Check Valves - Bucher Hydraulics · item no. 5207300004 = seal kit nbr (buna) ... 1919 3838 5757...

Check

1

ValvesMODEL DESCRIPTION FLOW CAVITY PAGE NO.

PDCV-08POCD-08POCD-10

PILOT OPERATED DUAL CHECK 5 GPM

10 GPM

C0840

C1040

1-151.0

1-132.0

2

3

1

2

P

1

V1

C1

V2

C2

12

3

FORWARD GUIDED BALL TYPE 2.5 GPM10 GPM

C0420C0820CVFB-08

CVFP-08

CVFP-10CVFP-12CVFP-16

FORWARD GUIDED POPPET TYPE

18 GPM36 GPM60 GPM

C1020C1220C1620

CVRP-08CVRP-10CVRP-12CVRP-16

REVERSE GUIDED POPPET TYPE 10 GPM18 GPM36 GPM50 GPM

C0820C1020C1220C1620

12

12

12

1-030.01-031.0

1-012.01-013.01-014.0

1-021.01-022.01-023.01-024.0

CVFB-04

POCX-08POCX-10POCX-12

PILOT OPERATED CHECK, EXTERNAL PILOT 10 GPM18 GPM35 GPM

C0820C1020C1220

1-111.01-112.01-113.0

POCI-08POCI-10POCI-12

PILOT OPERATED CHECK, INTERNAL PILOT 10 GPM18 GPM35 GPM

C0825C1025C1225

1-101.01-102.01-103.0

DPOC-08DPOC-10DPOC-12

DUAL PILOT OPERATED CHECK 10 GPM18 GPM36 GPM

C0825C1025C1225

1-141.01-142.01-143.0

1

2

4

3

CVFB-10 18 GPM C1020 1-032.0

PTCC-10 PILOT OPERATED CHECK, CLOSEPILOT 10 GPM C1025 1-202.0

replaced by PDCV-08

CVPF-08 10 GPM C0820 1-041.0replaced by CVPF-08

Reference: 520-P-010000-EN-02/05.2018

Cartridge Check Valve, Size SAE 08 / NG 5Qmax = 10.0 gpm �[38�l/min],�pmax = 5000 psi [350�bar]seat design, poppet style forward guidedSeries CVPF-08…

1/3

Reference: 520-P-010410-EN-01

Issue: 05.2018

� Compact construction for cavity type C0820

� Wide selection of bias springs allows flexibility for

back-pressure applications

� 100% performance-tested

� All exposed parts with zinc plating

� Can be fitted in a line-mounting body

� Replaces CVFP-08…

1 Description

This valve is a screw in cartridge type, guided poppet, hy

draulic check valve. Use as a blocking or load holding de

vice for 5000 psi (350 bar) applications. All external parts of

the cartridge are zinc plated to DIN 50�979 and are thus sui

table for use in the harshest operating environments. If you

intend to manufacture your own cavities or are designing a

line-mounting installation, please refer to the section “Rela

ted data sheets”.

2 Symbol

USASI: ISO:

12 12

3 Technical data

General characteristics Description, value, unit

Designation cartridge check valve

Design seat design, poppet style forward guided

Mounting method screw-in cartridge 3/4-16 UNF-2B

Size SAE 08 / NG 5, for cavity type C0820

Weight 0.15 lbs [0.07 kg]

Mounting attitude unrestricted

Ambient temperature range -40�°F … +248�°F [-40�°C … +120�°C]

Hydraulic characteristics Description, value, unit

Maximum operating pressure 5000�psi [350�bar]

Maximum flow rate 10.0 gpm [38�l/min]

Flow direction shut-off direction 2 1

Opening pressure 1 2 5�/15�/�30�/�60�psi [.35�/�1�/�2�/�4�bar]

Leakage flow rate 5�drops @ 5000�psi [5�drops @ 350�bar]

Hydraulic fluid HL and HLP mineral oil to DIN 51 524;

for other fluids, please contact BUCHER

Hydraulic fluid temperature range -13�°F … +176�°F [-25�°C … +80�°C]

520-P-010410-EN-01/05.2018

Series CVPF-08…2/3

Description, value, unitHydraulic characteristics

Viscosity range 10…500�mm2/s (cSt), recommended 15...250�mm2/s (cSt)

Minimum fluid cleanliness

Cleanliness class to ISO 4406�:�1999

class 20/18/15

4 Performance graphs

[measured with oil viscosity 33�mm2/s (cSt)]

p = f (Q) Pressure drop - Flow rate characteristic

(0)0

60

90

120

150

Q [gpm (l/min)]

108640(0)

p [psi (bar)]

(4.2)

(6.2)

(8.3)

(10.5)

(38)(30.3)(22.7)(15.1)

30 (2.0)

2(7.6)

30 psi

15 psi

5 psi

60 psi

EL_P0002.ai

5 Dimensions & sectional view

1

2

MA = 2)

.875 HEX (22.2)

1.10

(27,

9).4

5(1

1,4)

1.55

(39.

29) 3/4−16 UNF−2B

1

2

3

Tightening torque MA 2)

Cavity type C0820

When fitted in aluminium

When fitted in steel

25…30 ft-lbs (34 - 42�[Nm])

35…40 ft-lbs (47 - 54�[Nm])

6 Installation information

IMPORTANT!

When fitting the cartridges, use the specified tigh

tening torque. No adjustments are necessary,

since the cartridges are set in the factory.

ATTENTION!

Only qualified personnel with mechanical skills

may carry out any maintenance work. Generally,

the only work that should ever be undertaken is to

check, and possibly replace, the seals. When

changing seals, oil or grease the new seals tho

roughly before fitting them.

Seal kit

Item Qty. Description

1 1 Backup ring �9.5 x 1.5

2 1 O-ring no. 908 �0.644 x 0.087

3 1 O-ring �9.5 x 1.5

IMPORTANT!

Item no. 5207300004 = Seal kit NBR (Buna)

Item no. 5207300055 = Seal kit FKM (Viton)

520-P-010410-EN-01/05.2018

Series CVPF-08…3/3

7 Ordering code

CVPF = Check Valve Poppet-style Forward-guided

08 = size SAE 08 / NG 5

N = NBR (Nitrile) seals (standard)

V = FKM (Viton) seals

(special seals - please consult BUCHER)

0 = cartridge only (standard))

02BA = line-mounting body G ¼ BSPP aluminum (on request)

02BS = line-mounting body G ¼ BSPP steel (on request)

06TA = line-mounting body SAE-#6 aluminum

06TS = line-mounting body SAE-#6 steel

opening (crack) pressure

005 = 5 psi [.35�bar]

015 = 15 psi [1�bar]

030 = 30 psi [2�bar]

060 = 60 psi [4�bar]

120 = 120 psi [8�bar] (on request)

- N08-CVPF - 005-0

8 Related data sheets

Reference (Old no.) Description

520-P-000050 Form tools

520-P-000110 (0–011.0) Cavity type C0820

520-P-000111 (0–011.1) Line-mounting body, 8 Series – 2 way

� 2018 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA

www.bucherhydraulics.com/[email protected]

All rights reserved.

Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The

information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual

improvement, we reserve the right to amend the product specifications contained in this catalogue.

Classification: 430.315.340.305.310.330

2 1

CRACK PRESSURECRACK PRESSURE005005015015030030060060120120

= 5 PSI= 5 PSI= 15 PSI= 15 PSI= 30 PSI= 30 PSI= 60 PSI= 60 PSI= 120 PSI= 120 PSI

SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS

002BX02BX03BX03BX06TX06TX08TX08TX

= CARTRIDGE ONLY= CARTRIDGE ONLY= G 1/4" BSPP = G 1/4" BSPP = G 3/8" BSPP= G 3/8" BSPP= SAE - #6= SAE - #6= SAE - #8= SAE - #8

"A" - ALUM. HOUSING"A" - ALUM. HOUSING"S" - STEEL HOUSING"S" - STEEL HOUSING

N = BUNA "N"N = BUNA "N"V = VITONV = VITON

CVFP-10-X-X-XXXCVFP-10-X-X-XXX

7,0 7,0

PRESSURE DROP ( P)

PRESSURE DROP ( P)

100100

G.P.M.(135 SUS)G.P.M.(135 SUS)

PSIPSI0 5

50 50

1010 1515

BARBAR

2020

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002001919 3838 5757

10,510,5

14,014,07676

CHECK VALVE FORWARD GUIDED POPPETCHECK VALVE FORWARD GUIDED POPPET

FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1

2.00" 2.00"[50,8][50,8]

[32,5][32,5] 1.28" 1.28"

[20,3][20,3].800".800"

[50,8][50,8] 2.00" 2.00"

1.06" [27,0] HEX1.06" [27,0] HEX

2

1

Steel = 55/60 Ft-Lb. [74/81 Nm] Steel = 55/60 Ft-Lb. [74/81 Nm]

TORQUE:TORQUE:

Aluminum = 35/40 Ft-Lb. [47/54 Nm]Aluminum = 35/40 Ft-Lb. [47/54 Nm]

Reference: 520-P-010120-EN-00/09.2015

CVFP-10

SPECIFICATIONSSPECIFICATIONS

FEATURES AND BENEFITSFEATURES AND BENEFITS

DESCRIPTIONDESCRIPTION

OPERATIONSOPERATIONS

back-pressure application.back-pressure application.

Industry common cavity.Industry common cavity.All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.

VALVE CAVITY: #C1020, See Page 0-012.0.VALVE CAVITY: #C1020, See Page 0-012.0.WEIGHT: .25 lb [.12 kg] cartridge only.WEIGHT: .25 lb [.12 kg] cartridge only.

SKV-1021 Viton SKV-1021 VitonSEAL KIT: SKN-1021 Buna "N"SEAL KIT: SKN-1021 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions.

INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]FLOW: 18.0 GPM [68 l/m] nominal. See performance chart.FLOW: 18.0 GPM [68 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

device for high pressure applications.device for high pressure applications.hydraulic check valve, for use as a blocking or load holdinghydraulic check valve, for use as a blocking or load holdingThis unit is a SCREW IN, cartridge type, guided poppet,This unit is a SCREW IN, cartridge type, guided poppet,

Wide selection of bias springs allows flexibility forWide selection of bias springs allows flexibility for

flow from port 2 to port 1 or holding a load.flow from port 2 to port 1 or holding a load.This valve allows free flow from port 1 to port 2 and blocksThis valve allows free flow from port 1 to port 2 and blocks


MIL-H-5606, SAE-#10, SAE-#20, etc. MIL-H-5606, SAE-#10, SAE-#20, etc.OPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.] 5000 PSI [350 Bar] = Steel - Unplated. 5000 PSI [350 Bar] = Steel - Unplated.VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.

[email protected] www.bucherhydraulics.com/commoncavity

2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USAAll rights reserved.Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual improvement, we reserve the right to amend the product specifications contained in this catalogue.

©

Reference: 520-P-010120-EN-00/09.2015

CVFP-10

2 1

1.75"1.75"


[69,9][69,9]2.75"2.75"

100100

PRESSURE DROP ( P)

PRESSURE DROP ( P)

7,0 7,0


PSIPSI0 1010

50 50

2020 3030

BARBAR

4040

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002003838

[44,5][44,5]

7676 114114

10,510,5

14,014,0151151

[69,9][69,9]2.75"2.75"

[28,7][28,7]1.13"1.13"

1

2

1.31" [33,3] HEX1.31" [33,3] HEX



SEALSSEALS

12 = 1.062"-12 UNF12 = 1.062"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS








TORQUE:TORQUE:


Reference: 520-P-010130-EN-00/09.2015

CVFP-12






All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.

VALVE CAVITY: #C1220, See Page 0-013.0.VALVE CAVITY: #C1220, See Page 0-013.0.WEIGHT: 0.50 lb [0.22 kg] cartridge only.WEIGHT: 0.50 lb [0.22 kg] cartridge only.

SKV-1231 Viton SKV-1231 VitonSEAL KIT: SKN-1231 Buna "N"SEAL KIT: SKN-1231 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions. MIL-H-5606, SAE-#10, SAE-#20, etc. MIL-H-5606, SAE-#10, SAE-#20, etc.OPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.] 5000 PSI [350 Bar] = Steel - Unplated. 5000 PSI [350 Bar] = Steel - Unplated.VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]FLOW: 36.0 GPM [136 l/m] nominal. See performance chart.FLOW: 36.0 GPM [136 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]







©

Reference: 520-P-010130-EN-00/09.2015

CVFP-12

2 1

1.82"1.82"


[76,2][76,2]3.00"3.00"

100100

PRESSURE DROP ( P)

PRESSURE DROP ( P)

7,0 7,0


PSIPSI0 1010

50 50

2020 3030 4040

BARBAR

5050 6060

3,5 3,5

7676L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002003838

[46,2][46,2]

114114 152152

10,510,5

22822814,014,0

190190

[76,2][76,2]3.00"3.00"

[34,3][34,3]1.35"1.35"

1.50" [38,1] HEX1.50" [38,1] HEX

2

1



SEALSSEALS

16 = 1.312"-12 UNF16 = 1.312"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS


= CARTRIDGE ONLY= CARTRIDGE ONLY= G 3/4" BSPP = G 3/4" BSPP = G 1.0" BSPP= G 1.0" BSPP= SAE - #12= SAE - #12= SAE - #16= SAE - #16






TORQUE:TORQUE:


Reference: 520-P-010140-EN-00/09.2015

CVFP-16

















©

Reference: 520-P-010140-EN-00/09.2015

CVFP-16



SEALSSEALS

08 = 3/4"-16 UNF08 = 3/4"-16 UNFSIZESIZE

PORTSPORTS


BASICBASIC

002BX02BX06TX06TX

= CARTRIDGE ONLY= CARTRIDGE ONLY= G 1/4" BSPP= G 1/4" BSPP= SAE - #6= SAE - #6


CVRP-08-X-X-XXXCVRP-08-X-X-XXX

CHECK VALVE REVERSE GUIDED POPPETCHECK VALVE REVERSE GUIDED POPPET

150150

PRESSURE DROP ( P)

PRESSURE DROP ( P)

PSIPSI

5050

0

100100

2


4 6

200200

7,67,6

L/M (28,5 cSt)L/M (28,5 cSt)

15,115,1 22,722,7

10,510,5

8

3,53,5

BARBAR

1010

7,07,0

30,330,3

14,014,0

3838

250250 17,217,2

2121300300


1

2

1.10"1.10"[27,96][27,96]

.850".850"[21,5][21,5]

NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.438 DIA.)NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.438 DIA.)

.312".312"[7,9][7,9]

.140".140"[3,5][3,5]

1.88"1.88"[47,62][47,62]

1.88"1.88"[47,62][47,62]

1.00" [25,4] HEX1.00" [25,4] HEX


TORQUE:TORQUE:


Reference: 520-P-010210-EN-00/09.2015

CVRP-08

















©

Reference: 520-P-010210-EN-00/09.2015

CVRP-08



SEALSSEALS

10 = 7/8" - 14 UNF10 = 7/8" - 14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS






7,0 7,0

PRESSURE DROP ( P)

PRESSURE DROP ( P)

100100


PSIPSI0 5

50 50

1010 1515

BARBAR

2020

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002001919 3838 5757

10,510,5

14,014,07676



[50,8][50,8]

[50,8][50,8] 2.00" 2.00"

2.00" 2.00"

1.06" [27,0] HEX1.06" [27,0] HEX

1.28" 1.28"[32,5][32,5]

[20,3][20,3].80".80"

.15" [3,8].15" [3,8]

NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.570" DIA.)NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.570" DIA.)

2 1

1

2


TORQUE:TORQUE:


Reference: 520-P-010220-EN-01/01.2016

CVRP-10








Industry common cavity.Industry common cavity.All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.


All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.back-pressure application.back-pressure application.Wide selection of bias springs allows flexibility forWide selection of bias springs allows flexibility for

device for high pressure applications.device for high pressure applications.hydraulic check valve, used as a blocking or load holdinghydraulic check valve, used as a blocking or load holdingThis unit is a SCREW IN, cartridge type, guided poppet,This unit is a SCREW IN, cartridge type, guided poppet,





©

Reference: 520-P-010220-EN-01/01.2016

CVRP-10

2 1

7,0 7,0

PRESSURE DROP ( P)

PRESSURE DROP ( P)

100100


PSIPSI0 1010

50 50

2020 3030

BARBAR

4040

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002003838 7676 114114

10,510,5

14,014,0151151

2.75"2.75"[69,9][69,9]

2.75"2.75"[69,9][69,9]

[44,5][44,5]1.75"1.75"

1

2

1.31" [33,3] HEX1.31" [33,3] HEX

[28,7][28,7]1.13"1.13"

FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.750" DIA.)NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.750" DIA.)

.22" [5,6].22" [5,6]



SEALSSEALS

12 = 1.062"-12 UNF12 = 1.062"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS








TORQUE:TORQUE:


Reference: 520-P-010230-EN-00/09.2015

CVRP-12













Industry common cavity.Industry common cavity.





©

Reference: 520-P-010230-EN-00/09.2015

CVRP-12

2 1


100100

PRESSURE DROP ( P)

PRESSURE DROP ( P)

7,0 7,0


PSIPSI0 1010

50 50

40402020 3030

BARBAR

5050

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002003838 1511517676 114114

10,510,5

14,014,0189189

[76,2][76,2]

3.00"3.00"[76,2][76,2]

3.00"3.00"

[46,2][46,2]1.82"1.82"

1

2

1.50" [38,1] HEX1.50" [38,1] HEX

1.35"1.35"[34,3][34,3]

.28" [7,1].28" [7,1]



SEALSSEALS

16 = 1.312"-12 UNF16 = 1.312"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS








TORQUE:TORQUE:


Reference: 520-P-010240-EN-00/09.2015

CVRP-16


















©

Reference: 520-P-010240-EN-00/09.2015

CVRP-16

11,411,49,59,5

2.52.5 3.03.0

150150

CHECK VALVE FORWARD GUIDED BALLCHECK VALVE FORWARD GUIDED BALL

7,67,65,75,73,83,8

2.02.01.51.51.01.0

1,91,9

0.50.50

25 25

50 50

75 75

100100

PSIPSI


L/M (28,5 cSt)L/M (28,5 cSt)

BARBAR

PRESSURE DROP ( P)

PRESSURE DROP ( P)

1,81,8

3,53,5

5,35,3

7,07,0

12

CRACK PRESSURECRACK PRESSURE005 005 = 5 PSI= 5 PSI

SEALSSEALS

04 = 7/16"-20 UNF04 = 7/16"-20 UNFSIZESIZE

PORTSPORTS

0 0 = CARTRIDGE ONLY= CARTRIDGE ONLY (NO HOUSING OFFERED) (NO HOUSING OFFERED)


BASICBASIC

020 020 = 20 PSI= 20 PSI

CVFB-04-X-0-XXXCVFB-04-X-0-XXX

[14/16 N-m]. [14/16 N-m].TORQUE to 10/12 Ft-Lb.TORQUE to 10/12 Ft-Lb.

1

2

.188".188"

HEX.HEX.

.56".56"

.100".100"

.93".93"

[14,2][14,2]

[4,8][4,8]

[2,54][2,54]

[23,6][23,6]

Reference: 520-P-010300-EN-00/09.2015

CVFB-04





device for high pressure applications.device for high pressure applications.hydraulic check valve, for use as a blocking or load holdinghydraulic check valve, for use as a blocking or load holdingThis unit is a SCREW IN, cartridge type, guided ball,This unit is a SCREW IN, cartridge type, guided ball,


VALVE CAVITY: #C0420.VALVE CAVITY: #C0420.WEIGHT: .08 lb [.04 kg] cartridge only.WEIGHT: .08 lb [.04 kg] cartridge only.

SKV-0421 Viton SKV-0421 VitonSEAL KIT: SKN-0421 Buna "N"SEAL KIT: SKN-0421 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions. MIL-H-5606, SAE-#10, SAE-#20, etc. MIL-H-5606, SAE-#10, SAE-#20, etc.OPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING MEDIA: All general purpose hydraulic fluids such asOPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]FLOW: 2.5 GPM [9,5 l/m] nominal. See performance chart.FLOW: 2.5 GPM [9,5 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]





©

Reference: 520-P-010300-EN-00/09.2015

CVFB-04

2 1


= 5 PSI= 5 PSI= 10 PSI= 10 PSI= 25 PSI= 25 PSI= 50 PSI= 50 PSI

SEALSSEALS

08 = 3/4"-16 UNF08 = 3/4"-16 UNFSIZESIZE

PORTSPORTS


BASICBASIC

002BX02BX06TX06TX



CVFB-08-X-X-XXXCVFB-08-X-X-XXX


PRESSURE DROP ( P)

PRESSURE DROP ( P)


0

PSIPSI

4040

2 4 101086BARBAR

3,53,5

160160

8080

120120

200200

7,67,6 15,115,1 383830,330,322,722,7

10,510,5

1414

7,07,0

17,217,2

240240 2121

L/M (28,5 cSt)L/M (28,5 cSt)


1

2

1.00" [25.4] HEX1.00" [25.4] HEX

1.88"1.88"[47,8][47,8]

1.88"1.88"[47,8][47,8]

.478.478[12,1][12,1]

1.1001.100[27,9][27,9]


TORQUE:TORQUE:


Reference: 520-P-010310-EN-00/09.2015

CVFB-08






VALVE CAVITY: #C0820, See Page 0-011.0.VALVE CAVITY: #C0820, See Page 0-011.0.WEIGHT: .20 lb [.12 kg] cartridge only.WEIGHT: .20 lb [.12 kg] cartridge only. SKV-0821 Viton SKV-0821 VitonSEAL KIT: SKN-0821 Buna "N"SEAL KIT: SKN-0821 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions.








©

Reference: 520-P-010310-EN-00/09.2015

CVFB-08

2 1



SEALSSEALS

10 = 7/8" - 14 UNF10 = 7/8" - 14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS0





CVFB-10-X-X-XXXCVFB-10-X-X-XXX

7,0 7,0

PRESSURE DROP ( P)

PRESSURE DROP ( P)

100100


PSIPSI0 5

50 50

1010 1515

BARBAR

2020

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002001919 3838 5757

10,510,5

14,014,07676



2.00" 2.00"[50,8][50,8]

[50,8][50,8] 2.00" 2.00"

1.06" [27,0] HEX1.06" [27,0] HEX

[32,5][32,5] 1.28" 1.28"

[14,2][14,2].558".558"

2

1


TORQUE:TORQUE:


Reference: 520-P-010320-EN-01/01.2016

CVFB-10







Industry common cavity.Industry common cavity.All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external parts are zinc plated for longer life against the elements.All external parts are zinc plated for longer life against the elements.





flow from port 2 to port 1 for holding a load.flow from port 2 to port 1 for holding a load.This valve allows free flow from port 1 to port 2 and blocksThis valve allows free flow from port 1 to port 2 and blocks





©

Reference: 520-P-010320-EN-01/01.2016

CVFB-10

2

3

1

3

FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-021-1.FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-021-1.

1

2

2.50"2.50"[63,5][63,5]

2.25"2.25"[57,2][57,2]

.88".88"[22,4][22,4]

1.60"1.60"[40,6][40,6]

.15".15"[3,8][3,8] .312".312"

[7,9][7,9]

NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).

1.00"1.00"[25,4][25,4]HEXHEX

PRESSURE DROP ( P)

PRESSURE DROP ( P)

PSIPSI0

100100

5050

2


4 6

200200

150150

7,67,6

L/M (28,5 cSt)L/M (28,5 cSt)

15,115,1 22,722,7

8 1010BARBAR

7,07,0

3,53,5

30,330,3 3838

10,510,5

14,014,0

6060

3030

1010


= 10 PSI= 10 PSI= 30 PSI= 30 PSI= 60 PSI= 60 PSI

SEALSSEALS

08 = 3/4"-16 UNF08 = 3/4"-16 UNF

BASICBASIC

SIZESIZE

PORTSPORTS

003BX03BX08TX08TX




= FIXED = FIXED ADJUSTMENTADJUSTMENT F F

POCI-08-X-F-X-XXXPOCI-08-X-F-X-XXX

PILOT OPERATED CHECK VALVE POPPET TYPE,PILOT OPERATED CHECK VALVE POPPET TYPE,

PILOT TO OPEN, 3 TO 1 PILOT RATIOPILOT TO OPEN, 3 TO 1 PILOT RATIO


TORQUE:TORQUE:


Reference: 520-P-011010-EN-00/09.2015

POCI-08








INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]PILOT RATIO: 3 TO 1PILOT RATIO: 3 TO 1FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.A seperate heavy spring assures fast return of the pilot piston forA seperate heavy spring assures fast return of the pilot piston forA low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.

that is required at port 3 to open the valve.that is required at port 3 to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningfrom port 1 to port 2 when pressure is applied to port 3.from port 1 to port 2 when pressure is applied to port 3.flow from port 1 to port 2 or holding a load. Flow will be allowedflow from port 1 to port 2 or holding a load. Flow will be allowedThis valve allows free flow from port 2 to port 1 and blocksThis valve allows free flow from port 2 to port 1 and blocks

or load holding device for high pressure applications.or load holding device for high pressure applications.hydraulic pilot operated check valve, for use as a blockinghydraulic pilot operated check valve, for use as a blockingThis unit is a SCREW IN, cartridge type, guided poppet,This unit is a SCREW IN, cartridge type, guided poppet,

PILOT OPERATED CHECK VALVE POPPET TYPE,PILOT OPERATED CHECK VALVE POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO. PILOT TO OPEN, 3 TO 1 PILOT RATIO.




©

Reference: 520-P-011010-EN-00/09.2015

POCI-08

2

3

1


PRESSURE DROP ( P)

PRESSURE DROP ( P)


PSIPSI0 5

50 50

100100

1010 1515BARBAR

2020

3,4 3,4

6,8 6,8

L/M (28,5 cSt)L/M (28,5 cSt)

150150

200200

2502501919

.15" [3,8].15" [3,8]

[46,9][46,9] 1.85" 1.85"

3838 5757

10,210,2

13,613,6

767617,017,0

[20,2][20,2].795".795"

"F" FIXED"F" FIXED

[42,3][42,3] 1.63" 1.63"

[63,5][63,5] 2.50" 2.50"

[69,8][69,8] 2.75" 2.75"

HEX HEX[27,0][27,0] 1.06" 1.06"

2

3

1

NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSIONS (.563 DIA.)NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSIONS (.563 DIA.)



SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS





= FIXED = FIXED = MANUAL RELEASE= MANUAL RELEASE

ADJUSTMENTADJUSTMENT F F M M

"M" MANUAL LOAD RELEASE"M" MANUAL LOAD RELEASE1/2" [12,7] HEX1/2" [12,7] HEX

POCI-10-X-X-X-XXXPOCI-10-X-X-X-XXX


PILOT TO OPEN, 3 TO 1 PILOT RATIO. PILOT TO OPEN, 3 TO 1 PILOT RATIO.


TORQUE:TORQUE:


Reference: 520-P-011020-EN-00/09.2015

POCI-10





Optional screw type manual load release is available.Optional screw type manual load release is available.





a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.A seperate heavy spring assures fast return of the pilot piston forA seperate heavy spring assures fast return of the pilot piston forA low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.

that is required at port 3 to open the valve.that is required at port 3 to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningfrom port 1 to port 2 when pressure is applied to port 3.from port 1 to port 2 when pressure is applied to port 3.flow from port 1 to port 2 or holding a load. Flow will be allowedflow from port 1 to port 2 or holding a load. Flow will be allowedThis valve allows free flow from port 2 to port 1 and blocksThis valve allows free flow from port 2 to port 1 and blocks


PILOT OPERATED CHECK VALVEPILOT OPERATED CHECK VALVE

POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.




©

Reference: 520-P-011020-EN-00/09.2015

POCI-10

2

3

1


PRESSURE DROP ( P)

PRESSURE DROP ( P)

1010G.P.M.(135 SUS)G.P.M.(135 SUS)

PSIPSI0 5

50 50

100100

1515 2020 2525BARBAR

3030 3535

3,4 3,4

6,8 6,8

3838

L/M (28,5 cSt)L/M (28,5 cSt)

150150

200200

2502501919

.19" [4,8].19" [4,8]

[62,2][62,2] 2.45" 2.45"

5757 7676 9494

10,210,2

13,613,6

114114 13213217,017,0

[28,6][28,6]1.13"1.13"

[50,5][50,5] 1.99" 1.99"

3.00"3.00"[76,2][76,2]

3.50"3.50"[88,9][88,9]

2

3

1

1.31" 1.31" [33,4] [33,4]HEXHEX




SEALSSEALS

12 = 1.062"-12 UNF12 = 1.062"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS






ADJUSTMENTADJUSTMENT F F M M

"F" FIXED"F" FIXED


POCI-12-X-X-X-XXXPOCI-12-X-X-X-XXX


PILOT TO OPEN, 3 TO 1 PILOT RATIO. PILOT TO OPEN, 3 TO 1 PILOT RATIO.

Steel = 70/75 Ft-Lb. [95/102 Nm] Steel = 70/75 Ft-Lb. [95/102 Nm]Aluminum = 55/60 Ft-Lb. [74/81 Nm]Aluminum = 55/60 Ft-Lb. [74/81 Nm]

TORQUE:TORQUE:

Reference: 520-P-011030-EN-00/09.2015

POCI-12





a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.

All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.Optional screw type manual load release is available.Optional screw type manual load release is available.

VALVE CAVITY: #C1225, See Page 0-023.0.VALVE CAVITY: #C1225, See Page 0-023.0.WEIGHT: 0.63 lb [0,25 kg] cartridge only.WEIGHT: 0.63 lb [0,25 kg] cartridge only.


INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]

FLOW: 35.0 GPM [132.4 l/m] nominal. See performance chart.FLOW: 35.0 GPM [132.4 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

PILOT RATIO: 3 TO 1PILOT RATIO: 3 TO 1

A seperate heavy spring assures fast return of the pilot piston forA seperate heavy spring assures fast return of the pilot piston forA low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.

that is required at port 3 to open the valve.that is required at port 3 to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningport 1 to port 2 when sufficient pilot pressure is applied to port 3.port 1 to port 2 when sufficient pilot pressure is applied to port 3.from port 1 to port 2 or holding a load. Flow will be allowed fromfrom port 1 to port 2 or holding a load. Flow will be allowed fromThis valve allows free flow from port 2 to port 1 and blocks flowThis valve allows free flow from port 2 to port 1 and blocks flow







©

Reference: 520-P-011030-EN-00/09.2015

POCI-12

2

P

1


1

2

1.88"1.88"[47,75][47,75]

1.88"1.88"[47,75][47,75]


1.10"1.10"[27,94][27,94]

1.75"1.75"[44,45][44,45]

.312".312"[7,9][7,9]

"P" PILOT PORT"P" PILOT PORT

.140".140"[4,0][4,0]

1.00"1.00"[25,4][25,4]HEXHEX

PRESSURE DROP ( P)

PRESSURE DROP ( P)

150150

5050

PSIPSI0

100100

2


4 6

2002007,67,6

L/M (28,5 cSt)L/M (28,5 cSt)

15,115,1 22,722,7

8

3,53,5

1010BARBAR

7,07,0

30,330,314,014,0

10,510,5

3838



SEALSSEALS

08 = 3/4"-16 UNF08 = 3/4"-16 UNF

BASICBASIC

SIZESIZE

PORTSPORTS

002BX02BX06TX06TX

= CARTRIDGE ONLY= CARTRIDGE ONLY= G 1/4" BSPP = G 1/4" BSPP = SAE - #6= SAE - #6



"P""P"4T4T

PILOT PORTPILOT PORT= SAE - #4= SAE - #4

POCX-08-X-X-4T-XXXPOCX-08-X-X-4T-XXX



TORQUE:TORQUE:


Reference: 520-P-01111 0-EN-00/09.2015

POCX-08





All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.




INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]PILOT RATIO: 3 TO 1PILOT RATIO: 3 TO 1FLOW: 10.0 GPM [38,0 l/m] nominal. See performance chart.FLOW: 10.0 GPM [38,0 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

A low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.back-pressure application.back-pressure application.Wide selection of bias springs allows flexibility forWide selection of bias springs allows flexibility for

that is required at pilot port "P" to open the valve.that is required at pilot port "P" to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningfrom port 1 to port 2 when pressure is applied to pilot port "P".from port 1 to port 2 when pressure is applied to pilot port "P".flow from port 1 to port 2 or holding a load. Flow will be allowedflow from port 1 to port 2 or holding a load. Flow will be allowedThis valve allows free flow from port 2 to port 1 and blocksThis valve allows free flow from port 2 to port 1 and blocks


We recommend to use an orifice to dampen the pilot signal (X) when usedWe recommend to use an orifice to dampen the pilot signal (X) when usedwith an on/off (hard shifting) valve.with an on/off (hard shifting) valve.

PILOT TO OPEN, 3 TO 1 PILOT RATIOPILOT TO OPEN, 3 TO 1 PILOT RATIOPILOT OPERATED CHECK VALVE POPPET TYPE,PILOT OPERATED CHECK VALVE POPPET TYPE,




©

Reference: 520-P-01111 0-EN-00/09.2015

POCX-08

2

P

1


100100

PRESSURE DROP ( P)

PRESSURE DROP ( P)

7,0 7,0


PSIPSI0 5

50 50

1010 1515

BARBAR

2020

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002001919

.15" [3,8].15" [3,8]

[32,5][32,5] 1.28" 1.28"

3838 5757

10,510,5

14,014,07676

[43,2][43,2] 1.70" 1.70"

1.06" [27.0] HEX1.06" [27.0] HEX


[50,8][50,8]

[50,8][50,8] 2.00" 2.00"

2.00" 2.00"

[27,0][27,0]1.06" 1.06"

2

1

120120

6060

3030




SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS





"P""P"2B2B4T4T

PILOT PORTPILOT PORT= G 1/4" BSPP= G 1/4" BSPP= SAE - #4= SAE - #4

POCX-10-X-X-XX-XXXPOCX-10-X-X-XX-XXX

PILOT OPERATED CHECK VALVE POPPET TYPE,PILOT OPERATED CHECK VALVE POPPET TYPE,PILOT TO OPEN, 3 TO 1 PILOT RATIO.PILOT TO OPEN, 3 TO 1 PILOT RATIO.


TORQUE:TORQUE:


Reference: 520-P-011120-EN-00/09.2015

POCX-10










A low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.back-pressure application.back-pressure application.Wide selection of bias springs allows flexibility forWide selection of bias springs allows flexibility for

that is required at pilot port "P" to open the valve.that is required at pilot port "P" to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningfrom port 1 to port 2 when pressure is applied to pilot port "P".from port 1 to port 2 when pressure is applied to pilot port "P".flow from port 1 to port 2 or holding a load. Flow will be allowedflow from port 1 to port 2 or holding a load. Flow will be allowedThis valve allows free flow from port 2 to port 1 and blocksThis valve allows free flow from port 2 to port 1 and blocks








©

Reference: 520-P-011120-EN-00/09.2015

POCX-10

2

P

1


100100

PRESSURE DROP ( P)

PRESSURE DROP ( P)

7,0 7,0


PSIPSI0 1010

50 50

2020 3030

BARBAR

4040

3,5 3,5

L/M (28,5 cSt)L/M (28,5 cSt)

150150

2002003838

.22" [5,6].22" [5,6]

[44,5][44,5]1.75"1.75"

1141147676

10,510,5

14,014,0151151

[54,6][54,6]2.15"2.15"

[69,9][69,9]

2.75"2.75"[69,9][69,9]

2.75"2.75"

1.31" 1.31"

HEXHEX [33,4] [33,4]

2

1


120120

6060

3030

NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION(.630 DIA.).NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION(.630 DIA.).



SEALSSEALS

12 = 1.062"-12 UNF12 = 1.062"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS





"P""P"2B2B4T4T

PILOT PORTPILOT PORT= G 1/4" BSPP= G 1/4" BSPP= SAE - #4= SAE - #4

POCX-12-X-X-XX-XXXPOCX-12-X-X-XX-XXX



TORQUE:TORQUE:


Reference: 520-P-011130-EN-00/09.2015

POCX-12





A low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.


VALVE CAVITY: #C1220, See Page 0-013.0.VALVE CAVITY: #C1220, See Page 0-013.0.WEIGHT: 0.31 lb [0,14 kg] cartridge only.WEIGHT: 0.31 lb [0,14 kg] cartridge only. SKV-1221 Viton SKV-1221 VitonSEAL KIT: SKN-1221 Buna "N"SEAL KIT: SKN-1221 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions.


FLOW: 35.0 GPM [132,5 l/m] nominal. See performance chart.FLOW: 35.0 GPM [132,5 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]


back-pressure application.back-pressure application.Wide selection of bias springs allows flexibility forWide selection of bias springs allows flexibility for

that is required at pilot port "P" to open the valve.that is required at pilot port "P" to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningport 1 to port 2 when sufficient pilot pressure is applied to port "P".port 1 to port 2 when sufficient pilot pressure is applied to port "P".from port 1 to port 2 or holding a load. Flow will be allowed fromfrom port 1 to port 2 or holding a load. Flow will be allowed fromThis valve allows free flow from port 2 to port 1 and blocks flowThis valve allows free flow from port 2 to port 1 and blocks flow









©

Reference: 520-P-011130-EN-00/09.2015

POCX-12

Dual P.O. Check Valve Cartridge, SAE 08 / NG 5Qmax = 5 gpm� (19 l/min),�pmax = 3600�psi (250 bar)Pilot operatedSeries PDCV-08…

1/4

Reference: 520-P-011510-EN-01

Issue: 03.2018

� A low friction pilot piston is standard

� Compact construction for cavity types:

C0840 and AN/C0840 – 3/4-16 UNF

� Separate springs assure fast return to neutral position

� Reliable and high positive re-seat duration

� All exposed parts with zinc-nickel plating

� Can be fitted in a line-mounting body

� Replaces POCD-08…

1 Description

The PDCV08… series dual pilot operated check valve

cartridges are size SAE 08 / NG 5, high performance

screwin valves with a 3/416 UNF mounting thread. This

unit is a cartridge type, high strength steel guided poppet for

realizable low leakage performance, dual hydraulic pilot

operated check valve, for use as a blocking or load holding

device at high pressure applications.This valve allows free

flow from port 2 to port 1 and from port 3 to port 4 and it

blocks flow from port 1 to port 2 and from port 4 to port 3.

Flow is allowed from port 1 to port 2 when pilot pressure is

sensed at port 3 or flow is allowed from port 4 to port 3 when

pilot pressure is sensed at port 2. In order to pilot the valve

opens, the pressure at port 2 or port 3 needs to exceed one-

third of the load pressure from port 1 or port 4. All external

parts of the cartridge are zinc-nickel plated to DIN 50�979

and are thus suitable for use in the harshest operating envi

ronments. If you intend to manufacture your own cavities or

are designing a line-mounting installation, please refer to

the section “Related data sheets”.

2 Symbol

2

1 4

3 2

1

3

4

PDCV-08-…-C… PDCV-08-…-3…

3 Technical data

General characteristics Description, value, unit

Designation dual p.o. check valve cartridges

Design pilot operated

Mounting method screw-in cartridge 3/4-16 UNF

Size SAE 08 / NG 5 for cavity type C0840 and AN/C0840

Weight 0.26 lbs (0.12 kg)

Mounting attitude unrestricted

Ambient temperature range -40�°F…+250�°F (-40�°C…+120�°C)

Optional internal thermal relief valve from port 4 to port 3

3000 psi (210 bar), not adjustable

520-P-011510-EN-01/03.2018

Series PDCV-08…2/4

Hydraulic characteristics Description, value, unit

Maximum operating pressure 3600 psi (250�bar)

Maximum flow rate 5 gpm (19�l/min)

Pilot Ratio 3.0 to 1

Leakage flow rate 5 drops/min @ 3500 psi (5 drops/min @ 240 bar)

Flow direction see symbol

Hydraulic fluid HL and HLP mineral oil to DIN 51 524;

for other fluids, please contact BUCHER

Hydraulic fluid temperature range -40�°F…+250�°F (-40�°C…+120�°C)

Viscosity range 15…380�mm2/s (cSt), recommended 20...130�mm2/s (cSt)

Minimum fluid cleanliness

Cleanliness class to ISO 4406�:�1999

class 18/16/13

4 Performance graphs

measured with oil viscosity 33�mm2/s (cSt)


“free flow 2 1“

EL_P0022.ai

(0)0

50

100

150

200

250

Q [gpm (l/min)]

543210(0)

p [psi (bar)]

(3.5)

(6.9)

(10.3)

(13.8)

(17.2)

(19)(15)(11.4)(7.8)(3.8)


“free flow 3 4“

EL_P0023.ai

(0)0

50

100

150

200

250

Q [gpm (l/min)]

543210(0)

p [psi (bar)]

(3.5)

(6.9)

(10.3)

(13.7)

(17.2)

(19)(15)(11.4)(7.8)(3.8)

Attention:

When flow passes through the check valve and

there is a large pressure difference, the poppet in

the main stage can be damaged.

Q = f (p; I) Flow rate adjustment characteristic

“pilot 3 flow 1 2“

EL_P0024.ai

(0)0

50

100

150

200

250

Q [gpm (l/min)]

543210(0)

p [psi (bar)]

(3.5)

(6.9)

(10.3)

(13.7)

(17.2)

(19)(15)(11.4)(7.8)(3.8)

Q = f (I; p) Flow rate adjustment characteristic

“pilot 2 flow 4 3“

EL_P0025.ai

(0)0

50

100

150

200

250

Q [gpm (l/min)]

543210(0)

p [psi (bar)]

(3.5)

(6.9)

(10.3)

(13.7)

(17.2)

(19)(15)(11.4)(7.8)(3.8)

520-P-011510-EN-01/03.2018


5 Dimensions & sectional view

Dimensions in inches (millimeters)

1.00 HEX

3.00

[76.

2]2.

15[5

4.6]

.85

[21.

6]

3

4

2

21

13

6

5

7

3/4−16 UNF

MA= 2)

2

3

4

[25.4]

1

Tightening torque MA 2) ±�10�%

Cavity type C0840, AN/C0840

When fitted in steel

When fitted in aluminium

37 ft-lbs (50�[Nm])

27 ft-lbs (37�[Nm])

6 Installation information

Important:

When fitting the cartridges, use the specified

tightening torque. No adjustments are necessary,

since the cartriges are set in the factory.

ATTENTION!

Only qualified personnel with mechanical skills

may carry out any maintenance work. Generally,

the only work that should ever be undertaken is to

check, and possibly replace, the seals. When

changing seals, oil or grease the new seals tho

roughly before fitting them.

Seal kit NBR no. SKN-0828 1)

Item Qty. Description

4 1 O-ring no.�908 �0.644�x�0.087 N90 Inch

6 2 O-ring �13.00�x�1.50 FKM mm

5 2 O-ring �11.00�x�1.50 FKM mm

7 2 O-ring � 9.50�x�1.50 FKM mm

2 2 Backup ring �13.00�x�1.50�x�1.00 FI0751 mm

1 2 Backup ring �11.30�x�1.50�x�1.00 FI0751 mm

3 2 Backup ring � 9.50�x�1.50�x�1.00 FI0751 mm

IMPORTANT!

1) Seal kit with FKM (Viton) seals, no. SKV-0828

520-P-011510-EN-01/03.2018


7 Ordering code

PDCV = pilot operated dual check valve

08 = size SAE 08 / NG 5

N = NBR (Nitrile) seals (standard)

V = FKM (Viton) seals

(special seals - please consult BUCHER)

C = no thermal relief

3 = 3000 psi (210 bar) internal thermal relief from port 4 to port 3, not adjustable

0 = cartridge only

02BA = line-mounting body G1/4 BSPP aluminum

02BS = line-mounting body G1/4 BSPP steel

06TA = line-mounting body SAE-#6 aluminum

06TS = line-mounting body SAE-#6 steel

08 -N--PDCV C- O

8 Related data sheets

Reference (Old no.) Description

520-P-000050 Form tools

520-P-000410 Cavity type C0840

… Cavity type AN/C0840

520-P-000411 Line-mounting body, 08 Series – 4-way

� 2018 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA

www.bucherhydraulics.com/[email protected]

All rights reserved.

Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The

information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual

improvement, we reserve the right to amend the product specifications contained in this catalogue.

Classification: 430.315.345.305.305

2 3

1 4

2 3

1 4


2.50"2.50"[63,5][63,5]

3.50"3.50"[88,9][88,9]

3

1

2

4

1.001.00[25,4][25,4]

2.49"2.49"[63,2][63,2]

1.06"1.06"[27,0][27,0]HEXHEX

SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS 0 0


= CARTRIDGE ONLY= CARTRIDGE ONLY= G 1/4" BSPP= G 1/4" BSPP= G 3/8" BSPP= G 3/8" BSPP= SAE - #6= SAE - #6= SAE - #8= SAE - #8



TYPETYPEC35

= NO THERMAL RELIEF= NO THERMAL RELIEF= 3000 PSI RELIEF= 3000 PSI RELIEF= 5000 PSI RELIEF= 5000 PSI RELIEF

POCD-10-X-X-XPOCD-10-X-X-X

PILOT OPERATED DUAL CHECK VALVEPILOT OPERATED DUAL CHECK VALVE

WITH OPTIONAL THERMAL RELIEFWITH OPTIONAL THERMAL RELIEF

0

2525

5050

7575

100100

125125

150150

175175

200200

2 4 6G.P.M. (135 SUS)G.P.M. (135 SUS)

PRESSURE PSI

PRESSURE PSI

L/M (28,5 cSt)L/M (28,5 cSt)

7,67,6 15,115,1 22,722,7

BARBAR

3,43,4

6,96,9

10,310,3

13,813,8

8 1010

30,330,3 37,937,9

0

0

PILOTED

PILOTED

FREE FLOW

FREE FLOW

FREE FLO

WFREE

FLOW

PILOTED

PILOTED


TORQUE:TORQUE:


Reference: 520-P-011320-EN-00/09.2015

POCD-10






VALVE CAVITY: #C1040, See Page 0-042.0.VALVE CAVITY: #C1040, See Page 0-042.0.WEIGHT: .40 lb. [.19 kg] cartridge only.WEIGHT: .40 lb. [.19 kg] cartridge only. SKV-1042 Viton SKV-1042 VitonSEAL KIT: SKN-1042 Buna "N"SEAL KIT: SKN-1042 Buna "N"INSTALLATION: No restrictions.INSTALLATION: No restrictions.

INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]PILOT RATIO: 3 TO 1PILOT RATIO: 3 TO 1FLOW: 10.0 GPM [37.9 l/m] nominal. See performance chart.FLOW: 10.0 GPM [37.9 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

pressure at port 4.pressure at port 4.

from port 1 to port 2 when pilot pressure is applied to port 3 from port 1 to port 2 when pilot pressure is applied to port 3 and from port 4 to port 3 or holds a load. Flow will be allowedand from port 4 to port 3 or holds a load. Flow will be allowed

This check valve allows free flow from port 2 to port 1 andThis check valve allows free flow from port 2 to port 1 and

or load holding device for high pressure applications.or load holding device for high pressure applications.hydraulic pilot operated dual check valve, for use as a blockinghydraulic pilot operated dual check valve, for use as a blockingThis unit is a SCREW IN, cartridge type, guided poppet,This unit is a SCREW IN, cartridge type, guided poppet,

Thermal relief option available in one direction.Thermal relief option available in one direction.

from port 3 to port 4. It blocks flow from port 1 to port 2from port 3 to port 4. It blocks flow from port 1 to port 2

that is higher than one-third of the load pressure at port 1.that is higher than one-third of the load pressure at port 1.Flow will be allowed from port 4 to port 3 when pilot pressure Flow will be allowed from port 4 to port 3 when pilot pressure is applied to port 2 that is higher than one-third of the load is applied to port 2 that is higher than one-third of the load

This pilot operated check valve has a 3 to 1 pilot ratio.This pilot operated check valve has a 3 to 1 pilot ratio.Port 4 can be equipped with a thermal relief. The relief is set to Port 4 can be equipped with a thermal relief. The relief is set to open when the pressure in port 4 exceeds the relief setting. open when the pressure in port 4 exceeds the relief setting.

PILOT OPERATED DUAL CHECK VALVE PILOT OPERATED DUAL CHECK VALVE

WITH OPTIONAL THERMAL RELIEFWITH OPTIONAL THERMAL RELIEF




©

Reference: 520-P-011320-EN-00/09.2015

POCD-10

V1V1

C1C1

V2V2

C2C2

DPOC-08-X-F-X-XXDPOC-08-X-F-X-XX

V2V2

V2V2V1V1

C1C1 C2C2

PSIPSI0

100100

5050

2


4 6

150150

2002007,67,6 15,115,1 22,722,7

8BARBAR

1010

3,53,5

7,07,0

30,330,314,014,0

10,510,5

3838

PRESSURE DROP ( P)

PRESSURE DROP ( P)

L/M (28,5 cSt)L/M (28,5 cSt)

"F" FIXED "F" FIXED

1010

3030

6060

3.753.75[95,3][95,3]

3.373.37[85,6][85,6]

1.371.37[34,8][34,8]

1.121.12[28,5][28,5]

0.850.85[21,6][21,6]

2.502.50[63,5][63,5]

1.201.20[30,5][30,5]

0.600.60[15,2][15,2]




SEALSSEALS

08 = 3/4"-16 UNF08 = 3/4"-16 UNF

BASICBASIC

SIZESIZE

PORTSPORTS

03BX03BX04BX04BX08TX08TX

= G 3/8" BSPP = G 3/8" BSPP = G 1/2" BSPP= G 1/2" BSPP= SAE - #8= SAE - #8



= FIXED = FIXED ADJUSTMENTADJUSTMENTF

DPOC-08-X-X-X-XXXDPOC-08-X-X-X-XXX

DUAL PILOT OPERATED CHECK VALVE POPPETDUAL PILOT OPERATED CHECK VALVE POPPET

TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO. TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.

Elgin, IllinoisElgin, IllinoisMODEL NUMBERMODEL NUMBER

Reference: 520-P-011410-EN-00/09.2015

DPOC-08





A separate heavy spring assures fast return of the pilot piston forA separate heavy spring assures fast return of the pilot piston for

Industry common cavity.Industry common cavity.All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.

VALVE CAVITIES: #C0825, See Page 0-021.0.VALVE CAVITIES: #C0825, See Page 0-021.0.WEIGHT: 1.70 lb [.77 kg].WEIGHT: 1.70 lb [.77 kg].




that is required at port 3 to open the valve.that is required at port 3 to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaning

from port C1 or port C2.from port C1 or port C2.ports which are connected to ports V1 and V2 therefore opening flowports which are connected to ports V1 and V2 therefore opening flowthen blocks reverse flow until a pilot pressure is sensed at pilotthen blocks reverse flow until a pilot pressure is sensed at pilotThis valve allows free flow from port V1 to port C1 and V2 to C2This valve allows free flow from port V1 to port C1 and V2 to C2

or load holding device for high pressure applications.or load holding device for high pressure applications.pilot, dual hydraulic pilot operated check valve, for use as a blockingpilot, dual hydraulic pilot operated check valve, for use as a blockingThis unit is a cartridge type, guided poppet, with cross lineThis unit is a cartridge type, guided poppet, with cross line

DUAL PILOT OPERATED CHECK VALVEDUAL PILOT OPERATED CHECK VALVEPOPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.




©

Reference: 520-P-011410-EN-00/09.2015

DPOC-08

V1V1

C1C1

V2V2

C2C2

C1C1

PRESSURE DROP ( P)

PRESSURE DROP ( P)


PSIPSI0 5

50 50

100100

1010 1515BARBAR

2020

10 10

3,4 3,4

6,8 6,8

L/M (28,5 cSt)L/M (28,5 cSt)

[101,6][101,6]

150150

200200

2502501919

1.50" 1.50"

[92,1][92,1]

4.00" 4.00"

[38,1][38,1]

3.63" 3.63"

C2C2

3838 5757

60 60

30 3010,210,2

13,613,6

767617,017,0

[31,8][31,8] 1.25" 1.25"

.63" .63"[15,9][15,9]

[33,0][33,0] 1.30" 1.30"

V1V1

[20,1][20,1].795".795"

[42,3][42,3] 1.63" 1.63"

[76,2][76,2] 3.00" 3.00"

V2V2

V2V2

"M" MANUAL LOAD RELEASE"M" MANUAL LOAD RELEASE



SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE

PORTSPORTS


= G 3/8" BSPP = G 3/8" BSPP = G 1/2" BSPP= G 1/2" BSPP= SAE - #8= SAE - #8= SAE - #10= SAE - #10




ADJUSTMENTADJUSTMENTFM




Reference: 520-P-011420-EN-00/09.2015

DPOC-10






Industry common cavity.Industry common cavity.All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.All external carbon steel parts are plated for longer life against the elements.All external carbon steel parts are plated for longer life against the elements.Optional screw type manual load release is available.Optional screw type manual load release is available.a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.

VALVE CAVITIES: #C1025, See Page 0-022.0.VALVE CAVITIES: #C1025, See Page 0-022.0.WEIGHT: 1.85 lb [.92 kg].WEIGHT: 1.85 lb [.92 kg].




that is required at port 3 to open the valve.that is required at port 3 to open the valve.that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaningfrom port C1 or port C2.from port C1 or port C2.ports which are connected to ports V1 and V2 therefore opening flowports which are connected to ports V1 and V2 therefore opening flowthen blocks reverse flow until a pilot pressure is sensed at pilotthen blocks reverse flow until a pilot pressure is sensed at pilotThis valve allows free flow from port V1 to port C1 and V2 to C2This valve allows free flow from port V1 to port C1 and V2 to C2

or load holding device for high pressure applications.or load holding device for high pressure applications.pilot, dual hydraulic pilot operated check valve, for use as a blockingpilot, dual hydraulic pilot operated check valve, for use as a blockingThis unit is a cartridge type, guided poppet, with cross lineThis unit is a cartridge type, guided poppet, with cross line

DUAL PILOT OPERATED CHECK VALVEDUAL PILOT OPERATED CHECK VALVE





©

Reference: 520-P-011420-EN-00/09.2015

DPOC-10

V1V1

C1C1

V2V2

C2C2

C1C1

PRESSURE DROP ( P)

PRESSURE DROP ( P)


PSIPSI0 9

50 50

100100

1818 2727BARBAR

3636

10 10

3,4 3,4

6,8 6,8

L/M (28,5 cSt)L/M (28,5 cSt)

[127][127]

150150

200200

2502503434

1.90" 1.90"

[114,3][114,3]

5.00" 5.00"

[48,3][48,3]

4.50" 4.50"

C2C2

1021026868

60 60

30 3010,210,2

13,613,6

13613617,017,0

[41,3][41,3] 1.63" 1.63"

.81" .81"[20,7][20,7]

[42,4][42,4] 1.67" 1.67"

V1V1

[28,6][28,6] 1.13" 1.13"

[50,5][50,5] 1.99" 1.99"

[88,9][88,9] 3.50" 3.50"V2V2

V2V2

"M" MANUAL LOAD RELEASE"M" MANUAL LOAD RELEASE



SEALSSEALS

12 = 1.062"-12 UNF12 = 1.062"-12 UNF

BASICBASIC

SIZESIZE

PORTSPORTS


= G 1/2" BSPP= G 1/2" BSPP= G 3/4" BSPP = G 3/4" BSPP = SAE - #10= SAE - #10= SAE - #12= SAE - #12








Reference: 520-P-011430-EN-00/09.2015

DPOC-12





pilot, dual hydraulic pilot operated check valve, for use as a blockingpilot, dual hydraulic pilot operated check valve, for use as a blockingThis unit is a cartridge type, guided poppet, with cross lineThis unit is a cartridge type, guided poppet, with cross line

WEIGHT: 2.65 lb [1.21 kg] Aluminium. 5.25 lbs [2.38] Steel.WEIGHT: 2.65 lb [1.21 kg] Aluminium. 5.25 lbs [2.38] Steel.


FLOW: 36.0 GPM [136.3 l/m] nominal. See performance chart.FLOW: 36.0 GPM [136.3 l/m] nominal. See performance chart.

that it takes at least one-third of the load pressure held at port 1that it takes at least one-third of the load pressure held at port 1This pilot operated check valve has a 3 to 1 pilot ratio, meaningThis pilot operated check valve has a 3 to 1 pilot ratio, meaning

ports which are connected to ports V1 and V2 therefore opening flowports which are connected to ports V1 and V2 therefore opening flowthen blocks reverse flow until a pilot pressure is sensed at pilotthen blocks reverse flow until a pilot pressure is sensed at pilotThis valve allows free flow from port V1 to port C1 and V2 to C2This valve allows free flow from port V1 to port C1 and V2 to C2



VALVE CAVITIES: #C1225VALVE CAVITIES: #C1225

SKV-1228 Viton SKV-1228 VitonSEAL KIT: SKN-1228 Buna "N"SEAL KIT: SKN-1228 Buna "N"FILTRATION: 25 microns or better.FILTRATION: 25 microns or better.INSTALLATION: No restrictions.INSTALLATION: No restrictions.

PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]


or load holding device for high pressure applications.or load holding device for high pressure applications.

that is required at port 3 to open the valve.that is required at port 3 to open the valve.

from port C1 or port C2.from port C1 or port C2.

All cartridge valves are 100% functionally tested.All cartridge valves are 100% functionally tested.

Optional screw type manual load release is available.Optional screw type manual load release is available.a very quick, reliable and positve valve re-seat.a very quick, reliable and positve valve re-seat.



DUAL PILOT OPERATED CHECK VALVEDUAL PILOT OPERATED CHECK VALVE




©

Reference: 520-P-011430-EN-00/09.2015

DPOC-12

2

3

1

NOTE: FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-022.1.NOTE: FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-022.1.

PRESSURE DROP ( P)

PRESSURE DROP ( P)


PSIPSI0 3

2525

5050

6 9BARBAR

1212

1,71,7

3,43,4

L/M (28,5 cSt)L/M (28,5 cSt)

7575

100100

12512511,311,3

[46,9][46,9] 1.85" 1.85"

22,722,7 34,134,1

5,25,2

6,86,8

45,445,48,68,6

[21,5][21,5].847".847"

"F" FIXED"F" FIXED

[42,3][42,3] 1.63" 1.63"

[63,5][63,5] 2.50" 2.50"

[69,8][69,8] 2.75" 2.75"

HEX HEX[27,0][27,0] 1.06" 1.06"

2

3

1

PILOT RATIOPILOT RATIO2 = 2 TO 12 = 2 TO 13 = 3 TO 13 = 3 TO 1SEALSSEALS

10 = 7/8"-14 UNF10 = 7/8"-14 UNF

BASICBASIC

SIZESIZE





3 TO 1 RATIO3 TO 1 RATIO2 TO 1 RATIO2 TO 1 RATIO

PTCC-10-X-X-X-XPTCC-10-X-X-X-X


PILOT TO CLOSE, PILOT RATIO. PILOT TO CLOSE, PILOT RATIO.

PORTSPORTS 0 = CARTRIDGE ONLY 0 = CARTRIDGE ONLY 06TX = SAE - #6 06TX = SAE - #6 08TX = SAE - #8 08TX = SAE - #8 02BX = 1/4" BSPP 02BX = 1/4" BSPP 03BX = 3/8" BSPP 03BX = 3/8" BSPP



TORQUE:TORQUE:


Reference: 520-P-012020-EN-00/09.2015

PTCC-10





Optional screw type manual load release is available.Optional screw type manual load release is available.




INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]PILOT RATIO: 3 TO 1 OR 2 TO 1PILOT RATIO: 3 TO 1 OR 2 TO 1FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.PROOF PRESSURE: 10,000 PSI [700 Bar]PROOF PRESSURE: 10,000 PSI [700 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]OPERATING PRESSURE: 5,000 PSI [350 Bar]

a very quick, reliable and positve valve re-open.a very quick, reliable and positve valve re-open.A separate heavy spring assures fast return of the pilot piston forA separate heavy spring assures fast return of the pilot piston forA low friction seal on pilot piston is standard.A low friction seal on pilot piston is standard.

pressure held at port 2 to close the valve.pressure held at port 2 to close the valve.meaning that port 3 requires at least one-third or half of the loadmeaning that port 3 requires at least one-third or half of the loadThis pilot operated check valve has a 3 to 1 or 2 to 1 pilot ratio,This pilot operated check valve has a 3 to 1 or 2 to 1 pilot ratio,allowed from port 2 to port 1 when pressure is applied to port 3.allowed from port 2 to port 1 when pressure is applied to port 3.flow from port 2 to port 1 for holding a load. Flow will not beflow from port 2 to port 1 for holding a load. Flow will not beThis valve allows free flow from port 1 to port 2 and blocksThis valve allows free flow from port 1 to port 2 and blocks

or load holding device for high pressure applications.or load holding device for high pressure applications.hydraulic pilot operated check valve, for use as a blockinghydraulic pilot operated check valve, for use as a blockingThis unit is a SCREW-IN cartridge type, guided poppet,This unit is a SCREW-IN cartridge type, guided poppet,


POPPET TYPE, PILOT TO CLOSE, PILOT RATIO.POPPET TYPE, PILOT TO CLOSE, PILOT RATIO.




©

Reference: 520-P-012020-EN-00/09.2015

PTCC-10

Check Valves - Bucher Hydraulics · item no. 5207300004 = seal kit nbr (buna) ... 1919 3838 5757...

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Transcript of Check Valves - Bucher Hydraulics · item no. 5207300004 = seal kit nbr (buna) ... 1919 3838 5757...