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Revised 2/99 720

Screw In Cartridge Valves

Pressures to 350 bar (5000 psi) - Flows to 227 l/min (60 USgpm)

Vickers

Cartridge Valves

Check Valves

Introduction

For over 70 years, Vickers has provided its customers with quality products and inno- vative solutions for all their power and mo- tion control needs. The products featured in this catalog represent the very best in screw-in cartridge check valve technology.

Products in this catalog have been fatigue tested for one million cycles at 132% or 10 million cycles at 115% of rated pressure.

Two pressure ratings are shown for all products featured in this catalog. The typical application pressure rating is the maximum recommended operating pressure for the valve in a given system. The fatigue pressure rating is the pressure for the valve to be free for infinite life from metal fatigue.

We are committed to maintaining this posi- tion by offering the most comprehensive range of cartridge valves for industrial and mobile equipment.

This catalog gives basic specifications for many of Vickers screw-in cartridge check valves. Its purpose is to provide a quick, convenient reference tool when choosing Vickers cartridge valves or designing a system using these components.

The Vickers range of direct and pilot operated check valves provides the hydraulic circuit designer with a wide selection of cartridge and in-line products.

All cartridges have hardened and ground poppets (other than CV1-10(V)-B models which utilize a chrome steel ball) and sharp-edged ground steel seats. This provides an excellent product that is dirt-tolerant, has reliable seating, and is suitable for fast cycling with long life.

Direct operated check valves

Cartridges fit into industry standard cavities and may be supplied for installation in manifolds, or be provided in standard housings having SAE or BSPP ports suitable for in-line mounting.

A wide selection of cracking pressures is available from 0,21 to 20,7 bar (3 to 300 psi). Thus the opportunity exists to use the valves not only as

conventional check but also as low pressure relief valves.

Pilot operated check valves

These valves are used for:

Position load locking

As an alternative to counterbalance valves where neither the overrunning loads or release speed are factors in the application.

The POC-10 and POC-12 series of pilot-to-open check valves compliment the CBV-10 and CBV-12 counterbalance cartridges and are physically interchangeable with them. The POC’s provide a low cost alternative to load control when the dynamics of neither overrunning loads nor load release speed are factors to be considered in the design of the hydraulic circuit for the load to be controlled.

The pilot-to-open valves positively lock a load from port 1 to port 2 until pilot pressure applied to port 3 is sufficient to unseat the valve. This then permits flow from port 1 to port 2. The load can also be released through means of an optional screw type override.

The POC-10 covers flow up to 60 l/min ( USgpm). The POC-12 covers flow up to 114 l/min (30 USgpm). With infinite life qualification to a fatigue pressure rating of 310 bar (4500 psi), these POC valves are suitable for use in a broad range of load control applications with typical system operating pressures up to 350 bar ( psi). Tailoring of the circuit to gain energy savings while minimizing shock is obtained through the use of several standard cracking pressure ranges from 2,0 bar (30 psi) to 7 bar (100 psi). When anti-cavitation protection is required, the 0,30 bar (5 psi) spring should be used. For those applications where pilot pressure may not always be available, the valve can be ordered with an optional adjustable override.

Features and benefits of pilot

operated check valves:

 Simple load holding device. Low cost alternative to more complex solutions when overrunning loads are not present and / or control of load release speed is not required.  Provides high operational efficiency and low spring settings.  Valves are offered with a wide variety of standard housings with SAE and BSPP port options in the following configurations:

• In-line single
• In-line dual
• SAE, 4-bolt
• Close coupled, nipple mounted
• Gasket mounted single
• Gasket mounted dual

These valves can also be used in a C–10–3S or C–10–3S cavity.  Four standard cracking pressures permit energy savings, while tailoring the hydraulic system requirements to minimize shock.  Unique dual spring design provides high operational efficiency and a low pressure spring option for effective anti-cavitation protection.  Unique design provides compact package and low pressure drops that match or exceed current market expectations and provide for excellent repeatability and stability  3:1 pilot ratio satisfies simple load holding application requirements, while providing smooth operation and longer operating life.  Optional adjustable override releases the load for situations where pilot pressure is not always available.

Single pilot check

Also offered are SPC2-8 and SPC2- single pilot check valves with pressures to 240 bar (3500 psi) and flows to 23 l/min (6 gpm). These valves operate similar to the POC1 product but offer an opposite flow path which offers the designer a choice of pilot operated check valve when laying out a custom manifold for ease of design.

Supporting products

Vickers valves are available in a wide range of mounting configurations and porting options to provide flexibility in developing circuits. Housings are available in either aluminum 210 bar (3000 psi) or steel 350 bar (5000 psi) configurations. All are available with a choice of BSPP (ISO–0228/1) or SAE style ports.

CV1-10-B

Check valve

Description

The CV1-10-B is a ball type, screw-in cartridge check valve.

Operation

This valve remains closed until the spring bias is reached at port 1 at which time the poppet lifts off the seat and allows flow from port 1 to port 2.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F)

Typical application pressure (all ports)..................... .210 bar (3000 psi)

Cartridge fatigue pressure (infinite life)..................... .210 bar (3000 psi) Rated flow........................................... 45 l/min (12 USgpm)

Free flow cracking pressure @1 l/min (0.25 USgpm)............ 0,34 bar (5 psi)

Internal leakage....... Port 2 to 1 5 drops / min. maximum @210 bar (3000 psi)

Temperature range.......................... .–40 to 120C (– 40  to 248F)

Cavity............................................. .C– 10 – 2 (See page 40)

Fluids........................... .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc.

Filtration........................................ .Cleanliness code 18/ 16/

Standard housing materials..................................... .Aluminum

Weight cartridge only...................................... 0,08 kg (0.17 lb.)

Seal kit.................................................. .565803 Buna–N 566086 Viton

Pressure Drop Curve

Cartridge only

Sectional View

Functional Symbol

Flow in l/min (21,8 cSt oil @ 49  C)

Flow in USgpm (105 SUS oil @ 120  F)

Pressure Drop psi Pressure Drop bar

Viton is a registered trademark of E.I.DuPont

Model Code CV1–10–B

Function

CV1 – Check valve

Size

10 – 10 Size

Seals

Blank – Buna-N V – Viton

Seating type

B – Ball

1

2

3

4

Free flow cracking pressure

5 – 0,34 bar (5 psi) (Anti-cavitation)

1 2 3 4 5 6

0.875″–14 Thd.

25,4 (1.0) hex

6

Dimensions

mm (inch)

5

3B 3/8” BSPP

6T SAE 6

2G 1/4” BSPP

3G 3/8” BSPP

6H SAE 6

8H SAE 8

Housing number Aluminum

Light duty

Code Port size Aluminum Fatigue rated

Torque cartridge in housing 47–54 Nm (35–40 lbf ft)

(See pages 42 & 43 for housing details.)

Port size

O – Cartridge only

Model Code CV3-8-P

Function

CV3 – Check valve

Size

8 – 8 Size

Seals

Blank – Buna-N V – Viton

Style

P – Poppet

Valve housing material Omit for cartridge only

A – Aluminum S – Steel

7

6

5

4

1 2 3 4 5 6 7

1

2

3

4T SAE 4

6T SAE 6

8T SAE 8

2G 1/4” BSPP

3G 3/8” BSPP

0.750″–16 Thd.

22,2 (0.87) hex

Cracking pressure

004 – 0,28 bar (4 psi) 010 – 0,70 bar (10 psi) 025 – 1,70 bar (25 psi) 060 – 4,00 bar (60 psi)

Dimensions

mm (inch)

Housing number Aluminum Steel Fatigue rated 02 – 160730 02 – 160731 02 – 160732 02 – 160727 02 – 160728

Fatigue rated 02 – 160736 02 – 160737 02 – 160738 02 – 160733 02 – 160734

Code Port size

Torque cartridge in housing 34 – 41 Nm (25–30 lbf ft)

(See pages 43 & 44 for housing details.)

Port size

O – Cartridge only

Aluminum housings can be used for pressures up to 210 bar (3000 psi) Steel housings must be used for operating pressures above 210 bar (3000 psi)

CV1-10-P

Check valve

Description

The CV1-10-P is a poppet type, screw-in cartridge check valve.

Operation

This valve remains closed until the spring bias is reached at port 1 at which time the poppet lifts off the seat and allows flow from port 1 to port 2.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F)

Typical application pressure (all ports)..................... .210 bar (3000 psi)

Cartridge fatigue pressure (infinite life)..................... .210 bar (3000 psi) Rated flow........................................... 45 l/min (12 USgpm)

Free flow cracking pressure @1 l/min (0.25 USgpm)........ 5 – 0,34 bar (5 psi) 15 – 1,03 bar (15 psi) 30 – 2,07 bar (30 psi) 65 – 4,48 bar (65 psi) 100 – 6,90 bar (100 psi) 300 – 20,7 bar (300 psi)

Internal leakage........ Port 2 to 1 5 drops / min. maximum @210 bar (3000 psi)

Temperature range.......................... .–40 to 120C (– 40  to 248F)

Cavity............................................. .C– 10 – 2 (See page 40)

Fluids........................... .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc.

Filtration........................................ .Cleanliness code 18/ 16/

Standard housing materials..................................... .Aluminum

Weight cartridge only...................................... 0,08 kg (0.17 lb.)

Seal kit.................................................. .565803 Buna–N 566086 Viton

CV1-10-P-O-

CV1-10-P-O-

CV1-10-P-O-

Sectional View

Functional Symbol

Pressure Drop Curves

Cartridge only

Flow in l/min (21,8 cSt oil @ 49  C)

Flow in USgpm (105 SUS oil @ 120  F)

Pressure Drop bar

A –

B –

C –

Viton is a registered trademark of E.I.DuPont

A

B

C

Pressure Drop psi

CV3-10-P

Check valve

Description

The CV3-10-P is a poppet type, screw-in cartridge check valve.

Operation

This valve remains closed until the spring bias is reached at port 1 at which time the poppet lifts off the seat and allows flow from port 1 to port 2.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F)

Typical application pressure (all ports)..................... .210 bar (3000 psi)

Cartridge fatigue pressure (infinite life)..................... .210 bar (3000 psi)

Rated flow........................................... 76 l/min (20 USgpm)

Free flow cracking pressure @1 l/min (0.25 USgpm)........ 3 – 0,21 bar (3 psi) 10 – 0,69 bar (10 psi) 20 – 1,38 bar (20 psi) 40 – 2,76 bar (40 psi) 65 – 4,48 bar (65 psi) 100 – 6,90 bar (100 psi) 180 – 12,40 bar (180 psi) 210 – 14,50 bar (210 psi)

Internal leakage........ Port 2 to 1 5 drops / min. maximum @210 bar (3000 psi)

Temperature range.......................... .–40 to 120C (– 40  to 248F)

Cavity............................................. .C– 10 – 2 (See page 40)

Fluids........................... .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc.

Filtration........................................ .Cleanliness code 18/ 16/

Standard housing materials..................................... .Aluminum

Weight cartridge only...................................... 0,08 kg (0.17 lb.)

Seal kit.................................................. .565803 Buna–N 566086 Viton

A – CV3-10-P-O-

B – CV3-10-P-O-

Sectional View

Functional Symbol

C – CV3-10-P-O-

Pressure Drop Curves

Cartridge only

Flow in l/min (21,8 cSt oil @ 49  C)

Flow in USgpm (105 SUS oil @ 120  F)

Pressure Drop psi Pressure Drop bar

Viton is a registered trademark of E.I.DuPont

A

B

C

Model Code CV3-10-P

Function

CV3 – Check valve

Size

10 – 10 Size

Seals

Blank – Buna-N V – Viton

Style

P – Poppet

1

2

3

4

1 2 3 4 5 6

0.875″–14 Thd.

25,4 (1.0) hex

Dimensions

mm (inch)

5

6

3B 3/8” BSPP

6T SAE 6

2G 1/4” BSPP

3G 3/8” BSPP

6H SAE 6

8H SAE 8

Housing number Aluminum

Light duty

Code Port size Aluminum Fatigue rated

Torque cartridge in housing 47 – 54 Nm (35–40 lbf ft)

(See pages 42 & 43 for housing details.)

Port size

O – Cartridge only

Free flow cracking pressure

3 – 0,21 bar (3 psi) (Anti-cavitation) 10 – 0,69 bar (10 psi) (Anti-cavitation) 20 – 1,38 bar (20 psi) 40 – 2,76 bar (40 psi) 65 – 4,48 bar (65 psi) 100 – 6,90 bar (100 psi) 180 – 12,4 bar (180 psi) 210 – 14,5 bar (210 psi)

Model Code CV16-10-P

Function

CV16 – Check valve

Size

10 – 10 Size

Seals

Blank – Buna-N V – Viton

Style

P – Poppet

Valve housing material Omit for cartridge only

A – Aluminum S – Steel

3/8” BSPP

SAE 6

SAE 8

1/4” BSPP

3/8” BSPP

SAE 6

SAE 8

1

2

3

4

Free flow cracking pressure

5 – 0,34 bar (5 psi) (Anti-cavitation)) 15 – 1,03 bar (15 psi) 25 – 1,70 bar (25 psi) 50 – 3,40 bar (50 psi)

0.875″–14 Thd.

25,4 (1.0) hex

Dimensions

mm (inch)

6

3B

6T

8T

2G

3G

6H

8H

Housing number Aluminum

Light duty

Code Port size Aluminum Fatigue rated

Torque cartridge in housing A - 47–54 Nm (35–40 lbf ft) S - 68–75 Nm (50–55 lbf ft)

(See pages 42 – 44 for housing details.)

1 2 3 4 5 6 7

5

Fatigue rated

Steel

7 Aluminum housings can be used for pressures up to 210 bar (3000 psi) Steel housings must be used for operating pressures above 210 bar (3000 psi)

Port size

O – Cartridge only

WARNING:

The cavity should be machined to the 14,29 (0.562) maximum diameter and 36,00 (1.417) maximum depth (See Cavity, page 40).

CV11-

Check valve

Functional symbol

Sectional view

Description

The CV11-12 is a poppet type, screw-in cartridge check valve.

Operation

This valve remains closed until the spring bias is reached at port 1 at which time the poppet lifts off the seat and allows flow from port 1 to port 2.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F) Typical application pressure (all ports)........................ .350 bar (5000 psi) Cartridge fatigue pressure (infinite life)......................... 350 bar (5000 psi) Rated flow............................................. .114 l/min (30 USgpm) Free flow cracking pressure @1 l/min (0.25 USgpm)........ 2.5 – 0,17 bar (2.5 psi) 5.0 – 0,35 bar (5.0 psi) 10 – 0,69 bar (10 psi) 20 – 1,38 bar (20 psi) 40 – 2,76 bar (40 psi) 80 – 5,50 bar (80 psi) 160 – 11,0 bar (160 psi) Internal leakage........... Port 2 to 1 5 drops / min. maximum @350 bar (5000 psi) Hysteresis.......................................... .Less than 0,35 bar (5 psi)

Temperature range............................. .–40 to 120C (– 40  to 248F)

Cavity..................................... .C– 12 – 2 or C– 12 – 2U (See page 40) Fluids.............................. .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc. Filtration........................................... .Cleanliness code 18/ 16/ Standard housing materials.................................. Aluminum or steel Weight cartridge only......................................... 0,24 kg (0.54 lb.) Seal kit.................................................. 02 – 165889 Buna–N 02 – 165888 Viton

Pressure Drop Curves

Flow in l/min (21,8 cSt oil @ 49  C)

Flow in USgpm (105 SUS oil @ 120  F)

Cartridge only

Viton is a registered trademark of E.I.DuPont

Pressure Drop bar

A – CV11-12-P-O-

B – CV11-12-P-O-

C – CV-11-12-P-O-2.

A

B

C

Pressure Drop psi

CV1-16-P

Check valve

Description

The CV1-16-P is a poppet type, screw-in cartridge check valve.

Operation

This valve remains closed until the spring bias is reached at port 1 at which time the poppet lifts off the seat and allows flow from port 1 to port 2.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F) Typical application pressure (all ports)..................... .210 bar (3000 psi)

Cartridge fatigue pressure (infinite life)..................... .210 bar (3000 psi)

Rated flow.......................................... 151 l/min (40 USgpm)

Free flow cracking pressure @1 l/min (0.25 USgpm)....... 5 – 0,34 bar (5 psi) 20 – 1,34 bar (20 psi) 30 – 2,07 bar (30 psi) 50 – 3,45 bar (50 psi)

Internal leakage........ Port 2 to 1 5 drops / min maximum @210 bar (3000 psi)

Temperature range.......................... .–40 to 120C (– 40  to 248F)

Cavity............................................. .C– 16 – 2 (See page 40) Fluids........................... .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc.

Filtration........................................ .Cleanliness code 18/ 16/ Standard housing materials..................................... .Aluminum

Weight cartridge only...................................... 0,26 kg (0.58 lb.)

Seal kit.................................................. .565810 Buna–N 889609 Viton

CV1-16-P-O-

CV1-16-P-O-

CV1-16-P-O-

Sectional View

Functional Symbol

Pressure Drop Curves

Cartridge only

Flow in l/min (21,8 cSt oil @ 49  C)

Flow in USgpm (105 SUS oil @ 120  F)

Pressure Drop psi Pressure Drop bar

Viton is a registered trademark of E.I.DuPont

A –

B –

C –

A

B

C

Model Code CV1-16-P

Function

CV1 – Check valve

Size

16 – 16 Size

Seals

Blank – Buna-N V – Viton

Style

P – Poppet

38,1 (1.5) hex

1

2

3

4

Free flow cracking pressure

5 – 0,34 bar (5 psi) (Anti-cavitation) 20 – 1,34 bar (20 psi) 30 – 2,07 bar (30 psi) 50 – 3,45 bar (50 psi)

1 2 3 4 5 6

mm (inch)

1.312″–12 Thd.

6

Dimensions

5

6B 3/4” BSPP

12T SAE 12

4G 1/2” BSPP

6G 3/4” BSPP

10H SAE 10

12H SAE 12

Housing number Aluminum

Light duty

Code Port size Aluminum Fatigue rated

Torque cartridge in housing 108 – 122 Nm (80–90 lbf ft)

(See pages 42 & 43 for housing details.)

Port size

O – Cartridge only

Model Code CV2-20-P

Function

CV2 – Check valve

Size

20 – 20 Size

Seals

Blank – Buna-N V – Viton

Style

P – Poppet

1

2

3

4

Free flow cracking pressure

5 – 0,34 bar (5 psi) (Anti-cavitation) 15 – 1,03 bar (15 psi) 30 – 2,07 bar (30 psi) 60 – 4,14 bar (60 psi) 100 – 6.90 bar (100 psi)

1 2 3 4 5 6

mm (inch)

1.625″–12 Thd.

47,6 (1.87) hex

6

Dimensions

(^5) Port size

O – Cartridge only

8B 1 ” BSPP

16T SAE 16

6G 3/4” BSPP

8G 1 ” BSPP

12H SAE 12

16H SAE 16

Housing number Aluminum

Light duty

Code Port size Aluminum Fatigue rated

Torque cartridge in housing 128 – 155 Nm (95–115 lbf ft)

(See pages 42 & 43 for housing details.)

SPC2-

Single pilot check valve

Sectional View

Description

The SPC2–8 is a poppet type, pilot-to-open, screw-in cartridge type check valve.

Operation

The SPC2–8 allows flow from port 2 to port 3 when the spring bias is overcome. Flow is blocked from port 3 to port 2 until sufficient pilot pressure is applied at port 1.

Ratings and specifications

Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49  C (120  F) Typical application pressure (all ports)...................... 240 bar (3500 psi) Cartridge fatigue pressure (infinite life)...................... 240 bar (3500 psi) Rated flow............................................ .19 l/min (5 USgpm) Pilot ratio........................................................... .3: Cracking pressure...................................... 15 – 1,0 bar (15 psi) 35 – 2,4 bar (35 psi) 65 – 4,5 bar (65 psi) Internal leakage. All leakage rates @240 bar (3500 psi). Port 3 to 2......................................... .5 drops / min maximum Port 2 to 1 Unsealed piston.. .140 cc/min maximum, zero leakage with sealed piston. _Unsealed piston supplied with 15 spring option only._

Temperature range............................ .-40 to 120C (-40 to 248F)

Cavity............................................... .C– 8 – 3 (See page 41) Fluids........................... .All general purpose hydraulic fluids such as: MIL–H–5606, SAE 10, SAE 20, etc. Filtration........................................ .Cleanliness code 18/ 16/ Standard housing materials............................... .Aluminum or steel Weight cartridge only..................................... .0,07 kg (0.15 lbs.) Seal kits............................................... 02 – 173326 Buna N 02 – 173327 Viton

Pressure Drop Curves

Flow in USgpm (105 SUS oil oil @ 120  F)

Flow in l/min (21,8 cSt oil @ 49  C)

65 psi (port 2 to 3) 35 psi (port 2 to 3) 15 psi (port 2 to 3) Port 3 to 2 (piloted open)

Functional Symbol

Cartridge only

Pressure Drop psi Pressure Drop bar

Viton is a registered trademark of E.I.DuPont

A –

B –

C –

D –

WARNING: Do not use Single pilot check valves in load holding applications where either overrunning loads are possible; or, load release speed is critical. Failure to observe these guidelines may result in bodily injury or damage to equipment.

A

B

C

D