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Check Valve - Inline - COCheck Valve - Inline - CO

Check Valve - Inline - CO

Parker Inline Check Valve - CO Series

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Showing 1 - 20 of 95
Part # Availability Price/UOM
++ 4A-CO4L-1/3-BN-SS Lead Time Required $118.15
4A-CO4L-1/3-BN-SS-C3 N/A Call to Order
++ 4A-CO4L-1-BN-SS Lead Time Required $104.43
++ 4A-CO4L-5-BN-SS Lead Time Required $138.32
++ 4A-CO4L-5-BN-SS-C3 Lead Time Required $160.63
++ 4A-CO4L-10-BN-SS Lead Time Required $104.43
++ 4A-CO4L-10-BN-SS-C3 Lead Time Required $169.17
++ 4A-CO4L-25-BN-SS Lead Time Required $138.80
++ 4A-CO4L-50-BN-SS Lead Time Required $138.80
++ 4A-CO4L-75-BN-SS Lead Time Required $138.80
++ 4A-CO4L-100-BN-SS Lead Time Required $145.95
++ 4A-CO4L-100-BN-SS-C3 Lead Time Required $160.63
++ 4F-CO4L-1/3-BN-SS Lead Time Required $133.46
++ 4F-CO4L-1-BN-SS Lead Time Required $99.19
++ 4F-CO4L-5-BN-SS Lead Time Required $133.46
++ 4F-CO4L-10-BN-SS Lead Time Required $132.96
++ 4F-CO4L-75-BN-SS Lead Time Required $132.96
++ 4F-CO4L-100-BN-SS Lead Time Required $133.46
++ 4M-CO4L-1/3-BN-SS Lead Time Required $131.87
++ 4M-CO4L-1-BN-SS In Stock $131.87
UOM Inlet port 1 Outlet port 2 Material - Seats Material - Seals Cracking pressure Material
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 1/3 psi (0.02 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 1/3 psi (0.02 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 1 psi (0.07 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 5 psi (0.4 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 5 psi (0.4 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 10 psi (0.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 10 psi (0.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 25 psi (1.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 50 psi (3.5 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 75 psi (5.2 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 100 psi (6.9 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Nitrile rubber 100 psi (6.9 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 1/3 psi (0.02 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 1 psi (0.07 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 5 psi (0.4 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 10 psi (0.7 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 75 psi (5.2 bar) 316 Stainless steel
EA 1/4" female NPT 1/4" female NPT Nitrile rubber Nitrile rubber 100 psi (6.9 bar) 316 Stainless steel
EA 1/4" male NPT 1/4" male NPT Nitrile rubber Nitrile rubber 1/3 psi (0.02 bar) 316 Stainless steel
EA 1/4" male NPT 1/4" male NPT Nitrile rubber Nitrile rubber 1 psi (0.07 bar) 316 Stainless steel
4A-CO4L-1/3-BN-SS
Lead Time Required
$118.15

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

1/3 psi (0.02 bar)

316 Stainless steel

4A-CO4L-1/3-BN-SS-C3
N/A
Call to Order

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

1/3 psi (0.02 bar)

316 Stainless steel

4A-CO4L-1-BN-SS
Lead Time Required
$104.43

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

1 psi (0.07 bar)

316 Stainless steel

4A-CO4L-5-BN-SS
Lead Time Required
$138.32

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

5 psi (0.4 bar)

316 Stainless steel

4A-CO4L-5-BN-SS-C3
Lead Time Required
$160.63

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

5 psi (0.4 bar)

316 Stainless steel

4A-CO4L-10-BN-SS
Lead Time Required
$104.43

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

10 psi (0.7 bar)

316 Stainless steel

4A-CO4L-10-BN-SS-C3
Lead Time Required
$169.17

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

10 psi (0.7 bar)

316 Stainless steel

4A-CO4L-25-BN-SS
Lead Time Required
$138.80

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

25 psi (1.7 bar)

316 Stainless steel

4A-CO4L-50-BN-SS
Lead Time Required
$138.80

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

50 psi (3.5 bar)

316 Stainless steel

4A-CO4L-75-BN-SS
Lead Time Required
$138.80

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

75 psi (5.2 bar)

316 Stainless steel

4A-CO4L-100-BN-SS
Lead Time Required
$145.95

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

100 psi (6.9 bar)

316 Stainless steel

4A-CO4L-100-BN-SS-C3
Lead Time Required
$160.63

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Nitrile rubber

100 psi (6.9 bar)

316 Stainless steel

4F-CO4L-1/3-BN-SS
Lead Time Required
$133.46

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

1/3 psi (0.02 bar)

316 Stainless steel

4F-CO4L-1-BN-SS
Lead Time Required
$99.19

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

1 psi (0.07 bar)

316 Stainless steel

4F-CO4L-5-BN-SS
Lead Time Required
$133.46

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

5 psi (0.4 bar)

316 Stainless steel

4F-CO4L-10-BN-SS
Lead Time Required
$132.96

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

10 psi (0.7 bar)

316 Stainless steel

4F-CO4L-75-BN-SS
Lead Time Required
$132.96

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

75 psi (5.2 bar)

316 Stainless steel

4F-CO4L-100-BN-SS
Lead Time Required
$133.46

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" female NPT

1/4" female NPT

Nitrile rubber

Nitrile rubber

100 psi (6.9 bar)

316 Stainless steel

4M-CO4L-1/3-BN-SS
Lead Time Required
$131.87

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" male NPT

1/4" male NPT

Nitrile rubber

Nitrile rubber

1/3 psi (0.02 bar)

316 Stainless steel

4M-CO4L-1-BN-SS
In Stock
$131.87

UOM:

Inlet port 1:

Outlet port 2:

Material - Seats:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" male NPT

1/4" male NPT

Nitrile rubber

Nitrile rubber

1 psi (0.07 bar)

316 Stainless steel

Showing 1 - 20 of 95
Parker CO Series Check Valves are designed for uni-directional flow control of fluids and gases in industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp and paper, power and utilities. The CO Series is particularly suitable for applications requiring high integrity leak rates and re-sealing capabilities.

Application: In the key markets of chemical & refining, food, beverage & dairy, medical & dental, microelectronics, oil & gas, and power generation.
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