MULTI-ORIFICE VALVE
Gas Lift Water Injection
Enhanced Oil Recovery
Throttling Valve
High DP Valve
Motor Operated Valve
Manual and Automated Applications
Taylor ValveTechnology, Inc
JUL10-TVT-OKC
MD SERIESPRODUCTION
CHOKES
Taylor ValveTechnology, Inc
SERIES MDMOV Choke
Principle of Operation
Full Open Throttling Closed
When the front disc is rotated,changing the alignment andrelationship to the fixed back disc,the flow area and orifice size areaffected, the result either increaseor decrease in flow.
Taylor Valve Technology Multi Orifice Valve design principle provides precisioncontrol. The two adjacent internal discs each contain two precision orifices.
When the holeson both discs arealigned the valve isFull Open Position.
When the front discois rotated a full 90
(one quarter turn),the valve is in thefull closed position.
The discs are lapped to within two light bands of flatness (+/- .00002”) to achieve positive shut off and maintain precise control. The fixed back disc is held perpendicular to the flow. The front disc floats against the back disc and seeks a mating surface promoting a positive seal. The differential pressure across the upstream disc and stabilizes the control surfaces. Vibration, noise or fatigues normally associated with loose or unsupported parts is eliminated.No control surfaces are introduced into the orifice, providing a clear center line for flow. The valves are rated for shut-off at ANSI Class III or IV depending on the style of valve and trim used. The orifices of the standard disc expose a small control surface profile to the fluid stream reducing wear. The multi-orifice design produces near linear flow characteristics. The low torque and quarter-turn design of Taylor Valve Technology’s Multi-orifice Valves allows for a variety of actuation options; manual, pneumatic, hydraulic, or electric.
page 2
Taylor ValveTechnology, Inc
Accurate control - 90 Degree rotation from Full Off to Full On
Bolted Bonnet - Safety Bonnet is bolted into the body, it avoids the well-known risks of corrosion, cross threading,
galling of threaded type connection in production environments.
Safety Body Pressure Bleed Valve - The potential for buildup or trapped pressure is eliminated by the installation
of a high pressure stainless steel bleed valve installed in accordance with the requirements of API6A.
Extended Mean time between Service - Robust design and liberal application of hardened materials, efficien
flow-geometry means the valves offer maximum production potential and minimum service requirements.
Easy maintenance - Choke Valves are designed with special actuator mounting systems so the choke can
be maintained.
Optional features - Choke Valves can have trims and actuators custom designed for specific requirements, such
as, special trims for noise reduction and sand control, reduced port and maximum orifice trims are available for very
high pressure or minimum pressure loss for a declining field
FEATURES
APPLICATIONS
Well Site Automation
Water Injection Control Valve
CO Injection Control Valve2
Pump Bypass
Pump Startup
Gas Lift Injection Control
Blow Down and Dump Valve
Remote Control for directional drilling
ApplicatiobPicture
page 3
SERIES MDMOV Choke
Taylor ValveTechnology, Inc
SERIES MDIMulti-Orifice Choke
MDI Valve Design Features
Protective cage
Cross section of wearresistant material toextend service life
Precision Orifices
Fully Guided Stemreduces imblanceand vibration
Redundant O-RingBonnet Seals
Redundant O-RingStem Seals with Backup rings
Optional Actuator
Mounting Bracketand adapter
Control Discs provideASME Class III/IVShut off
MDI Positive Bean Choke
Manual MDI
page 4
Available Sizes1 Inch2 Inch3 Inch
Taylor ValveTechnology, Inc
MODEL MDIMOV ChokeParts Diagram
1
2
3
20
4
5
66
789
9
10
10
11
12
12
13
13
14
15
16
17
18
19
12345678910111213141516171819202122
1111111121122121111612
HandleLock NutTurning HubCalibration LabelBonnetO-RingThrust BearingRetainer SpringBackup RingO-RingTurning ForkDowel PinControl DiscO-RingDowel PinCageO-RingWear SleeveBodyBonnet BoltsData PlateDrive Screw
Key Description Qty
2221
page 5
EXPLODED VIEW
Taylor ValveTechnology, Inc
page 6
MODEL MDIMOV ChokeSpecifications
Inlet and Outlet FACE TO FACE DIMENSION WeightConnections In mm Lbs Kg
1” Female NPT 8.0 203 20 9.1
2” Female NPT 8.0 203 24 10.9
2” Sch 80 Bevel Weld 7.875 200 23 10.5
2” ANSI CLASS 600 RF 14.125 359 44 20
2” ANSI CLASS 600 RTJ 14.125 359 44 20
2” ANSI CLASS 900 RF 16.5 419 72 32.7
2” ANSI CLASS 900 RTJ 16.5 419 72 32.7
2” ANSI CLASS 1500 RF 16.5 419 72 32.7
2” ANSI CLASS 1500 RTJ 16.5 419 72 32.7
2.06” API 2000 RTJ 14.125 359 44 20
2.06” API 3000 RTJ 16.5 419 72 32.7
Orifices Size 0.5” 0.168” 0.250” 0.375” 0.500” 0.625” 0.750”
Cv 0.8 2.0 3.0 6.7 9.2 16.10 31.0
Diameter of One Orifice in InchesTrim Size and Maximum CV
Dimensions and Weights
11
2221
123
4
5
6
7
89
9
10
10
12
18
17
16
15
14
13
20
19
page 7
Taylor ValveTechnology, Inc
MODEL MDAMOV ChokeParts Diagram
2121111612
Key Description Qty
123456789101112
13141516171819202122
111111112112
HandleLock NutTurning HubCalibration LabelBonnetO-RingThrust BearingRetainer SpringBackup RingO-RingTurning ForkDowel Pin
Control DiscO-RingDowel PinCageO-RingWear SleeveBodyBonnet BoltsData PlateDrive Screw
Key Description Qty
EXPLODED VIEW
page 8
Available Sizes
Taylor ValveTechnology, Inc
MODEL MDAMOV ProductionChoke
1 Inch2 Inch3 Inch
MDA Positive Bean Choke
Cross section of wear
Fully Guided Stemreduces imblanceand vibration
Redundant O-RingBonnet Seals
Protective cage
resistant material toextend service life
Automated MDI
Redundant O-RingStem Seals with Backup rings
Control Discs provideASME Class III/IVShut off
MDI Valve Design Features
Taylor ValveTechnology, Inc
MD SeriesMOV ChokePart Numbering System
NOMINAL BORE
SERVICE00 STANDARD 01 NACE 02 STEAM HIGH TEMP03 WET CO-204 LOW TEMP/SOUR 06 FULL SS08 SALT WATER
BODY MATERIAL01 CARBON STEEL02 COATED STEEL03 410 STAINLESS STEEL04 DUPLEX STAINLESS
SEAL MATERIAL00 SPECIAL01 BUNA N / NBR02 POLYURTHANE03 EPT/ EPOM04 FLUOROCARBON
05 METAL/FIBER06 NEOPREME / CR07 PEROXIDE CURED NBR08 STEAM SEALS09 PTFE
NO
MIN
AL
BO
RE
TY
PE
SE
RV
ICE
AC
TU
AT
OR
EN
D C
ON
NE
CT
ION
S
BO
DY
MA
TE
RIA
L
SE
AL
DIS
C S
IZE
DIS
C/W
EA
R S
LE
EV
E M
AT
ER
IAL
MD ___-___-___-___-___-___-___-___-___
ACTUATOR0 MANUAL HANDLE1 MANUAL GEAR2 ELECTRIC3 PNEUMATIC4 HYDRAULIC5 CS ACTUATOR BRACKET6 SS ACTUATOR BRACKET7 POSITIVE BEAN
DISC/SLEEVE
00 CERAMIC / 17-4 H900 SS02 CARBIDE / 17-4 H900 SS03 CARBIDE / STELLITE04 CERAMIC / STELLITE05 CARBIDE / CARBIDE15 CERAMIC / NO SLEEVE16 CARBIDE / NO SLEEVE47 POS BEAN / 17-4 H900 SS
DISC SIZE01 (2) 1/8 RND PORTS02 (2) 3/16 RND PORTS03 (2) 1/4 RND PORTS04 (2) 3/8 RND PORTS05 (2) 1/2 RND PORTS06 (2) 5/8 PIE PORTS07 (2) 3/4 RND PORTS08 (2) 7/8 RND PORTS09 (2) 1.0 PIE PORTS10 (2) 1- 3/16 RND PORTS11 (2) 1 - 1/4 RND PORTS
END CONNECTIONS01 1” FNPT02 2” FNPT03 2” BUTT WELD SCH8004 2” BUTT WELD SCH16007 2” ANSI 600# RFF08 2” ANSI 600# RTJ14 2” ANSI 900# RFF15 2” ANSI 900# RTJ16 2” ANSI 1500# RFF17 2” ANSI 1500# RTJ18 3” BUTT WELD XXH21 1” NATIONAL GROOVE26 4” ANSI 600# RFF27 1” ANSI 1500# RTJ28 2” VICTAULIC ES29 3” ANSI 300# RTJ31 3” ANSI 600# RTJ32 2” NATIONAL GROOVE33 4” ANSI 1500# RTJ36 3” FNPT37 3” ANSI 900# RFF38 3” ANSI 600# RFF42 ½”SOCKET WELD
1 1 Inch2 2 Inch3 3 Inch
Valve Type I Inline BodyIS Inline Steam BodyA Angle BodyAS Angle Steam Body
43 3” ANSI 900# RTJ44 3” ANSI 1500# RTJ47 1” ANSI 600# RTJ48 1” ANSI 600# RFF54 3” ANSI 1500# RFF55 1” ANSI 1500# RFF58 4” ANSI 600# RFF63 2” SOCKET WELD65 4” ANSI 900# RFF67 1” VICTAULIC ES68 3” ANSI 300# RTJ69 1” BUTT WELD SCH8070 1” SOCKET WELD74 4” ANSI 900# RTJ91 4” ANSI 1500# RFF103 3” SOCKET WELD121 3” BUTT WELD SCH80125 3” BUTT WELD SCH160131 4” VICTAULIC ES
NOTE: For many other 1”, 2” and 3” connections consult factory
NOTE: For positive bean sizes consult factory
page 9
PRESSURE DROP (DP)
2
ACROSS CHOKE (PSI)
3
4
6
8
5
10
30
405060
80100
20
200
300
400500600
8001000
2000
3000
400050006000
800010000
WATER FLOW IN BBL/DAY
27500
17200
122009400
77005500
39003000
24501740
1230
870
615
435
310220
157122
86
60
42
27
20
3040
6080
100
200
300400
500600
8001000
15002000
30004000
60008000
10000
1500020000
3000040000
5000070000
100000
200
160
140
120
100
80
70
60
50
40
30
2422
201816
14
12
109
8
7
6
5
4
3
11
13
15
17
19
2123
35
25
45
55
65
75
90
110
130
150
175
EXAMPLEPRESSURE DROP DP 500 PSI, WATER FLOW RATE3000 B/D FOR SINGLE ORIFICE CHOKE OR 2310 B/DDOUBLE ORIFICE CHOKE READ BEAN SIZE 30
NOTE: P1-P2 = DPWHEN P1 = UPSTREAM PRESSURE P2 = DOWNSTREAM PRESSURE DP = PRESSURE DROP ACROSS THE CHOKE
DO
UB
LE
OR
IFIC
E C
HO
KE
SIN
GL
E O
RIF
ICE
CH
OK
E
BEAN SIZEIN 64THS
Taylor ValveTechnology, Inc
ESTIMATOR FORFLOW RATE
NOMOGRAPH FOR WATER
page 10
Taylor ValveTechnology, Inc
4000
3000
2000
1000900
800700
600
400
300
200
100
90
8070
6050
40
30
20
10
1500
500
UPSTREAM PRESSURE (PSI) NATURAL GAS INMSCFD
10000080000
60000
30000
100006000
50004000
30002000
1500
1000 800600 500400
300
200150
10080
60 50
40
3020
108
64
2
1
40000
BEAN SIZEIN 64THS
200175
160160
160160
160
160160
160160
160160
160160
5550
30
25 2423
22
1514
1312
109
8
7
6
5
4
3
2
4540
35
21201918
1716
11
EXAMPLEUPSTREAM PRESSURE OF 70 PSI, BEAN SIZE 40,AND GAS FLOW RATE OF 600 MCF PER DAYNOTE: UPSTREAM PRESSURE MUST BE TWOTIMES DOWNSTREAM PRESSURE (KNOWN ASCRITICAL FLOW)
NOMOGRAPH FOR GAS
ESTIMATOR FORFLOW RATE
page 11
C =V
C =V
C =V
Q / (1360 * P * Y)1
Q / (19.3 * P * Y)1
W / (63.3 * Y)
G * TG
X * M
ÄP
T
V1
page 12
Taylor ValveTechnology, Inc
Sizing Information
Flow Equations
C = Q V
SG
SG
ÄP
ÄP
Where:
P = Inlet Pressure (psia)1
Q = Flow Rate (BPD)
P = Outlet Pressure (psia)2
ÄP = P -P1 2
S = Specific Gravity - Water = 1.00G
C = Valve coefficient of FlowV
Q = CV
P - Inlet Pressure (psia, psig, Bara, kPaa)1
P - Outlet Pressure (2
o o o oT - Temperature ( F , C , R , K )
psia, psig, Bara, kPaa)Q - Flow L
SG - Specific Gravity of Liquid(bbl/d, gal/min, lbs/hr, kg/hr, m/d )
Sizing Data for Liquids
2 Phase FlowP - Inlet Pressure (psia, psig, Bara, kPaa)1
P - Outlet Pressure (23Q - Flow (scf/d, m /hr, kg/hr )G
G - Specific Gravity of GasG
o o o oT - Temperature ( F , C , R , K )
psia, psig, Bara, kPaa)
Q - Flow L
S - Specific Gravity of LiquidG
(bbl/d, gal/min, lbs/hr, kg/hr, m/d )
Sizing Data For Gas ServiceP - Inlet Pressure (psia, psig, Bara, kPaa)1
P - Outlet Pressure (2
Q - Flow G
G - Specific GravityGo o o oT - Temperature ( F , C , R , K )
psia, psig, Bara, kPaa)3( scf/d, m /hr, kg/hr )
P - Inlet Pressure (psia, psig, Bara, kPaa)1
P - Outlet Pressure (23Q - Flow ( scf/d, m /hr, kg/hr )G
V - Specific Volume
o o o oT - Temperature ( F , C , R , K )
psia, psig, Bara, kPaa)
P - Vapor Pressure (Function of Temperature)V
(Function of Temperature and P Pressure)1
SG - Specific Gravity of GasG
Co2 ( Gaseous )
Liquid
Gas
Solve for CV
Volume
Solve for Flow (Q)
Mass
Any Vapor
F = Ratio of Specific Heats (K/1.40)k
K = Specific Heat Ratio for Air (1.40)M = Molecular weight
o oT = Temperature R = ( F + 460)P = Inlet Pressure (psia)1
P = Outlet Pressure (psia)2
ÄP = P -P1 2
Q = Flow Rate (SCFH)G = Specific Gravity - Air = 1.00G
C = Valve coefficient of FlowV
V = Specific volume cu. ft. per lb1
W = Flow rate lb/hrX = Actual pressure drop ratio ÄP / P1
Xt = Maximum pressure drop ratio (ÄP / P )max 1
Y = Expansion factor, 1- ( x / (3F * X )k t
Where:
2Q SGÄP =
Solve for Pressure Drop (ÄP)
2C V
X
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