Data sheet Pressure and temperature regulators, type PM ...

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 1

Data sheet Pressure and temperature regulators,type PM, and pilot valves

Introduction

Main valves, type PM 1 and PM 3

Pilot valves for mounting directly into main valves, type PM

Main valves,type PM 1 and PM 3

Main valve type PM is specially developed toregulate pressure and temperature inrefrigeration, freezing and air conditioning plantwith fluorinated refrigerants and ammonia.PM is a pilot operated main valve withscrewed-in pilot valves or pilot valves mountedin an external pilot line.Main valves type PM are used in refrigerationplant with:– dry evaporation– pump circulation– natural circulation

The regulator is available in two variants, PM 1and PM 3.PM 1 is designed to accept one pilot valveeither screwed-in or mounted in an external pilotline.PM 3 will accept three screwed-in pilot valves orpilot valves mounted in an external pilot line.Thus several functions can be performed by thesame valve.

2 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet Pressure and temperature regulators, type PM, and pilot valves

With the PM 3, pressure and temperatureregulation can be combined with:– electric controlled forced closing (override)– electric controlled forced opening (override)– electric controlled forced closing and opening

(override)– electric. controlled changeover between

two pressure or temperature settings– minimum pressure or temperature settings– maximum pressure limitation or relief– pneumatically controlled reference change– motor operated reference change– opening without pressure drop in suction lines

(with external pilot pressure).

Pilot valves can be mounted in external lines byusing the pilot valve housing type CVH.

Pilot valves Pilot valve program contains:� Pressure controlled pilot valve type CVP(LP)� Pressure controlled pilot valve type CVP(HP)� Pressure controlled pilot valve type CVC with

pilot signal connector� Differential pressure controlled pilot valve

type CVPP(LP)� Differential pressure controlled pilot valve

type CVPP(HP)� Temperature controlled pilot valve type CVT� Electronically controlled pilot valve type CVQ� Solenoid pilot valve type EVM-NC and

EVM- NO� Motor controlled pilot valve type CVPM

The pilot valves can perform the followingfunctions� Constant pressure regulation� Capacity regulation� Crank case pressure regulation� Refrigerant pressure regulation

Features Flexible function build-upPM main valve and pilot valves together haveinnumerable performances within:– on/off regulation– P-regulation– PI-regulation.

Simple and inexpensive installationScrew-in pilot valves, no welding or soldering.No need for a separate pilot line.

Flexible and inexpensive stock controlThe pilot valves can be used for all sizes of PMvalves.

Easy and inexpensive serviceQuick and easy filter cleaning.Quick and easy dismantling and assembly.Spindle for manual override opening.Pressure gauge connection.Universal application in all types of plant.

Advanced designLogarithmic throttle cone ensures preciseregulation of small loads.Teflon seat gives an excellent seal and preventscavitation.Low pressure drop despite the servo principlemeans energy savings.

PM valves can be supplied in both GG-25 andGGG-40.3.

Pilot valves where applicable, are supplied inGGG-40.3.

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 3

Data sheet Pressure and temperature regulators, type PM, and pilot valves

Configuration examples

Constant pressure regulationMaintenance of a constant evaporatingpressure.PM 1 main valve with screwed-inCVP (LP) pressure pilot valve

Constant pressure regulation combinedwith electric shut-off overrideMaintenance of a constant evaporatingpressure combined with electric shut-offoverride.PM 3 main valve with screwed-in EVMsolenoid pilot valve and CVP (LP)pressure pilot valve.

Electronic media temperatureregulationMaintenance of a constant mediatemperature.PM 1 main valve with screwed-in CVQelectric pilot valve and assosiatedEKS 61 electronic regulator.

Constant pressure regulation combinedwith electric open overrideMaintenance of a constant condensingpressure combined with electric forcedopen override.PM 3 main valve with screwed-in EVMsolenoid pilot valve and CVP (HP)pressure pilot valve.

On-off regulationSolenoid valve for electric shut-off ofsuction lines, liquid lines, condensatelines or bypass lines.PM 1 main valve with screwed-in EVMsolenoid pilot valve.

External control pressure withelectric on/off regulation combined withevaporator pressure regulationPM 3 regulator opens with no pressuredrop, e.g. using gas from high-pressureside.PM 3 main valve with screwed-inexternal pilot connector, EVM solenoidpilot valve and CVP (LP) pressure pilotvalve.

Differential pressure regulationMaintenance of a constant differentialpressure across the liquid regulatingvalve in a pump circulation system.PM 1 main valve with screwed-inCVPP (LP) differential pressure pilotvalve.

Thermostatic regulation combined withconstant pressure regulationMaintenance of a constant mediumtemperature (in a water chiller forexample) combined with limitation ofthe evaporating pressure.PM 3 main valve with screwed-inCVP (LP) pressure pilot valve and CVTtemperature pilot valve.

External control pressure with electricon/off regulationOpening of PM 1 main valve with nopressure drop, e.g. with gas from thehigh-pressure side.PM 1 main valve with screwed-inexternal pilot connection and EVMsolenoid pilot valve in the pilot line (notshown).

Electronic media temperature combinedwith constant pressure regulationMaintenance of a constant mediumtemperature combined with limitation ofthe evaporating pressure.PM 3 main valve with screwed-inCVP (LP) pressure pilot valve andCVQ electric pilot valve and associatedEKS 61 electronic regulator.

4 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet Main valves, type PM

Technical data Opening differential pressure�p bar

Type Size

Min. 10 W a.c. 20 W d.c. �C 4) bar 2) bar

Max. workingpressure

PB

Temperatureof medium

Max. testpressure

p'

PM1 5and PM3 10

15

20

25

32

40

50

65

0.2 21 14 �50 � +120 28 42

R 22,R 134a,R 404A,

R 12,R 502,

R 717 (NH3)

PM3

80 �50 � +120100 0.2 21 14 28 42125

R 22,R 134a,R 404A,

R 12,R 502,

R 717 (NH3)

Max. (MOPD) 3)Fully openRefrigerants

1)

1) Other fluorinated refrigerants can be used at the stated temperatures and pressures.2) Max. working pressure is limited to PB = 21 bar at temperatures below –10°C applied to GG-25 valves, and

temperatures below –20°C applied to GGG-40.3 valves.3) Solenoid valves only.4) For lower temperature applications (–50°C to –60°C) bolts in flanges and on top and bottom covers must be changed to

stainless steel type A4 quality 80 (see spare parts catalogue for ordering).

Rated capacity

The rated capacity is given for –10°C evaporating temperature, +25°C liquid temperature ahead of the expansion valve and a pressure drop of 0.2 bar across PMvalve. Extended capacities, see following pages.1) The kv value is the flow of water in m3/h at a pressure drop across valve of 1 bar, � = 1000 kg/m3.

Valve size Rated capacity in kW kv value

R 22 R 134a R 404A R 12 R 502 R 717 m3/h 1)



R 22 R 134a R 404A R 12 R 502 R 717 m3/h 1)

LiquidPM 5 23.0 22.0 17.0 18.0 16.0 110.0 1.6PM 10 47.0 45.0 34.0 36.0 32.0 220.0 3.0PM 15 70.0 67.0 50.0 54.0 48.0 331.0 4.0PM 20 164.0 157.0 119.0 127.0 113.0 772.0 7.0PM 25 258.0 247.0 186.0 199.0 177.0 1213.0 11.5PM 32 399.0 381.0 287.0 307.0 273.0 1874.0 17.2PM 40 703.0 672.0 506.0 542.0 482.0 3307.0 30.0PM 50 1008.0 963.0 726.0 777.0 691.0 4740.0 43.0PM 65 1876.0 1793.0 1350.0 1446.0 1286.0 8819.0 79.0PM 80 3306.0 3161.0 2380.0 2549.0 2267.0 15544.0 141.0PM 100 4806.0 4595.0 3461.0 3706.0 3296.0 22599.0 205.0PM 125 7713.0 7376.0 5555.0 5948.0 5290.0 36269.0 329.0

Suction gasPM 5 3.6 2.7 3.4 2.4 3.1 9.4 1.6PM 10 7.2 5.5 6.6 4.8 6.1 19.0 3.0PM 15 11.0 8.1 9.7 7.1 9.0 28.0 4.0PM 20 18.0 14.0 16.0 12.0 15.0 46.0 7.0PM 25 30.0 23.0 27.0 20.0 25.0 76.0 11.5PM 32 44.0 34.0 40.0 30.0 37.0 114.0 17.2PM 40 78.0 54.0 70.0 52.0 65.0 200.0 30.0PM 50 113.0 87.0 102.0 76.0 94.0 291.0 43.0PM 65 167.0 158.0 187.0 139.0 173.0 534.0 79.0PM 80 357.0 272.0 323.0 239.0 299.0 919.0 141.0PM 100 520.0 398.0 471.0 349.0 436.0 1340.0 205.0PM 125 831.0 635.0 752.0 557.0 696.0 2140.0 329.0

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 5

Rated capacity (continued)

Data sheet Main valves, type PM

Ordering Main valve incl. flange gaskets and flange bolts

1) PM 3-80 � PM 3-125 delivered complete with flanges.

Valve type Code no.

GG-25 GGG-40.3PM 1-5 027F1054 027F3001PM 1-10 027F1055 027F3002PM 1-15 027F1056 027F3003PM 1-20 027F1001 027F3004PM 1-25 027F1006 027F3005PM 1-32 027F1011 027F3006PM 1-40 027F1016 027F3007PM 1-50 027F1021 027F3008PM 1-65 027F1026 027F3009

Valve type Code no.

GG-25 GGG-40.3PM 3-5 027F1057 027F3010PM 3-10 027F1058 027F3011PM 3-15 027F1059 027F3012PM 3-20 027F1031 027F3013PM 3-25 027F1032 027F3014PM 3-32 027F1033 027F3015PM 3-40 027F1034 027F3016PM 3-50 027F1035 027F3017PM 3-65 027F1036 027F3018PM 3-80 1) 027F1270PM 3-100 1) 027F1275PM 3-125 1) 027F1280

Flange set 2)

Valve Flange typeWeld flange Solder flange

in. mmin. Code no. 1) Code no. 1) Code no. 1)

3/4 027N1220 7/8 027L1223 22 027L1222PM 5 � 25 3 1 027N1225 11/8 027L1229 28 027L1228

11/4 027N1230

11/4 027N2332PM 32 10 13/8 027L2335 35 027L233511/2 027N2340

11/2 027N2440PM 40 11 15/8 027L2441 42 027L24422 027N2450

2 027N2550PM 50 12 21/8 027L2554 54 027L255421/2 027N2565

21/2 027N2665PM 65 13 25/8 027L2666 76 027L26763 027N2680

PM 80 14A 4PM 100 14B 5PM 125 14C 6

The valves are delivered with weld flangesincluded in the code numbers.

Description Code no.Pressure gauge connection, � 6.5 / � 10 mm weld / solder 027B2035Pressure gauge connection, 1/4 in. flare (self-closing) Must not be used in ammonia plant 027B2041Pressure gauge connection, Cutting ring connection 6 mm 027B2063

10 mm 027B2064Pressure gauge connection 1/4 NPT 027B2062Function indicatorCan be fitted in place of the regulator bottom plug. When the protective cap of the indicator is removed, 027F0085the degree of opening of the PM-regulator can be observedExternal pilot connection (incl. damping orifice, D: 1.0 mm) 027F1048Damping orifice for EVM, 10 pcs. 027F0664Accessory bag with gasket and O-ring for the pilot valve 027F0666

Accessories

Function indicator

1) Code nos. apply to one flange setconsisting of an inlet and an outletflange.

2) Dimension sketch se spare partcatalogue.

Stainless steel: flanges, bolts for flanges and bolts for top and bottom covers , see spare partcatalogue for ordering.


Hot gasPM 5 14.0 11.0 11.0 9.5 11.5 38.0 1.6PM 10 27.0 22.0 22.0 19.0 23.0 75.0 3.0PM 15 40.0 32.0 32.0 27.0 33.0 109.0 4.0PM 20 55.0 45.0 45.0 38.0 45.0 151.0 7.0PM 25 97.0 79.0 79.0 67.0 80.0 265.0 11.5PM 32 152.0 123.0 123.0 105.0 125.0 415.0 17.2PM 40 265.0 215.0 216.0 184.0 218.0 726.0 30.0PM 50 437.0 354.0 356.0 303.0 359.0 1196.0 43.0PM 65 695.0 563.0 565.0 481.0 571.0 1901.0 79.0PM 80 1350.0 1064.0 1098.0 931.0 1109.0 3691.0 141.0PM 100 2133.0 1720.0 1735.0 1471.0 1752.0 5832.0 205.0PM 125 3248.0 2623.0 2642.0 2243.0 2667.0 8881.0 329.0


R 22 R 134a R 404A R 12 R 502 R 717 m3/h 1)

6 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet Pilot valves for PM main valves

Technical data andordering

Max.Type Description working kv-value Range Code no.pressure

PB [bar] [m3/h]

Pressure controlled pilot valveCVP (LP) For low pressure 17 0.40 0 � 7 bar 027B1100CVP (LP) For low pressure 17 0.40 –0.66 � 2 bar 027B1101CVP (HP) For high pressure 28 0.40 4 � 22 bar 027B1160CVP (HP) For high pressure 28 0.40 4 � 28 bar 027B1161CVP (HP) For high pressure 28 0.40 –0.66 � 7 bar 027B1164

Differential pressure controlled pilot valveCVPP (LP) For low pressure 17 0.40 �p = 0 � 7 bar 027B1102CVPP (HP) For high pressure 28 0.40 �p = 0 � 7 bar 027B1162CVPP (HP) For high pressure 28 0.40 �p = 4 � 22 bar 027B1168

CVT Opens at rising temp. 22 0.20 –40 � 0°C 027B1110CVT Opens at rising temp. 22 0.20 –10 � 25°C 027B1111CVT Opens at rising temp. 22 0.20 20 � 60°C 027B1112CVT Opens at rising temp. 22 0.20 80 � 140°C 027B1116CVTO Closes at rising temp. 22 0.20 –40 � 0°C 027B1117CVTO Closes at rising temp. 22 0.20 –10 � 25°C 027B1118CVTO Closes at rising temp. 22 0.20 20 � 60°C 027B1119

Temperature controlled pilot valve (pressure independent)

CVQ 17 0.45 –1 � 5 bar 027B1139CVQ 17 0.45 0 � 6 bar 027B1140CVQ 17 0.45 1.7 � 8 bar 027B1141

Electronically controlled pilot valve (pressure dependent)

CVP(M) Without motor 28 0.40 –0.66 � 7 bar 027B1170Pilot valve for motor controlled pilot valve (pressure dependent)

CVPM 220 V a.c., 50/60 Hz. 28 0.40 –0.66 � 7 bar 027B1171CVPM 24 V a.c. 28 0.40 –0.66 � 7 bar 027B1173

Motor controlled pilot valve (pressure dependent)

EVM Normally closed 35 0.37 MOPD = 21 bar1) 027B1120EVM Normally open 35 0.12 MCPD = 21 bar2) 027B1130

Valve body for EVM

CVC 28/17 0.20 –0.45 � 7 bar 027B1070Pressure controlled pilot valve with external reference pressure connection

The LP-versions must notbe exposed to pulsations.

Reference pressure max.3 bar above media pres-sure.

CVT opens at risingtemperature.CVTO closes at risingtemperature.Lenght of capillarytube: 5 m.

CVQ works in connectionwith controller type EKS 61or interface type EKA 46.

CVPM is a complete motorcontrolled pilot valve withmotor type AMV 523.

Coils, see "Coils for sole-noid valve" RD.3J.B2.02.1) MOPD = max. opening

differential pressure witha 10 W a.c. coil.

2) MOPD = max. closingdifferential pressure witha 12 W a.c. coil.

The max. workingpressures refers to thehigh pressure sideconnection (28 bar) andthe reference pressureconnection (17 bar).Reference pressure mustbe connected to the lowpressure side of the sy-stem.

Notes

The kv-values are measured with the pilot valves mounted to a CVH house for external pilot line. Note:the kv-value can vary slightly depending of the set point.

(LP) (HP)

CVP

(LP) (HP)

CVPP

CVT/CVTO

CVQ

CVP(M)

CVPM

(NC) (NO)

EVM

CVC

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 7

Data sheet Pilot valves for PM main valves

Housing for pilot valves for external pilot line

Technical data and ordering(continued)

Type Connection G Standard Material Code no.specification

CVH 6 Inside pipe thread 1/4 in. NPT ANSI B1.20.1 DIN. 9S Mn Pb 28 027F1159W no. 1.0718

Type Connection G Standard Material Code no.specification

CVH 6 Inside pipe thread G 1/4 A ISO 228-1 DIN. 9S Mn Pb 28 027F1160W no. 1.0718

Type Connection OD ID Standard Material Code no.mm mm specification

CVH 10 3/8 in. welding neck 18 12.7 Welding branch DIN. CK 15. 027F1047DIN 2559 - 22 W no. 1.1141


CVH 15 1/2 in. welding neck 22 17 Welding branch DIN. CK 15. 027F1090DIN 2559 - 22 W no. 1.1141


CVH 15 1/2 in. socket weld 31 22 DIN 3259 - T2 DIN. CK 15. 027F1091ASME B.16.11 3M W no. 1.1141

8 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet Extended capacities for PM main valves

Capacities

Liquid capacity for PM 1 and PM 3

PM 5 17 23 29 33 37

PM 10 33 47 57 66 74

PM 15 50 70 86 99 111

PM 20 116 164 201 232 259

PM 25 182 258 316 365 408

PM 32 282 399 488 564 630

PM 40 497 703 861 995 1112

PM 50 713 1008 1235 1426 1594

PM 65 1326 1876 2297 2652 2966

PM 80 2337 3306 4049 4675 5227

PM 100 3398 4806 5886 6797 7599

PM 125 5454 7713 9447 10908 12196

Type0.10 0.20 0.30 0.40 0.50

R 22

PM 5 14 22 24 28 31

PM 10 28 45 48 55 62

PM 15 41 67 71 83 93

PM 20 96 157 167 193 216

PM 25 152 247 264 303 339

PM 32 234 381 406 470 525

PM 40 414 672 717 828 926

PM 50 594 963 1028 1187 1327

PM 65 1105 1793 1913 2209 2470

PM 80 1946 3161 3372 3893 4352

PM 100 2830 4595 4902 5660 6329

PM 125 4542 7376 7867 9084 10156

R 134a

PM 5 12 17 20 24 26

PM 10 24 34 41 47 54

PM 15 36 50 62 71 80

PM 20 84 119 145 167 187

PM 25 131 186 228 263 294

PM 32 203 287 352 406 454

PM 40 358 506 621 716 801

PM 50 513 726 889 1027 1148

PM 65 956 1350 1654 1910 2136

PM 80 1683 2380 2916 3366 3764

PM 100 2448 3461 4239 4895 5473

PM 125 3928 5555 6803 7855 8782

R 404A

PM 5 78 110 135 156 174

PM 10 156 220 270 312 349

PM 15 234 331 405 468 523

PM 20 546 772 945 1091 1220

PM 25 857 1213 1485 1715 1917

PM 32 1325 1874 2295 2650 2963

PM 40 2339 3307 4051 4677 5229

PM 50 3352 4740 5806 6704 7495

PM 65 6236 8819 10801 12472 13945

PM 80 10991 15544 19037 21983 24577

PM 100 15980 22599 27679 31961 35733

PM 125 25646 36269 44421 51293 57347

R 717 (NH3)

The capacities are based on liquid temperature tl = 25�C, subcooling = 0 K, evaporating temperature te = – 10�C and superheat = 0 K.

Correction factorsWhen selecting, the evaporator capacity is to bemultiplied by a correction factor depending on

the liquid temperature ahead of the valve /evaporator. The selection can then be madefrom the table.

tl �C �10 0 10 20 25 30 40 50

R 22 0.76 0.81 0.88 0.96 1 1.05 1.16 1.31

R 134a 0.76 0.81 0.88 0.96 1 1.05 1.16 1.31

R 404A 0.70 0.76 0.84 0.94 1 1.07 1.24 1.47

R 717 (NH3) 0.84 0.88 0.92 0.97 1 1.03 1.09 1.16

1 kW = 0.284 tons (TR)

Liquid cap. Qe kW at a pressure drop across valve �p barType

0.10 0.20 0.30 0.40 0.50

Liquid cap. Qe kW at a pressure drop across valve �p bar

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 9


R 22�50 �45 �40 �35 �30 �25 �20 �15 �10 �5 0 5 10

�pbar

Type

PM 5 0.10 1 1.1 1.3 1.5 1.7 1.9 2.1 2.4 2.6 2.9 3.2 3.5 3.80.15 1.1 1.3 1.5 1.8 2 2.3 2.6 2.9 3.2 3.5 3.9 4.2 4.60.20 1.2 1.4 1.7 2 2.3 2.6 2.9 3.3 3.6 4 4.4 4.9 5.30.40 1.6 2 2.5 2.9 3.4 3.9 4.4 5 5.5 6.1 6.7 7.40.60 2 2.6 3.2 3.8 4.5 5.1 5.8 6.5 7.3 8 8.8

PM 10 0.10 1.9 2.2 2.6 3 3.4 3.8 4.2 4.7 5.2 5.7 6.3 6.9 7.50.15 2.2 2.6 3.1 3.5 4 4.5 5.1 5.7 6.3 7 7.7 8.4 9.20.20 2.4 2.9 3.4 4 4.5 5.2 5.8 6.5 7.2 8 8.8 9.6 110.40 3.2 4.1 4.9 5.9 6.8 7.8 8.8 9.8 11 12 13 150.60 4.1 5.2 6.4 7.7 8.9 10.2 11.6 13 14 16 18

PM 15 0.10 2.8 3.3 3.8 4.4 5 5.6 6.2 6.9 7.7 8.5 9.3 10 110.15 3.3 3.9 4.5 5.2 5.9 6.7 7.6 8.4 9.3 10 11 12 140.20 3.5 4.3 5 5.9 6.7 7.6 8.6 9.6 11 12 13 14 160.40 4.8 6.1 7.4 8.7 10 12 13 15 16 18 20 220.60 6.1 7.7 9.6 11 13 15 17 19 21 24 26

PM 20 0.10 4.8 5.6 6.5 7.4 8.3 9.4 11 12 13 14 16 17 190.15 5.6 6.6 7.7 8.8 10 11 13 14 16 17 19 21 230.20 6.2 7.4 8.6 10 11 13 15 16 18 20 22 24 260.40 8.6 11 13 15 17 20 22 25 27 30 33 360.60 14 17 20 23 26 29 33 36 40 43

PM 25 0.10 8 9.3 11 12 14 15 17 19 21 23 26 28 300.15 9.5 11 13 15 17 19 21 23 26 28 31 34 370.20 11 12 14 17 19 21 24 27 30 33 36 39 430.40 15 19 22 25 29 33 37 41 45 50 55 600.60 20 25 29 34 39 44 49 54 60 66 72

PM 32 0.10 12 14 16 18 21 23 26 29 32 35 38 42 460.15 14 17 19 22 25 28 31 35 39 43 47 51 560.20 16 19 22 25 28 32 36 40 44 49 54 59 640.40 23 28 33 38 43 49 55 61 68 75 82 900.60 30 37 44 51 58 65 73 81 90 99 108

PM 40 0.10 21 24 28 32 36 41 45 50 56 61 67 73 800.15 25 29 34 38 44 49 55 61 68 75 82 89 970.20 28 33 38 44 50 56 63 70 78 86 94 103 1120.40 41 49 58 63 76 86 96 107 119 131 144 1570.60 53 65 67 89 102 115 128 143 158 173 190

PM 50 0.10 31 36 41 46 53 59 66 73 81 89 98 107 1170.15 36 42 49 56 64 72 80 89 99 109 119 131 1430.20 40 48 55 64 72 82 92 102 113 125 137 150 1630.40 59 71 84 97 111 125 140 156 173 191 209 2280.60 77 95 112 129 148 167 187 208 230 253 277

PM 65 0.10 56 65 75 85 96 108 121 134 149 164 179 196 2130.15 67 78 90 102 116 131 146 163 180 199 218 240 2610.20 74 87 101 116 133 150 168 187 207 228 251 275 2990.40 108 130 153 178 203 229 257 286 317 349 383 4180.60 141 173 204 237 271 306 342 381 421 463 506

PM 80 0.10 96 111 128 146 165 186 208 231 255 281 309 337 3670.15 113 132 153 176 200 225 252 281 311 343 376 411 4490.20 124 147 172 199 227 257 288 321 357 393 432 473 5160.40 177 217 258 300 344 391 440 491 544 600 659 7200.60 229 284 341 398 458 519 583 651 721 794 870

PM 100 0.10 141 163 187 213 241 271 303 337 372 410 449 491 5350.15 166 194 224 257 292 328 368 409 453 499 548 600 6530.20 184 217 253 291 332 375 421 469 520 574 630 690 7520.40 266 323 381 442 506 574 644 718 795 876 961 10510.60 349 427 507 589 674 763 856 953 1054 1160 1270

PM 125 0.10 225 260 299 341 385 433 484 538 595 655 718 785 8550.15 264 310 358 410 466 525 587 654 724 798 876 958 10440.20 293 346 404 465 530 599 672 749 831 917 1007 1102 12020.40 424 514 608 706 808 916 1028 1146 1269 1399 1535 16780.60 554 679 807 939 1076 1218 1367 1521 1683 1852 2029



tl �C �10 0 10 20 25 30 40 50

R 22 0.76 0.81 0.88 0.96 1 1.05 1.16 1.31

Suction vapour capacityfor PM 1 and PM 3

The capacities are based on liquidtemperature tl = 25�C ahead of theevaporator.The table values refer to theevaporator capacity and aretabulated as a function of theevaporating temperature te and thepressure drop��p across the valve.The capacities are based on dry,saturated gas ahead of the valve.Under operation with superheatedgas ahead of the valve thecapacities are reduced by 4% forevery 10 K superheat.

Suction vapour capacity Qe kW at evaporating temperature te �C

Capacities (continued)

10 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


R 134a�50 �45 �40 �35 �30 �25 �20 �15 �10 �5 0 5 10

�pbar

Type

PM 5 0.10 0.68 0.80 0.91 1.1 1.3 1.5 1.6 1.8 2.1 2.3 2.5 2.7 30.15 0.91 1.1 1.3 1.5 1.7 1.9 2.2 2.4 2.7 3 3.3 3.70.20 0.91 1.1 1.4 1.7 1.9 2.2 2.5 2.7 3.1 3.4 3.8 4.10.40 1.6 1.9 2.4 2.7 3.2 3.7 4.1 4.6 5.1 5.70.60 1.9 2.4 3 3.5 4.1 4.7 5.4 6 6.7

PM 10 0.10 1.4 1.6 1.9 2.2 2.5 2.9 3.2 3.5 4 4.5 4.9 5.4 5.90.15 1.8 2.2 2.5 3 3.4 3.9 4.3 4.8 5.4 5.9 6.5 7.20.20 1.9 2.4 2.9 3.3 3.8 4.3 4.9 5.5 6.2 6.7 7.4 8.20.40 3.1 3.9 4.7 5.5 6.4 7.2 8.2 9.1 10 110.60 3.9 4.8 5.9 7.1 8.2 9.4 11 12 11

PM 15 0.10 1.9 2.4 2.7 3.2 3.8 4.2 4.8 5.4 5.9 6.5 7.2 8 8.70.15 2.6 3.2 3.8 4.3 5 5.7 6.4 7.2 7.9 8.8 9.6 100.20 2.9 3.5 4.2 4.9 5.6 6.4 7.2 8.1 9 10 11 120.40 4.6 5.8 7 8.2 9.5 11 12 14 15 170.60 5.8 7.2 8.8 10 12 14 16 18 20

PM 20 0.10 3.4 4.1 4.8 5.5 6.3 7.1 8.0 8.9 10 11 12 13 150.15 4.7 5.6 6.5 7.5 8.6 9.6 11 12 13 15 16 180.20 5 6 7.2 8.3 9.6 11 12 14 15 17 19 200.40 8.3 10 12 14 16 18 21 23 25 280.60 10 13 16 18 21 24 27 30 33

PM 25 0.10 5.8 6.8 8 9.1 10 12 13 15 16 18 20 22 240.15 8 9.3 11 12 14 16 18 20 22 24 27 290.20 8.8 10 12 14 16 18 20 23 25 28 30 330.40 15 18 21 24 27 31 34 38 42 460.60 15 19 23 27 32 36 41 45 50 56

PM 32 0.10 9 10 12 14 16 18 20 22 25 27 30 33 360.15 12 14 16 19 21 24 27 30 33 36 40 440.20 13 16 18 21 24 27 30 34 38 42 46 500.40 22 27 31 36 41 46 52 57 63 700.60 29 35 41 47 54 61 68 75 83

PM 40 0.10 15 18 21 24 27 31 35 39 43 47 52 57 630.15 21 25 29 33 37 42 47 52 58 63 70 760.20 23 27 32 37 42 48 53 59 66 73 80 880.40 40 47 55 63 72 81 90 100 111 1220.60 51 62 73 84 95 107 120 132 146

PM 50 0.10 22 26 30 35 40 45 50 56 62 69 76 84 920.15 31 36 42 48 61 61 68 76 84 92 102 1110.20 33 40 47 54 0 69 78 87 96 106 116 1280.40 58 69 80 92 105 117 131 146 161 1770.60 73 89 105 121 138 155 173 193 212

PM 65 0.10 41 48 56 64 73 82 92 103 114 127 139 154 1680.15 56 66 76 87 99 111 124 139 154 170 186 2040.20 61 73 85 98 112 127 143 158 176 194 213 2340.40 105 125 147 169 192 215 241 267 295 3250.60 135 164 193 222 253 285 318 353 390

PM 80 0.10 69 81 95 109 124 141 158 177 197 218 239 263 2880.15 111 129 148 169 190 214 238 264 292 320 3510.20 101 122 144 166 192 217 244 272 302 334 367 4020.40 172 209 245 284 324 366 410 457 506 5560.60 217 267 319 372 425 481 540 601 666

PM 100 0.10 101 120 139 160 182 206 231 258 287 317 350 384 4200.15 139 164 190 218 247 279 312 348 385 425 467 5120.20 152 181 213 245 280 317 357 398 441 487 536 5870.40 259 311 364 420 478 538 602 669 740 8140.60 332 404 475 551 628 709 793 882 975

PM 125 0.10 161 190 222 255 291 328 369 413 458 507 559 613 6700.15 221 261 303 348 396 446 499 555 616 679 746 8170.20 242 290 339 392 448 506 569 635 705 779 856 9380.40 412 495 580 669 762 860 961 1068 1181 13000.60 527 641 758 878 1002 1131 1267 1409 1556



tl �C �10 0 10 20 25 30 40 50

R 134a 0.76 0.81 0.88 0.96 1 1.05 1.16 1.31





� Danfoss A/S, 09 - 1999 RD.4X.A2.02 11


R 404A�50 �45 �40 �35 �30 �25 �20 �15 �10 �5 0 5 10

�pbar

Type

PM 5 0.10 0.86 0.97 1.2 1.3 1.5 1.7 1.9 2.2 2.4 2.6 2.9 3.1 3.50.15 0.97 1.2 1.4 1.6 1.8 2.1 2.3 2.6 2.9 3.2 3.6 3.9 4.20.20 1.1 1.3 1.5 1.8 2.1 2.4 2.7 2.9 3.4 3.7 4 4.4 4.90.40 1.2 1.6 1.9 2.3 2.7 3.1 3.6 4 4.5 5.1 5.6 6.2 6.80.60 1.6 2.1 2.5 3 3.6 4.1 4.8 5.4 6.1 6.7 7.3 8.1

PM 10 0.10 1.7 1.9 2.3 2.6 3 3.4 3.8 4.2 4.8 5.2 5.7 6.3 6.90.15 1.9 2.4 2.7 3.1 3.6 4.1 4.6 5.2 5.7 6.4 7 7.7 8.30.20 2.2 2.6 3 3.6 4.1 4.6 5.3 5.8 6.6 7.2 8 8.8 9.60.40 2.4 3.1 3.9 4.6 5.4 6.3 7.1 8 9 10 11 12 130.60 3.1 4 5.1 6.1 7.1 8.2 9.4 11 12 13 15 16

PM 15 0.10 2.5 2.9 3.4 3.9 4.4 5 5.6 6.3 6.9 7.7 8.4 9.3 100.15 2.9 3.5 4 4.6 5.3 6.1 6.8 7.6 8.4 9.4 10 11 120.20 3.2 3.9 4.5 5.3 6.1 6.9 7.8 8.8 9.7 11 12 13 140.40 3.7 4.6 5.7 6.8 8 9.2 10 12 13 15 16 18 200.60 4.8 6.1 7.6 9.1 11 12 14 16 18 20 22 24

PM 20 0.10 4.2 5 5.7 6.6 7.5 8.4 9.4 10 12 13 14 16 170.15 5 5.9 6.9 7.9 9 10 11 13 14 16 17 19 210.20 5.6 6.6 7.8 9 10 12 13 15 16 18 20 22 240.40 6.6 8.2 9.9 12 14 16 18 20 22 25 28 30 330.60 8.5 11 13 16 18 21 24 27 30 33 37 40

PM 25 0.10 7 8 9 11 12 14 15 17 19 21 23 25 280.15 8 10 11 13 15 17 19 21 23 26 28 31 340.20 9 11 13 15 17 19 21 24 27 29 33 36 390.40 12 14 17 20 23 26 30 33 37 41 45 50 550.60 16 19 23 27 31 35 40 44 49 55 60 66

PM 32 0.10 10 12 14 16 18 21 23 26 29 32 35 38 420.15 13 15 17 20 22 25 28 31 35 39 43 47 510.20 14 17 19 22 25 29 32 36 40 44 49 54 590.40 17 21 25 30 34 39 44 50 56 62 68 75 820.60 23 29 34 40 46 53 60 67 74 82 91 99

PM 40 0.10 18 21 25 28 32 36 41 45 50 55 61 67 730.15 22 26 30 34 39 44 49 55 61 68 74 81 890.20 25 29 34 39 44 50 57 63 70 78 86 94 1020.40 31 38 45 52 60 69 78 87 97 108 119 131 1440.60 41 50 60 71 81 93 104 117 130 144 159 174

PM 50 0.10 27 31 36 41 47 53 59 66 73 81 89 97 1060.15 32 37 43 50 57 64 72 80 89 98 109 119 1300.20 36 42 49 57 65 73 82 92 102 113 124 137 1500.40 45 55 65 76 88 100 113 127 141 158 174 191 2100.60 59 73 87 102 118 135 152 171 189 210 231 254

PM 65 0.10 49 57 66 75 86 96 108 121 134 148 163 178 1940.15 59 69 80 91 104 118 132 147 163 180 199 218 2390.20 66 78 90 104 119 134 151 168 187 207 228 251 2740.40 82 100 119 139 161 184 207 233 260 288 319 350 3820.60 109 135 160 188 216 246 279 312 347 384 423 464

PM 80 0.10 84 98 113 130 147 166 187 207 231 255 281 307 3360.15 100 118 136 157 178 202 227 253 281 311 342 375 4090.20 111 132 154 178 203 231 259 291 323 357 393 432 4720.40 134 166 200 235 273 313 355 400 446 496 548 602 6590.60 176 221 268 315 366 419 474 534 595 659 727 797

PM 100 0.10 123 144 165 189 215 242 272 302 336 372 408 447 4880.15 147 172 200 229 260 294 330 368 409 453 498 546 5970.20 164 194 226 260 297 337 379 423 471 521 573 629 6870.40 202 247 296 347 402 459 519 584 651 724 798 878 9610.60 268 332 397 467 539 616 697 781 869 963 1061 1164

PM 125 0.10 197 229 265 302 343 434 484 537 593 652 715 7810.15 234 274 319 365 416 470 528 589 654 723 796 873 9540.20 262 310 361 416 475 538 605 676 752 832 916 1004 10980.40 321 395 472 554 640 732 829 932 1040 1155 1275 1402 15360.60 427 528 634 744 861 983 1112 1246 1389 1538 1695 1860



tl �C �10 0 10 20 25 30 40 50

R 404A 0.70 0.76 0.84 0.94 1 1.07 1.24 1.47





12 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


R 717 (NH3)�50 �45 �40 �35 �30 �25 �20 �15 �10 �5 0 5 10

�pbar

Type

PM 5 0.10 2.2 2.7 3.2 3.7 4.2 4.8 5.4 6.1 6.8 7.5 8.3 9.1 100.15 3.1 3.7 4.3 5 5.8 6.5 7.4 8.2 9.1 10 11 120.20 3.3 4 4.8 5.6 6.5 7.4 8.4 9.4 11 12 13 140.40 4.4 5.7 7 8.4 9.8 11 13 14 16 18 190.60 5.7 7.3 9.1 11 13 15 17 19 21 23

PM 10 0.10 4.4 5.3 6.3 7.3 8.4 9.5 11 12 13 15 16 18 200.15 6.1 7.3 8.6 10 11 13 15 16 18 20 22 240.20 6.5 8 9.6 11 13 15 17 19 21 23 25 280.40 8.7 11 14 17 19 22 25 28 32 35 380.60 11 15 18 22 26 30 33 38 42 46

PM 15 0.10 6.5 7.9 9.3 11 12 14 16 18 20 22 24 27 290.15 9 11 13 15 17 19 22 24 27 30 33 360.20 9.7 12 14 17 19 22 25 28 31 34 37 410.40 13 17 21 25 29 33 37 42 47 52 570.60 17 22 27 33 38 44 50 56 62 68

PM 20 0.10 11 13 16 18 21 24 27 30 33 37 41 45 490.15 16 19 22 25 29 32 36 41 45 50 55 600.20 17 21 24 28 32 37 42 46 52 57 63 690.40 24 30 36 43 49 56 63 71 79 87 960.60 31 39 48 57 66 75 84 94 105 115

PM 25 0.10 19 22 26 30 34 39 44 49 55 60 67 73 800.15 26 31 36 41 47 53 60 66 74 81 89 980.20 29 35 41 47 54 61 68 76 85 93 103 1120.40 38 52 62 72 82 93 105 117 130 143 1570.60 42 56 69 83 96 110 125 140 156 173 190

PM 32 0.10 28 34 40 45 52 58 66 74 82 91 100 110 1200.15 40 47 54 62 71 80 90 100 111 122 134 1470.20 44 52 61 70 81 91 102 114 127 140 154 1690.40 46 63 78 92 107 123 140 157 176 195 215 2360.60 83 103 123 144 165 187 210 234 259 285

PM 40 0.10 50 59 69 79 90 102 115 129 143 159 175 192 2100.15 69 82 95 109 124 140 156 174 193 213 235 2570.20 77 91 107 123 141 160 179 200 222 245 270 2950.40 111 137 162 189 216 245 276 308 341 376 4130.60 146 182 218 253 290 328 368 410 454 499

PM 50 0.10 72 86 100 115 131 149 168 188 209 232 256 281 3070.15 101 119 138 158 180 203 228 254 282 311 343 3750.20 111 133 156 180 205 232 261 291 324 357 393 4300.40 162 198 236 274 315 357 401 448 497 548 6010.60 211 265 315 368 422 478 536 597 661 727

PM 65 0.10 132 157 183 211 241 273 307 344 382 426 469 514 5620.15 184 217 252 290 330 372 417 465 516 569 629 6880.20 204 243 285 329 376 426 478 534 593 655 720 7880.40 297 363 432 503 577 654 735 820 910 1003 11010.60 387 485 577 673 772 875 982 1094 1211 1332

PM 80 0.10 225 267 313 362 414 469 529 592 659 730 806 885 9680.15 312 370 431 497 566 640 718 801 889 982 1079 11810.20 342 412 485 562 644 731 822 919 1021 1128 1241 13590.40 486 605 726 851 981 1116 1260 1408 1563 1726 18960.60 631 798 965 1135 1309 1489 1677 1874 2077 2289

PM 100 0.10 330 392 458 528 604 684 771 863 961 1064 1173 1288 14090.15 460 543 632 726 827 934 1048 1169 1296 1431 1572 17210.20 507 607 712 824 942 1067 1200 1340 1488 1644 1808 19810.40 732 901 1074 1253 1440 1637 1842 2057 2282 2518 27650.60 962 1196 1433 1676 1926 2186 2459 2741 3035 3342

PM 125 0.10 527 626 731 843 964 1093 1231 1378 1535 1700 1875 2058 22520.15 733 867 1009 1160 1321 1492 1674 1867 2070 2285 2512 27490.20 807 968 1136 1315 1504 1704 1916 2140 2377 2627 2889 31640.40 1165 1436 1713 2000 2298 2614 2941 3285 3645 4022 44160.60 1529 1904 2284 2673 3074 3489 3926 4377 4847 5337



tl �C �10 0 10 20 25 30 40 50

R 717 (NH3) 0.84 0.88 0.92 0.97 1 1.03 1.09 1.16





� Danfoss A/S, 09 - 1999 RD.4X.A2.02 13



R 22Evaporating

temp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8

Hot gas capacity in kWat pressure drop across valve �p bar

PM 5 �50 5.8 8.1 9.9 11 13 17 21 22 22�40 6 8.4 10 12 13 17 22 23 23�30 6.2 8.7 11 12 13 18 22 24 24�20 6.4 8.9 11 12 14 18 23 24 24�10 6.6 9.2 11 13 14 19 24 25 25

0 6.7 9.4 11 13 15 20 24 26 2610 6.9 9.7 12 13 15 20 25 26 26

PM 10 �50 11 16 19 22 25 33 42 44 44�40 12 16 20 23 25 34 43 46 46�30 12 17 21 24 26 35 44 47 47�20 13 18 21 24 27 36 46 48 48�10 13 18 22 25 28 37 47 50 50

0 13 19 22 26 28 38 48 51 5110 14 19 23 26 29 39 49 52 52

PM 15 �50 16 23 28 32 36 48 61 65 65�40 17 24 29 33 37 50 63 68 68�30 18 25 30 34 38 51 65 70 70�20 18 25 31 35 39 53 67 72 72�10 19 26 32 36 40 54 69 74 74

0 19 27 33 37 41 56 71 76 7610 20 27 33 38 42 57 73 78 78

PM 20 �50 23 32 39 45 49 68 89 99 99�40 23 33 40 46 51 70 92 102 102�30 24 34 41 47 53 72 94 105 105�20 25 35 43 49 54 74 97 108 108�10 26 36 44 50 56 76 100 112 112

0 26 37 45 52 57 78 103 115 11510 27 38 46 53 59 80 105 117 117

PM 25 �50 40 56 68 78 87 119 157 176 176�40 41 58 70 80 89 122 162 182 182�30 42 59 72 83 92 126 167 187 187�20 44 61 75 86 95 130 172 193 193�10 45 63 77 88 98 134 177 199 199

0 46 65 79 90 100 138 182 204 20410 47 66 81 93 103 141 186 209 209

PM 32 �50 62 87 106 122 136 185 244 273 273�40 64 90 110 126 140 191 252 282 282�30 66 93 113 130 144 198 260 291 291�20 68 96 117 134 149 204 268 300 300�10 70 99 120 138 153 210 276 309 309

0 72 101 123 142 157 215 283 317 31710 74 104 126 145 161 221 290 325 325

Evaporatingtemp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 40 �50 109 153 186 214 237 325 430 483 483�40 112 158 192 220 245 336 444 498 498�30 116 163 198 227 253 346 458 514 514�20 119 168 204 234 260 357 472 530 530�10 123 173 210 241 268 367 486 545 545

0 126 177 216 248 275 377 499 560 56010 129 182 221 254 282 387 511 574 574

PM 50 �50 180 252 306 352 391 536 706 795 795�40 185 260 316 363 403 553 729 821 821�30 191 268 326 375 416 571 752 847 847�20 197 276 336 386 429 588 775 873 873�10 203 284 346 397 442 605 798 898 898

0 208 292 356 408 453 621 819 922 92210 213 299 364 418 465 637 840 945 945

PM 65 �50 285 400 487 559 621 852 1127 1264 1264�40 294 413 503 577 642 880 1163 1305 1305�30 303 426 519 596 662 908 1200 1347 1347�20 312 439 535 614 682 935 1237 1388 1388�10 322 452 550 632 702 962 1273 1428 1428

0 330 464 565 649 721 988 1307 1467 146710 338 476 579 665 739 1013 1340 1503 1503

PM 80 �50 554 779 947 1086 1206 1646 2142 2374 2374�40 572 804 978 1121 1245 1699 2212 2451 2451�30 590 829 1009 1157 1285 1753 2282 2529 2529�20 608 855 1040 1193 1324 1807 2352 2606 2606�10 626 880 1070 1227 1363 1859 2420 2682 2682

0 643 903 1099 1260 1399 1909 2485 2754 275410 659 926 1126 1292 1434 1957 2547 2822 2822

PM 100 �50 876 1230 1496 1716 1906 2601 3388 3758 3758�40 904 1270 1545 1772 1967 2685 3498 3879 3879�30 933 1310 1594 1828 2030 2770 3609 4003 4003�20 961 1350 1643 1884 2092 2855 3719 4126 4126�10 989 1390 1690 1939 2153 2938 3827 4245 4245

0 1016 1427 1736 1991 2211 3017 3930 4360 436010 1041 1462 1779 2040 2266 3092 4028 4468 4468

PM 125 �50 1332 1872 2278 2613 2902 3966 5185 5776 5776�40 1375 1933 2352 2698 2996 4094 5352 5963 5963�30 1419 1994 2427 2784 3092 4224 5523 6153 6153�20 1463 2055 2501 2869 3186 4354 5692 6341 6341�10 1505 2115 2573 2952 3279 4480 5857 6525 6525

0 1546 2172 2643 3032 3367 4601 6015 6701 670110 1584 2226 2708 3107 3450 4715 6164 6867 6867

The capacities are based oncondensing temperature tc = 35�C,subcooling tsub = 4 K, superheatingat evaporator discharge of 10 K anda hot gas temperature th = 60�C.An increase of the superheating atthe evaporator outlet of 10 Kreduces the capacities by 2% andvice versa.


the subcooling ahead of the valve / evaporator.The selection can then be made from the table.

tsub K 0 4 10 15 20 25 30 35 40 45

R 22 1.11 1 0.91 0.87 0.80 0.77 0.74 0.71 0.69 0.67

Hot gas capacity for PM 1 and PM 3 Hot gas capacity for PM 1 and PM 3R 22

14 RD.4X.A2.02 � Danfoss A/S, 09 - 1999



R 134aHot gas capacity for PM 1 and PM 3 Hot gas capacity for PM 1 and PM 3R 134aEvaporating

temp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 �50 3.8 5.2 6.4 7.2 7.9 10 11 11 11�40 3.9 5.5 6.6 7.5 8.3 11 12 12 12

�30 4.1 5.7 6.8 7.8 8.6 11 12 12 12�20 4.2 5.9 7 8 8.8 11 13 13 13�10 4.4 6 7.2 8.3 9 12 13 13 13

0 4.5 6.2 7.5 8.5 9.3 12 13 13 13 10 4.5 6.4 7.7 8.7 9.6 12 14 14 14

PM 10 �50 7.4 10 12 14 16 20 23 23 23�40 7.7 11 13 15 16 21 23 23 23�30 8 11 13 15 17 22 24 24 24�20 8.3 11 14 16 17 22 25 25 25�10 8.5 12 14 16 18 23 26 26 26

0 8.7 12 15 17 18 24 27 27 2710 8.9 12 15 17 19 24 27 27 27

PM 15 �50 11 15 18 21 23 29 34 34 34�40 11 16 19 21 24 31 35 35 35�30 11 16 19 22 24 32 36 36 36�20 12 17 20 23 25 33 37 37 37�10 12 17 21 23 26 34 38 38 38

0 13 18 21 24 27 35 39 39 3910 13 18 22 25 27 36 40 40 40

PM 20 �50 15 21 25 29 32 42 51 51 51�40 15 22 26 30 33 44 53 53 53�30 16 22 27 31 34 46 55 55 55�20 16 23 28 32 35 47 56 56 56�10 17 24 29 33 36 48 58 58 58

0 17 24 30 34 37 50 60 60 6010 18 25 30 35 38 61 61 61 61

PM 25 �50 26 36 44 50 56 75 90 90 90�40 27 38 46 52 58 78 94 94 94�30 28 39 47 54 60 80 97 97 97�20 29 40 49 56 62 83 101 101 101�10 30 42 50 58 64 85 104 104 104

0 30 43 52 59 65 88 106 106 10610 31 44 53 61 67 90 109 109 109

PM 32 �50 41 57 69 79 87 117 141 141 141�40 42 59 72 82 91 121 146 146 146�30 44 61 74 85 94 125 151 151 151�20 45 63 76 87 97 129 156 156 156�10 46 65 79 90 100 133 161 161 161

0 48 67 81 93 103 137 165 165 16510 49 69 83 95 105 141 170 170 170

Evaporatingtemp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 40 �50 71 100 121 138 153 204 248 248 248-40 74 104 125 143 159 213 257 257 257-30 76 107 130 148 164 220 267 267 267-20 79 110 134 153 169 227 276 276 276-10 81 114 138 158 175 234 284 284 284

0 84 117 142 162 180 240 292 292 29210 86 121 145 166 184 247 300 300 300

PM 50 -50 118 164 199 227 252 336 409 409 409-40 123 170 206 237 261 350 425 425 425-30 126 177 214 244 271 362 440 440 440-20 130 182 220 253 279 373 454 454 454-10 134 187 227 259 288 385 467 467 467

0 138 193 234 267 295 396 481 481 48110 142 198 240 275 304 407 494 494 494

PM 65 -50 186 260 316 361 400 536 650 650 650-40 194 271 329 375 415 558 675 675 675-30 200 280 340 389 430 577 699 699 699-20 206 290 351 401 444 596 721 721 721-10 213 298 361 413 457 613 743 743 743

0 219 307 371 425 470 631 764 764 76410 225 314 382 437 484 648 786 786 786

PM 80 -50 362 506 614 700 773 1025 1218 1218 1218-40 376 526 637 728 804 1066 1266 1266 1266-30 390 545 660 753 832 1103 1310 1310 1310-20 402 562 681 777 859 1138 1353 1353 1353-10 414 580 701 801 884 1172 1393 1393 1393

0 426 596 721 824 910 1206 1433 1433 143310 438 612 741 846 935 1239 1472 1472 1472

PM 100 -50 572 800 969 1106 1223 1621 1929 1929 1929-40 595 831 1007 1150 1270 1684 2005 2005 2005-30 616 861 1042 1190 1315 1743 2075 2075 2075-20 635 888 1075 1228 1358 1799 2140 2140 2140-10 654 915 1108 1264 1397 1853 2205 2205 2205

0 673 941 1140 1301 1437 2268 2268 2268 226810 692 967 1171 1337 1477 1959 2330 2330 2330

PM 125 -50 870 1218 1475 1685 1863 2477 2965 2965 2965-40 904 1266 1534 1752 1937 2575 3082 3082 3082-30 937 1310 1587 1814 2005 2665 3189 3189 3189-20 966 1353 1639 1872 2068 2750 3292 3292 3292-10 996 1393 1687 1928 2131 2833 3391 3391 3391

0 1024 1433 1736 1982 2192 2914 3487 3487 348710 1052 1472 1783 2037 2252 2993 3582 3582 3582




tsub K 0 4 10 15 20 25 30 35 40 45

R 134a 1.11 1 0.91 0.87 0.80 0.77 0.74 0.71 0.69 0.67

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 15


R 404AHot gas capacity for PM 1 and PM 3 Hot gas capacity for PM 1 and PM 3R 404AEvaporating

temp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 �50 4.4 6.2 7.5 8.5 9.5 13 16 18 18�40 4.7 6.6 8 9.2 10 14 17 19 19�30 4.9 7 8.4 9.7 11 15 18 20 20�20 5.3 7.3 9 10 11 15 19 21 21�10 5.5 7.7 9.4 11 12 16 20 22 22

0 5.7 8 9.7 11 12 17 21 23 2310 5.9 8.2 10 12 13 17 22 24 24

PM 10 �50 8.6 12 15 17 19 25 32 35 35�40 9.2 13 16 18 20 27 34 37 37�30 9.7 14 17 19 21 28 36 39 40�20 10 14 18 20 22 30 38 42 42�10 11 15 18 21 23 31 40 43 44

0 11 16 19 22 24 33 42 45 4510 12 16 20 23 25 34 43 47 47

PM 15 �50 12 17 21 24 27 37 47 52 52�40 13 19 23 26 29 39 50 55 55�30 14 20 24 28 30 41 53 58 59�20 15 21 25 29 32 44 56 61 62�10 16 22 26 30 34 46 59 64 65

0 16 23 28 32 35 47 61 67 6710 17 23 29 33 36 49 63 69 69

PM 20 �50 17 24 29 34 37 51 68 77 78�40 18 26 31 36 40 55 73 82 83�30 19 27 33 38 42 58 77 87 88�20 20 29 35 40 45 61 81 92 93�10 21 30 37 42 47 64 85 96 98

0 22 31 38 44 49 67 88 100 10110 23 32 39 45 50 69 91 103 105

PM 25 �50 30 42 51 59 66 90 119 136 139�40 32 45 55 63 70 96 128 145 148�30 34 48 58 67 74 102 136 155 158�20 36 50 61 70 78 107 143 163 166�10 37 53 64 74 82 112 149 170 173

0 39 55 67 77 85 117 156 177 18010 40 57 69 79 88 122 161 183 186

PM 32 �50 47 66 81 92 103 141 186 212 216�40 50 71 86 99 109 150 200 227 231�30 53 75 91 105 116 160 211 240 244�20 56 79 96 110 123 168 222 253 258�10 59 83 101 115 129 176 234 265 270

0 61 86 105 121 134 183 243 276 28010 63 89 108 125 138 190 251 285 290

Evaporatingtemp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 40 �50 82 115 141 162 180 247 329 374 381�40 88 124 150 173 192 264 351 400 407�30 93 131 160 183 204 280 372 423 432�20 98 138 168 193 214 295 392 447 455�10 103 144 176 202 225 308 410 468 476

0 107 150 183 210 234 321 426 486 49510 110 156 190 217 242 332 442 503 513

PM 50 �50 136 191 232 267 297 407 540 614 628�40 145 203 247 284 316 435 577 656 671�30 153 215 263 302 336 460 612 695 712�20 162 228 277 318 353 485 644 732 750�10 170 238 289 333 370 508 675 767 785

0 176 247 302 346 385 528 701 798 81610 182 256 312 358 398 547 726 825 845

PM 65 �50 215 303 369 423 471 647 861 986 999�40 230 323 393 452 503 691 919 1052 1066�30 244 343 417 480 534 732 974 1115 1131�20 256 362 440 506 561 773 1027 1176 1192�10 269 378 460 528 588 809 1075 1231 1247

0 280 393 479 550 612 840 1119 1280 129810 289 407 495 570 632 869 1157 1325 1343

PM 80 �50 419 589 718 823 915 1251 1644 1851 1880�40 448 629 765 879 976 1336 1754 1976 2006�30 475 667 813 932 1035 1417 1860 2095 2128�20 501 703 856 982 1091 1494 1960 2207 2242�10 523 736 896 1028 1142 1564 2052 2310 2346

0 545 765 932 1069 1188 1626 2135 2404 244110 563 792 964 1106 1229 1682 2208 2486 2526

PM 100 �50 662 931 1133 1301 1445 1979 2599 2928 2975�40 707 994 1210 1388 1542 2112 2774 3125 3175�30 750 1054 1283 1473 1636 2239 2942 3315 3368�20 790 1110 1352 1551 1723 2360 3099 3493 3548�10 827 1163 1415 1624 1805 2470 3245 3657 3714

0 860 1209 1472 1689 1877 2570 3375 3804 386410 890 1251 1523 1748 1942 2658 3492 3935 3997

PM 125 �50 1008 1417 1725 1981 2200 3016 3974 4494 4570�40 1076 1513 1842 2114 2348 3219 4241 4797 4878�30 1141 1605 1953 2241 2491 3413 4498 5087 5174�20 1202 1690 2058 2362 2624 3597 4739 5360 5452�10 1259 1770 2154 2472 2747 3765 4960 5611 5706

0 1309 1841 2241 2572 2858 3917 5160 5838 593710 1354 1904 2319 2662 2957 4052 5340 6039 6142




tsub K 0 4 10 15 20 25 30 35 40 45

R 404A 1.11 1 0.91 0.87 0.80 0.77 0.74 0.71 0.69 0.67


16 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


R 717 (NH3)Hot gas capacity for PM 1 and PM 3 Hot gas capacity for PM 1 and PM 3R 717 (NH3)Evaporating

temp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 �50 17 23 28 32 36 49 62 66 66�40 17 24 29 33 37 50 63 67 67�30 17 24 30 34 37 51 64 68 68�20 18 25 30 34 38 51 65 70 70�10 18 25 31 35 39 52 66 71 71

0 18 25 31 35 39 53 67 71 7210 18 26 31 36 40 53 68 72 72

PM 10 �50 33 46 56 64 70 95 121 130 131�40 33 47 57 65 72 97 124 133 133�30 34 48 58 66 73 99 126 136 136�20 35 48 59 67 75 101 128 138 138�10 35 49 60 68 76 102 130 140 140

0 35 50 60 69 77 104 132 142 14210 36 50 61 70 77 105 133 143 144

PM 15 �50 47 66 80 92 102 139 178 193 194�40 48 68 82 94 104 141 182 197 198�30 49 69 84 96 106 144 185 201 202�20 50 70 85 98 108 147 188 205 205�10 51 71 86 99 110 149 191 208 208

0 51 72 88 100 111 151 194 210 21110 52 73 88 101 112 152 196 212 213

PM 20 �50 65 92 111 128 142 195 257 290 291�40 66 93 114 131 145 199 262 296 298�30 68 95 116 133 148 203 268 302 304�20 69 97 118 135 150 206 272 307 309�10 70 98 120 137 153 209 276 311 313

0 71 100 121 139 155 212 280 315 31710 72 101 122 141 156 214 283 319 320

PM 25 �50 114 160 195 224 249 342 454 515 518�40 116 163 199 228 254 349 463 526 529�30 118 167 203 233 259 356 472 536 540�20 120 169 206 237 263 362 480 545 549�10 122 172 209 241 267 367 488 554 557

0 124 174 212 244 271 372 494 561 56410 125 176 214 246 273 376 499 566 570

PM 32 �50 178 251 305 350 389 534 707 801 806�40 182 256 312 358 398 546 723 818 823�30 185 261 318 365 405 556 737 834 839�20 189 265 323 371 412 566 749 848 854�10 191 269 328 377 419 574 761 861 867

0 194 273 332 381 424 582 770 872 87710 196 275 335 385 428 587 778 880 886

Evaporatingtemp.

te �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 40 �50 311 438 534 613 681 936 1244 1413 1423�40 318 448 545 626 696 956 1271 1444 1453�30 324 456 556 638 710 975 1296 1472 1482�20 330 464 565 649 722 992 1318 1497 1507�10 335 471 574 659 733 1007 1338 1520 1530

0 339 477 581 667 742 1019 1355 1539 154910 342 482 587 674 749 1030 1368 1554 1564

PM 50 �50 514 722 879 1010 1123 1542 2045 2319 2344�40 525 737 898 1031 1147 1575 2089 2368 2394�30 536 752 916 1051 1169 1606 2129 2415 2440�20 545 765 931 1070 1189 1634 2166 2456 2483�10 553 776 945 1086 1207 1658 2199 2493 2520

0 560 786 957 1099 1222 1679 2226 2524 255110 566 794 967 1110 1234 1696 2249 2550 2577

PM 65 �50 816 1148 1398 1605 1785 2453 3260 3722 3727�40 833 1172 1428 1640 1823 2505 3330 3801 3806�30 850 1195 1456 1672 1859 2554 3395 3876 3881�20 864 1216 1481 1701 1891 2598 3454 3943 3948�10 877 1234 1503 1726 1919 2637 3506 4002 4007

0 888 1249 1522 1748 1943 2670 3550 4052 405710 897 1262 1537 1765 1962 2697 3585 4092 4098

PM 80 �50 1589 2233 2719 3120 3466 4743 6217 6973 7012�40 1623 2281 2777 3186 3540 4844 6349 7122 7162�30 1655 2326 2831 3248 3609 4939 6473 7261 7301�20 1683 2366 2880 3305 3671 5024 6585 7387 7428�10 1708 2401 2923 3354 3726 5100 6684 7498 7539

0 1730 2431 2960 3396 3773 5163 6768 7592 763310 1747 2456 2989 3430 3811 5215 6835 7667 7709

PM 100 �50 2510 3528 4295 4928 5476 7495 9830 11036 11098�40 2564 3604 4387 5034 5593 7655 10040 11272 11335�30 2614 3674 4472 5132 5702 7804 10236 11491 11556�20 2659 3738 4550 5221 5800 7939 10413 11691 11756�10 2699 3794 4618 5299 5887 8058 10569 11866 11932

0 2733 3841 4676 5365 5961 8159 10702 12015 1208210 2760 3879 4722 5419 6021 8241 10808 12134 12202

PM 125 �50 3820 5370 6538 7504 8338 11425 15033 16948 17050�40 3901 5485 6677 7664 8516 11669 15354 17310 17414�30 3977 5591 6807 7813 8682 11897 15653 17647 17753�20 4046 5688 6925 7949 8833 12103 15925 17953 18061�10 4107 5774 7029 8068 8965 12284 16164 18223 18332

0 4158 5846 7117 8169 9078 12438 16366 18451 1856110 4200 5904 7188 8250 9168 12562 16529 18635 18746




tsub K 0 4 10 15 20 25 30 35 40 45

R 717 (NH3) 1.11 1 0.91 0.87 0.80 0.77 0.74 0.71 0.69 0.67


� Danfoss A/S, 09 - 1999 RD.4X.A2.02 17


kg/sCondensing

temp.

tc �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8

Hot gas capacity Gh in kg/sat a pressure drop across valve �p bar

PM 5 25 0.03 0.05 0.06 0.06 0.07 0.09 0.11 0.11 0.1135 0.04 0.05 0.07 0.08 0.08 0.11 0.14 0.15 0.1545 0.05 0.06 0.08 0.09 0.1 0.13 0.17 0.19 0.19

PM 10 25 0.06 0.09 0.11 0.13 0.14 0.18 0.22 0.22 0.2235 0.08 0.11 0.13 0.15 0.16 0.22 0.28 0.29 0.2945 0.09 0.12 0.15 0.17 0.19 0.26 0.34 0.38 0.39

PM 15 25 0.09 0.13 0.16 0.18 0.2 0.27 0.33 0.33 0.3335 0.11 0.15 0.19 0.21 0.24 0.32 0.41 0.44 0.4445 0.13 0.18 0.22 0.25 0.28 0.38 0.5 0.56 0.57

PM 20 25 0.13 0.18 0.22 0.25 0.28 0.38 0.48 0.5 0.535 0.15 0.21 0.26 0.3 0.33 0.45 0.59 0.66 0.6645 0.18 0.25 0.3 0.35 0.39 0.53 0.71 0.82 0.87

PM 25 25 0.23 0.32 0.39 0.44 0.49 0.67 0.86 0.89 0.8935 0.27 0.37 0.45 0.52 0.58 0.79 1.1 1.2 1.245 0.31 0.43 0.53 0.61 0.68 0.94 1.3 1.5 1.5

PM 32 25 0.36 0.5 0.61 0.7 0.77 1 1.3 1.4 1.435 0.42 0.58 0.71 0.82 0.91 1.2 1.6 1.8 1.845 0.48 0.68 0.83 0.95 1.1 1.5 2 2.3 2.4

PM 40 25 0.62 0.87 1.1 1.2 1.4 1.8 2.4 2.4 2.435 0.73 1 1.2 1.4 1.6 2.2 2.9 3.2 3.245 0.85 1.2 1.5 1.7 1.9 2.6 3.4 4 4.2

PM 50 25 1 1.4 1.8 2 2.2 3 3.9 4 435 1.2 1.7 2.1 2.4 2.6 3.6 4.7 5.3 5.345 1.4 2 2.4 2.8 3.1 4.2 5.7 6.5 7

PM 65 25 1.6 2.3 2.8 3.2 3.5 4.8 6.2 6.4 6.435 1.9 2.7 3.3 3.7 4.2 5.7 7.5 8.5 8.545 2.2 3.1 3.8 4.4 4.9 6.7 9 10 11

PM 80 25 3.2 4.5 5.4 6.2 6.9 9.2 12 12 1235 3.7 5.2 6.3 7.3 8.1 11 14 16 1645 4.3 6.1 7.4 8.5 9.5 13 17 20 21

PM 100 25 5 7 8.5 9.8 11 15 18 19 1935 5.9 8.2 10 12 13 17 23 25 2545 6.8 9.6 12 13 15 21 27 31 33

PM 125 25 7.6 11 13 15 17 22 28 29 2935 8.9 13 15 18 19 27 35 39 3945 10 15 18 20 23 31 42 48 51

Hot gas capacity R 22Capacities (continued)

An increase in the hot gastemperature of 10 K based on hotgas temperature of 60�C reducesthe valve capacity approx. 2% andvice versa.

18 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


kg/sCondensing

temp.

tc �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 25 0.03 0.04 0.05 0.06 0.06 0.08 0.08 0.0835 0.04 0.05 0.06 0.07 0.08 0.1 0.1 0.1 0.145 0.04 0.06 0.07 0.08 0.09 0.11 0.13 0.13 0.13

PM 10 25 0.06 0.08 0.1 0.1 0.11 0.14 0.15 0.1535 0.07 0.1 0.11 0.12 0.14 0.18 0.2 0.20 0.245 0.08 0.1 0.13 0.15 0.16 0.22 0.27 0.27 0.27

PM 15 25 0.09 0.11 0.14 0.15 0.17 0.22 0.23 0.2335 0.1 0.13 0.16 0.18 0.2 0.27 0.3 0.30 0.345 0.11 0.15 0.19 0.22 0.24 0.31 0.39 0.39 0.39

PM 20 25 0.16 0.19 0.22 0.25 0.31 0.34 0.3435 0.13 0.19 0.23 0.26 0.29 0.38 0.46 0.46 0.4645 0.15 0.22 0.27 0.3 0.33 0.45 0.57 0.59 0.59

PM 25 25 0.2 0.29 0.34 0.39 0.43 0.56 0.62 0.6235 0.24 0.32 0.4 0.46 0.5 0.67 0.82 0.82 0.8245 0.27 0.38 0.46 0.52 0.58 0.79 1 1.1 1.1

PM 32 25 0.31 0.44 0.53 0.61 0.67 0.87 0.96 0.9635 0.36 0.51 0.62 0.71 0.78 1 1.3 1.3 1.345 0.42 0.59 0.72 0.83 0.91 1.2 1.6 1.6 1.6

PM 40 25 0.55 0.77 0.93 1.1 1.2 1.5 1.7 1.735 0.64 0.89 1.1 1.2 1.4 1.8 2.2 2.2 2.245 0.74 1 1.3 1.4 1.6 2.2 2.8 2.9 2.9

PM 50 25 0.9 1.3 1.5 1.7 1.9 2.5 2.8 2.835 1.1 1.5 1.8 2 2.3 3 3.7 3.7 3.745 1.2 1.7 2.1 2.4 2.6 3.6 4.6 4.8 4.8

PM 65 25 1.4 2 2.4 2.8 3.1 4 4.4 4.435 1.7 2.3 2.8 3.2 3.6 4.8 5.8 5.8 5.845 1.9 2.7 3.3 3.8 4.2 5.7 7.4 7.6 7.6

PM 80 25 2.8 3.9 4.7 5.4 5.9 7.6 8.3 8.335 3.3 4.6 5.5 6.3 7 9.2 11 11 1145 3.8 5.3 6.4 7.3 8.1 11 14 14 14

PM 100 25 6.2 7.4 8.5 9.3 12 13 13 ??35 5.1 7.2 8.7 10 11 15 17 17 1745 5.9 8.3 10 12 13 17 22 23 23

PM 125 25 6.7 9.4 11 13 14 19 20 2035 7.8 11 13 15 17 22 27 27 2745 9.1 13 15 18 20 26 34 35 35

Hot gas capacity R 134aCapacities (continued)


� Danfoss A/S, 09 - 1999 RD.4X.A2.02 19


kg/sCondensing

temp.

tc �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 25 0.04 0.06 0.07 0.08 0.09 0.11 0.14 0.14 0.1435 0.05 0.07 0.08 0.09 0.1 0.14 0.18 0.2 0.245 0.05 0.08 0.09 0.11 0.16 0.22 0.25 0.26 0.26

PM 10 25 0.08 0.11 0.13 0.16 0.18 0.23 0.29 0.29 0.2935 0.09 0.13 0.17 0.19 0.21 0.28 0.35 0.38 0.3845 0.11 0.16 0.19 0.22 0.24 0.33 0.43 0.48 0.51

PM 15 25 0.11 0.16 0.2 0.23 0.25 0.34 0.42 0.43 0.4335 0.13 0.2 0.24 0.27 0.3 0.4 0.52 0.57 0.5745 0.15 0.23 0.27 0.31 0.35 0.47 0.63 0.71 0.74

PM 20 25 0.16 0.23 0.28 0.32 0.35 0.47 0.62 0.65 0.6535 0.19 0.27 0.32 0.37 0.41 0.57 0.74 0.84 0.8545 0.22 0.31 0.38 0.43 0.48 0.67 0.9 1 1.1

PM 25 25 0.28 0.4 0.48 0.56 0.62 0.83 1.1 1.2 1.235 0.33 0.46 0.57 0.65 0.72 0.99 1.3 1.5 1.545 0.38 0.54 0.66 0.76 0.84 1.2 1.6 1.8 2

PM 32 25 0.44 0.62 0.75 0.87 0.96 1.3 1.7 1.8 1.835 0.52 0.72 0.89 1 1.1 1.5 2 2.3 2.445 0.6 0.84 1 1.2 1.3 1.8 2.5 2.8 3.1

PM 40 25 0.77 1.1 1.3 1.5 1.7 2.3 3 3.2 3.235 0.91 1.3 1.5 1.8 2 2.7 3.6 4.1 4.245 1.1 1.5 1.8 2.1 2.3 3.2 4.3 5 5.4

PM 50 25 1.3 1.8 2.2 2.5 2.8 3.8 4.9 5.2 5.235 1.5 2.1 2.5 2.9 3.3 4.5 5.9 6.7 6.945 1.7 2.5 3 3.4 3.8 5.3 7.1 8.2 9

PM 65 25 2 2.8 3.5 4 4.4 6 7.8 8.3 8.335 2.4 3.3 4 4.7 5.2 7.1 9.5 11 1145 2.8 3.9 4.7 5.4 6.1 8.4 11 13 14

PM 80 25 3.9 5.5 6.7 7.7 8.5 12 15 16 1635 4.6 6.5 7.9 9 10 14 18 20 2145 5.4 7.5 9.2 11 12 16 22 25 27

PM 100 25 6.2 8.8 11 12 13 18 23 25 2535 7.3 10 12 14 16 22 29 33 3345 8.5 12 15 17 19 26 34 39 42

PM 125 25 9.5 13 16 19 21 28 36 38 3835 11 16 19 22 24 33 44 49 5045 13 18 22 25 28 39 52 60 65

Hot gas capacity R 404ACapacities (continued)


20 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


kg/sCondensing

temp.

tc �C

Type

0.2 0.4 0.6 0.8 1 2 4 6 8


PM 5 25 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.0535 0.02 0.02 0.03 0.03 0.03 0.05 0.06 0.06 0.0645 0.02 0.03 0.03 0.04 0.04 0.06 0.07 0.08 0.08

PM 10 25 0.03 0.04 0.04 0.05 0.06 0.07 0.09 0.09 0.0935 0.03 0.04 0.05 0.06 0.07 0.09 0.12 0.12 0.1245 0.04 0.05 0.06 0.07 0.09 0.11 0.14 0.16 0.17

PM 15 25 0.04 0.05 0.06 0.07 0.08 0.11 0.13 0.14 0.1435 0.04 0.06 0.08 0.09 0.1 0.13 0.17 0.18 0.1845 0.05 0.07 0.09 0.1 0.11 0.16 0.21 0.23 0.25

PM 20 25 0.05 0.07 0.09 0.1 0.11 0.15 0.2 0.2 0.235 0.06 0.09 0.11 0.12 0.14 0.19 0.24 0.28 0.2845 0.07 0.1 0.12 0.14 0.16 0.22 0.3 0.34 0.37

PM 25 25 0.09 0.13 0.16 0.18 0.2 0.27 0.35 0.36 0.3635 0.11 0.15 0.19 0.21 0.24 0.33 0.43 0.49 0.4945 0.13 0.18 0.22 0.25 0.28 0.38 0.52 0.61 0.66

PM 32 25 0.14 0.2 0.25 0.28 0.31 0.42 0.54 0.56 0.5635 0.17 0.24 0.29 0.33 0.37 0.51 0.67 0.76 0.7745 0.20 0.28 0.34 0.39 0.44 0.6 0.81 0.94 1

PM 40 25 0.25 0.35 0.43 0.49 0.55 0.74 0.96 0.99 0.9935 0.30 0.42 0.51 0.58 0.65 0.89 1.2 1.3 1.445 0.35 0.49 0.6 0.68 0.76 1.1 1.4 1.7 1.8

PM 50 25 0.42 0.58 0.71 0.81 0.9 1.2 1.6 1.6 1.635 0.49 0.69 0.84 0.96 1.1 1.5 2 2.2 2.245 0.57 0.81 0.98 1.1 1.3 1.7 2.4 2.7 3

PM 65 25 0.66 0.93 1.1 1.3 1.4 2 2.5 2.6 2.635 0.78 1.1 1.3 1.5 1.7 2.3 3.1 3.5 3.645 0.91 1.3 1.6 1.8 2 2.8 3.7 4.4 4.8

PM 80 25 1.3 1.8 2.2 2.5 2.8 3.7 4.8 4.9 4.935 1.5 2.1 2.6 3 3.3 4.5 5.9 6.6 6.745 1.8 2.5 3 3.5 3.9 5.4 7.2 8.3 8.9

PM 100 25 2 2.9 3.5 4 4.4 5.9 7.5 7.8 7.835 2.4 3.4 4.1 4.7 5.2 7.1 9.4 11 1145 2.8 3.9 4.8 5.5 6.1 8.5 11 13 14

PM 125 25 3.1 4.3 5.3 6 6.7 9 12 12 1235 3.6 5.1 6.2 7.1 7.9 11 14 16 1645 4.3 6 7.3 8.4 9.3 13 17 20 22

Hot gas capacity R 717 (NH3)Capacities (continued)


� Danfoss A/S, 09 - 1999 RD.4X.A2.02 21

PM 20 0.1 5.2 6.3 7.6 8.9 10.1 11.3 12.30.15 6.3 7.8 9.3 10.9 12.4 13.8 15.10.2 7.3 9.0 10.7 12.5 14.3 15.9 17.40.25 8.1 10.0 12.0 14.0 16.0 17.8 19.50.3 8.9 11.0 13.1 15.3 17.5 19.5 21.3

PM 25 0.1 7.8 9.6 11.5 13.5 15.3 17.1 18.70.15 9.6 11.8 14.1 16.5 18.8 21.0 22.90.2 11.1 13.6 16.3 19.0 21.7 24.2 26.50.25 12.4 15.2 18.2 21.3 24.3 27.1 29.60.3 13.6 16.7 20.0 23.3 26.6 29.7 32.4

PM 32 0.1 11.8 14.5 17.4 20.3 23.2 25.8 28.30.15 14.5 17.8 21.3 24.9 28.4 31.6 34.60.2 16.7 20.6 24.6 28.7 32.7 36.5 40.00.25 18.7 23.0 27.5 32.1 36.6 40.8 44.70.3 20.5 25.2 30.2 35.2 40.1 44.7 48.9

PM 40 0.1 20.6 25.3 30.4 35.4 40.4 45.1 49.30.15 25.2 31.0 37.2 43.4 49.5 55.2 60.30.2 29.1 35.8 42.9 50.1 57.1 63.7 69.70.25 32.6 40.1 48.0 56.0 63.9 71.2 77.90.3 35.7 43.9 52.6 61.4 70.0 78.0 85.3

PM 50 0.1 29.5 36.3 43.5 50.8 57.9 64.6 70.60.15 36.2 44.5 53.3 62.2 70.9 79.1 86.50.2 41.8 51.4 61.6 71.8 81.9 91.3 99.90.25 46.7 57.4 68.8 80.3 91.5 102.0 112.00.3 51.2 62.9 75.4 88.0 100.0 112.0 122.0

PM 65 0.1 54.9 67.6 81.0 94.5 108 120 1310.15 67.3 82.8 99.2 116 132 147 1610.2 77.7 95.6 115 134 152 170 1860.25 86.9 107 128 149 170 190 2080.3 95.2 117 140 164 187 208 228

PM 80 0.1 96.8 119 143 167 190 212 2320.15 119 146 175 204 232 259 2840.2 137 168 202 236 268 299 3280.25 153 188 226 263 300 335 3660.3 168 206 247 288 329 367 401

PM 100 0.1 141 173 208 242 276 308 3370.15 172 212 254 297 338 377 4120.2 199 245 293 342 390 435 4760.25 223 274 328 383 436 487 5320.3 244 300 359 419 478 533 583

PM 125 0.1 226 278 333 389 443 494 5400.15 277 340 408 476 542 605 6620.2 320 393 471 550 626 699 7640.25 357 440 527 614 700 781 8540.3 391 481 577 673 767 856 936


kW

�50 �40 �30 �20 �10 0 +10Type

Press. dropacross valve

�p bar

Capacity in kW at a circulation rate of 4:1 at evaporating temperature te

R 22

Capacities for pump circulation

Circulation rate

2 4 6 8 10Refrigerant

1.28 1.0 0.86 0.75 0.68R 22

Correction factor for circulation rate


The evaporator capacity is to be multiplied bythe correction factor.

22 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


kW

�50 �40 �30 �20 �10 0 +10Type


�p bar


R 134aPM 20 0.1 4.2 5.2 6.2 7.3 8.4 9.4 10.4

0.15 5.2 6.4 7.7 8.9 10.2 11.5 12.70.2 6.0 7.3 8.8 10.3 11.9 13.3 14.80.25 6.6 8.2 9.8 11.5 13.2 14.9 16.40.3 7.3 9.0 10.8 12.6 14.5 16.3 18.0

PM 25 0.1 6.4 7.9 9.5 11.0 12.7 14.3 15.80.15 7.8 9.7 11.6 13.6 15.6 17.5 19.30.2 9.0 11.2 13.4 15.7 18.0 20.3 22.30.25 10.1 12.5 15.0 17.5 20.2 22.7 25.00.3 11.0 13.7 16.4 19.2 22.1 24.8 27.4

PM 32 0.1 9.6 11.9 14.3 16.7 19.2 21.6 23.90.15 11.9 14.6 17.5 20.5 23.5 26.4 29.30.2 13.7 16.8 20.2 23.6 27.1 30.5 33.70.25 15.2 18.8 22.6 26.4 30.4 34.2 37.80.3 16.7 20.6 24.7 28.9 33.2 37.4 41.4

PM 40 0.1 16.8 20.8 25.0 29.2 33.5 37.7 41.60.15 20.6 25.4 30.5 35.8 41.0 46.1 51.00.2 23.8 29.4 35.3 41.3 47.3 53.3 58.90.25 26.6 32.9 39.4 46.1 52.9 59.5 65.90.3 29.2 36.0 43.2 50.5 58.0 65.3 72.1

PM 50 0.1 24.1 29.8 35.8 41.9 48.0 54.0 59.60.15 29.5 36.5 43.7 51.2 58.8 66.1 73.10.2 34.1 42.1 50.5 59.2 67.8 76.3 84.40.25 38.2 47.0 56.4 66.1 75.8 85.3 94.30.3 41.8 51.6 61.8 72.5 83.0 93.5 103.3

PM 65 0.1 44.9 55.4 66.5 77.8 89.3 100.4 111.00.15 55.0 67.8 81.4 95.3 109.3 123.6 135.60.2 63.5 78.4 94.0 110.0 126.0 141.6 157.20.25 71.0 87.6 105.0 123.6 141.6 158.4 175.20.3 77.8 96.0 115.1 134.4 154.8 174.0 192.0

PM 80 0.1 79.1 97.7 117.1 136.8 157.2 177.6 195.60.15 97.0 119.5 142.8 168.0 193.2 217.2 240.00.2 112.0 138.0 165.6 194.4 222.0 250.8 277.20.25 124.8 154.8 184.8 217.2 248.4 279.6 309.60.3 136.8 169.2 202.8 237.6 272.4 307.2 338.4

PM 100 0.1 115.1 141.6 170.4 199.2 229.2 256.8 284.40.15 140.4 174.0 208.8 244.8 279.6 315.6 348.00.2 163.2 200.4 241.2 282.0 324.0 363.6 402.00.25 182.4 224.4 268.8 315.6 361.2 406.8 450.00.3 199.2 246.0 295.2 345.6 396.0 445.2 493.2

PM 125 0.1 184.8 228.0 273.6 320.4 367.2 412.8 456.00.15 225.6 278.4 334.8 392.4 450.0 506.4 559.20.2 261.6 321.6 386.4 452.4 519.6 584.4 645.60.25 291.6 360.0 432.0 506.4 580.8 652.8 722.40.3 320.4 394.8 472.8 554.4 636.0 715.2 790.8


Circulation rate


1.28 1.0 0.86 0.76 0.69R 134a




� Danfoss A/S, 09 - 1999 RD.4X.A2.02 23


kW

�50 �40 �30 �20 �10 0 +10Type


�p bar


R 717 (NH3)


PM 20 0.1 11.3 14.3 17.7 21.4 25.2 29.1 33.10.15 13.8 17.6 21.7 26.2 30.9 35.7 40.50.2 16.0 20.3 25.1 30.2 35.7 41.2 46.70.25 17.9 22.7 28.0 33.8 39.9 46.1 52.30.3 19.6 24.8 30.7 37.0 43.7 50.5 57.3

PM 25 0.1 17.2 21.8 26.9 32.5 38.3 44.3 50.20.15 21.0 26.7 33.0 39.8 46.9 54.3 61.50.2 24.3 30.8 38.1 45.9 54.2 62.7 71.10.25 27.1 34.5 42.6 51.4 60.6 70.0 79.40.3 29.7 37.8 46.6 56.3 66.4 76.7 87.0

PM 32 0.1 25.9 32.9 40.6 49.0 57.8 66.8 75.80.15 31.7 40.3 49.8 60.0 70.8 81.9 92.80.2 36.6 46.5 57.5 69.3 81.8 94.5 107.00.25 41.0 52.0 64.2 77.5 91.4 106.0 120.00.3 44.9 57.0 70.4 84.9 100.0 116.0 131.0

PM 40 0.1 45.2 57.4 70.9 85.5 101.0 117.0 132.00.15 55.3 70.3 86.8 105.0 124.0 143.0 162.00.2 63.9 81.1 100.0 121.0 143.0 165.0 187.00.25 71.4 90.7 112.0 135.0 159.0 184.0 209.00.3 78.3 99.3 123.0 148.0 175.0 202.0 229.0

PM 50 0.1 64.8 82.2 102.0 123.0 145.0 167.0 190.00.15 79.3 101.0 124.0 150.0 177.0 205.0 232.00.2 91.6 116.0 144.0 173.0 204.0 236.0 268.00.25 102.0 130.0 161.0 194.0 229.0 264.0 300.00.3 112.0 142.0 176.0 212.0 250.0 289.0 328.0

PM 65 0.1 120 153 189 228 269 311 3530.15 148 187 231 279 329 381 4320.2 170 216 267 322 380 440 4990.25 191 242 299 360 425 492 5570.3 209 265 327 395 466 538 611

PM 80 0.1 212 270 333 402 474 548 6210.15 260 330 408 492 581 671 7610.2 300 381 471 568 670 775 8790.25 336 426 527 635 749 866 9830.3 368 467 577 696 821 949 1076

PM 100 0.1 309 392 484 584 689 797 9030.15 378 480 593 715 844 976 11070.2 437 554 685 826 975 1127 12780.25 488 620 766 924 1090 1260 14290.3 535 679 839 1012 1194 1380 1565

PM 125 0.1 496 629 777 937 1106 1279 14500.15 607 770 952 1148 1355 1566 17760.2 701 890 1099 1326 1564 1808 20510.25 784 995 1229 1482 1749 2022 22930.3 858 1090 1346 1624 1916 2215 2511

Circulation rate


1.25 1.0 0.88 0.80 0.73R 717 (NH3)




24 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet PM main valves

DesignFunction

The maximum pressure, p2, that can be built upon the top of the servo piston (24) normallycorresponds to the pressure, p1, acting on theregulator inlet side.Inlet pressure p1 is led, via the drilled channels(1a, 40a, 40b, 40c, 40d) in the valve body (1)and cover (40) through the individual pilot valvesand on to the top of the servo piston (24).The degree of opening of the individual pilotvalves determines the size of pressure p2 andthus the degree of opening of the regulator, i.e.the equalization hole (21a) in the servo piston(24) ensures that pressure p2 is balanced inaccordance with the degree of opening of thepilot valve.

Note:When main valve type PM 3 is used with anexternal pilot connection (61), the internal pilotpressure will be shut off.

The PM 1 main valve can be fitted with just onescrewed-on pilot valve. The degree of openingof the main valve will be in accordance with thecontrol status from the pilot valve.The PM 1 is completely closed when the pilotvalve is completely closed and completely openwhen the pilot valve is completely open.Otherwise the degree of opening of the mainvalve is proportional to the degree of opening ofthe pilot valve.

PM1

The PM regulator is a servo-controlled mainvalve whose function is determined by the pilotvalve used. The main valve with pilot valve(s)controls refrigerant flow by modulation or on/offin accordance with the pilot valve status.The degree of opening of the PM is determinedby the pressure difference (differential pressure)between pressure p2, which acts on the top ofthe servo piston (24), and pressure p3, whichacts on the underside of the servo piston.If this pressure difference is 0, the regulator willbe completely closed.If this pressure difference is 0.2 bar or more, theregulator will be fully open.At pressure differences (p2-p3) between 0.07and 0.2 bar, the degree of opening will becorrespondingly proportional.The shape of the throttling cone (12) islogarithmic, which gives an ideal regulationcharacteristic to servo-operated regulators.Because of the channel (1b) in the valve body,pressure p3 acting on the underside of the servopiston (24) is equal to the regulator dischargepressure p4.The degree of opening of the regulator is thuscontrolled by applying a pressure, p2, on the topof the servo piston which is equal to or greaterthan the discharge pressure, p4.p2 = p4 � closedp2 = p4 + 0.2 bar � completely openp4 � p2 � p4 + 0.2 bar � proportional degree ofopening.

PM3

PM 1 and PM 31. Valve body

1a and 1b. Channels in valve body110. Valve spindle11. Teflon valve plate12. Throttling cone21a.Equalization hole

in servo piston 2422. Locking ring24. Servo piston24a.Gasket30. Bottom cover33. Strainer36. Plug40. Cover40a, b, c and d. Channels

in cover 4044. Pressure gauge connection60. Manual operating spindle61. External pilot connectionS I, S II. Pilot valve connections

in series connection holesP. Pilot valve connection

in parallel connection hole

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 25


The PM 3 main valve can be fitted with eitherone, two, or three pilot valves so that up to threeregulating functions are possible.The relations between the functions of thescrewed-in pilot valves is as follows:A. The pilot valves fitted in ports SI and SII are

connected in series.The PM 3 main valve will be completelyclosed if just one of the series-connectedpilot valves is closed. The main valve willonly be able to open if both pilot valves arecompletely open at the same time.

B. The pilot valve fitted in port P is connectedin parallel to the pilot valves in ports SI andSII.

The PM 3 main valve will be completely open ifthe pilot valve in P is completely open,irrespective of the degree of opening of the SI orSII pilot valves.The PM 3 main valve will be completely closed ifthe pilot valve in P is completely closed and atleast one of the pilot valves in SI or SII iscompletely closed at the same time.The relation between the pilot valves in ports SI,SII and P is shown in the table below.

DesignFunction(continued)

If the PM 3 is not fitted with three pilot valves,the unused port(s) must be sealed off with ablanking plug.If the blanking plug is fitted as an assembledunit, A + B, the channels from the portconcerned will be closed.If only the top part A, of the plug is fitted, thechannels from the ports in question will be open.If the degree of opening of the PM regulator isnot to be a function of the regulator inletpressure, or if more than three regulatingfunctions are required, ports SI, SII, or P can befitted with a nipple for the connection of externalpilot pressure. This applies to both PM 1 andPM 3.Pressure p2 on top of the servo piston will thenbe determined by the pressure to which theexternal pilot line is connected. The regulatorfunction will be determined by the pilot valvesthat are fitted in that external pilot line. Thepilot valves can be used in this arrangementtoo, but each pilot valve must then be fitted ina separate valve body.

Depending on the function of the pilot valves,the PM regulating characteristic becomes:

on/offproportionalintegral orcascade.

PM regulators are therefore especially suitablefor all forms of temperature and pressureregulating systems.

Pilot valve

SI SII P

Open Open Closed Open

Open Open Open Open

Open Closed Closed Closed

Open Closed Open Open

Closed Open Closed Closed

Closed Open Open Open

Closed Closed Closed Closed

Closed Closed Open Open

PM 3main valve

Externalpilot connection

Blanking plugA + B

Pressure gauge connectionsolder / weld

Pressure gauge connectionflare

Blanking plug APilot valve body CVHExternal pilot connectionA1. O-ringA2. Gasket

26 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

Data sheet Pilot valves for direct mounting into PM main valve

DesignFunction (continued)

CVP (LP)

CVP (HP)

CVT

CVQ CVPM EVM

CVPP (LP)

CVPP (HP)

CVC

CVP and CVPPA1. O-ringA2. Gasket

1. Protective cap3. Gasket4. Nut6. Nipple7. Union nut8. Seal9. Ball socket

10. Diaphragm11. Thrust pad12. Spring guide13. Flange14. Orifice15. Base17. Valve body18. Cover bolt20. Setting spindle21. Screw (M 6 x 10)22. Cover gaskets24. Spring28. Spring

CVT2. Setting ring4. Gasket5. O-ring9. Locking ring

10. Thermostatic element11. Spring12. Diaphragm

CVC43. Gasket44. Blanking plug for pressure

gauge connection81. Seal82. O-ring

103. Banjo fitting104. O-ring105. Protective cap106. O-ring107. Signal connection108. Pilot orifice109. Connector on banjo fitting 103110. Diaphragm111. Spring112. Setting spindle

CVQ1. Cover2. Connection terminals3. NTC resistor4. PTC resistor (heating element)5. Reservoir6. Diaphragm7. Capsule8. Gasket9. Orifice

CVPMA1. O - ringA 2. Gasket

2. Shaft seal4. Push rod

14. Spring15. Base22. Gaskets23. Diaphragm35. Bushing38. Valve body

EVM1. Coil2. Armature3. Armature tube4. Gasket5. O-ring6. Sealing ring7. Spacing ring8. Top nut9. Lock button

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 27


Dimensions and weights

PM 3PM 1

PM 1 and PM 3valve size

H1 H2 H3 H4 L L1 L2 L3 L4 B1 B2 B3mm mm mm mm mm mm mm mm mm mm mm mm

Oval5 � 25 66 162 79 101 177 106 52 94 89 75 87flange

32 72 178 96 118 240 170 52 94 89 84 82 94

40 79 187 105 127 254 170 55 97 92 94 89 102

50 95 205 123 144 288 200 55 97 92 104 106 113

65 109 227 146 167 342 250 60 102 97 127 113 135

80 152 365 214 238 437 310 69 115 119 190 235 210

100 173 396 246 269 489 350 83 125 133 226 270 243

125 208 453 301 325 602 455 99 151 155 261 300 286

Pressure gaugeconnection,1/4 NPT

Pressure gaugeconnection,flare

External pilot connection

Pressure gaugeconnection,self closing

Pressure gauge connectionPressure gaugeconnection,cutting ring connection

Size A B L M

6 mm 19 14 39 27

10 mm 19 19 40 29

Cutting ring connection

WeightPM 1 with flanges but PM 3 with flanges but Flange set for

Valve size without pilot valves without pilot valves PM 1 and PM 3kg kg kg

5 � 25 6.5 7.0 1.132 10.8 11.3 1.540 13.7 14.0 1.950 19.5 19.8 2.865 28.0 28.3 3.380 80100 120125 170

28 RD.4X.A2.02 � Danfoss A/S, 09 - 1999

CVPP, LP


Dimensions and weights (continued)

CVPM + CVHCVP (M)

CVC CVQEVM

CVPP, HPCVP, LPCVP, HP

Pilot valve type Weight (kg)CVP. LP 0.4CVP. HP 1.7CVPP. LP 0.5CVPP. HP 1.7CVPM 4.9CVT/CVTO 0.8CVC 0.7EVM 0.5CVQ 0.4

Pilot valve body type Weight (kg)CVH 0.3

CVT /CVTO

� Danfoss A/S, 09 - 1999 RD.4X.A2.02 29


30 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


� Danfoss A/S, 09 - 1999 RD.4X.A2.02 31


32 RD.4X.A2.02 � Danfoss A/S, 09 - 1999


Data sheet Pressure and temperature regulators, type PM ...

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