Parker's C Series check valves are designed for uni-directional flow control of critical fluids and gases.
Part
|
Connection 1 Size
|
Connection 2 Size
|
Cracking Pressure
(psi)
|
Seal Material
|
Body Material
|
Maximum Working
Pressure (psi)
|
Maximum Working
Pressure (Bar)
|
4M-C4L-1/3-EPR-B
|
1/4"
|
1/4"
|
44199
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-1/3-EPR-SS
|
1/4"
|
1/4"
|
44199
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-1/3-NE-B
|
1/4"
|
1/4"
|
44199
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-1/3-NE-SS
|
1/4"
|
1/4"
|
44199
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-1/3-SS
|
1/4"
|
1/4"
|
44199
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-10-B
|
1/4"
|
1/4"
|
10
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-10-BN-B
|
1/4"
|
1/4"
|
10
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-10-BN-SS
|
1/4"
|
1/4"
|
10
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-10-EPR-B
|
1/4"
|
1/4"
|
10
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-10-EPR-SS
|
1/4"
|
1/4"
|
10
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-10-NE-B
|
1/4"
|
1/4"
|
10
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-10-NE-SS
|
1/4"
|
1/4"
|
10
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-10-SS
|
1/4"
|
1/4"
|
10
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-100-B
|
1/4"
|
1/4"
|
100
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-100-BN-B
|
1/4"
|
1/4"
|
100
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-100-BN-SS
|
1/4"
|
1/4"
|
100
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-100-EPR-B
|
1/4"
|
1/4"
|
100
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-100-EPR-SS
|
1/4"
|
1/4"
|
100
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-100-NE-B
|
1/4"
|
1/4"
|
100
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-100-NE-SS
|
1/4"
|
1/4"
|
100
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-100-SS
|
1/4"
|
1/4"
|
100
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-25-B
|
1/4"
|
1/4"
|
25
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-25-BN-B
|
1/4"
|
1/4"
|
25
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-25-BN-SS
|
1/4"
|
1/4"
|
25
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-25-EPR-B
|
1/4"
|
1/4"
|
25
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-25-EPR-SS
|
1/4"
|
1/4"
|
25
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-25-NE-B
|
1/4"
|
1/4"
|
25
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-25-NE-SS
|
1/4"
|
1/4"
|
25
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-25-SS
|
1/4"
|
1/4"
|
25
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-5-B
|
1/4"
|
1/4"
|
5
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-5-BN-B
|
1/4"
|
1/4"
|
5
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-5-BN-SS
|
1/4"
|
1/4"
|
5
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-5-EPR-B
|
1/4"
|
1/4"
|
5
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-5-EPR-SS
|
1/4"
|
1/4"
|
5
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-5-NE-B
|
1/4"
|
1/4"
|
5
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-5-NE-SS
|
1/4"
|
1/4"
|
5
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-5-SS
|
1/4"
|
1/4"
|
5
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-50-B
|
1/4"
|
1/4"
|
50
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-50-BN-B
|
1/4"
|
1/4"
|
50
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-50-BN-SS
|
1/4"
|
1/4"
|
50
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-50-EPR-B
|
1/4"
|
1/4"
|
50
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-50-EPR-SS
|
1/4"
|
1/4"
|
50
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-50-NE-B
|
1/4"
|
1/4"
|
50
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-50-NE-SS
|
1/4"
|
1/4"
|
50
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-50-SS
|
1/4"
|
1/4"
|
50
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-75-B
|
1/4"
|
1/4"
|
75
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4M-C4L-75-BN-B
|
1/4"
|
1/4"
|
75
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4M-C4L-75-BN-SS
|
1/4"
|
1/4"
|
75
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-75-EPR-B
|
1/4"
|
1/4"
|
75
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4M-C4L-75-EPR-SS
|
1/4"
|
1/4"
|
75
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-75-NE-B
|
1/4"
|
1/4"
|
75
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4M-C4L-75-NE-SS
|
1/4"
|
1/4"
|
75
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4M-C4L-75-SS
|
1/4"
|
1/4"
|
75
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1-B
|
1/4"
|
1/4"
|
1
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1-BN-B
|
1/4"
|
1/4"
|
1
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1-BN-SS
|
1/4"
|
1/4"
|
1
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1-EPR-B
|
1/4"
|
1/4"
|
1
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1-EPR-SS
|
1/4"
|
1/4"
|
1
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1-NE-B
|
1/4"
|
1/4"
|
1
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1-NE-SS
|
1/4"
|
1/4"
|
1
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1-SS
|
1/4"
|
1/4"
|
1
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1/3-B
|
1/4"
|
1/4"
|
44199
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1/3-BN-B
|
1/4"
|
1/4"
|
44199
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1/3-BN-SS
|
1/4"
|
1/4"
|
44199
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1/3-EPR-B
|
1/4"
|
1/4"
|
44199
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1/3-EPR-SS
|
1/4"
|
1/4"
|
44199
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1/3-NE-B
|
1/4"
|
1/4"
|
44199
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-1/3-NE-SS
|
1/4"
|
1/4"
|
44199
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-1/3-SS
|
1/4"
|
1/4"
|
44199
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-10-B
|
1/4"
|
1/4"
|
10
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-10-BN-B
|
1/4"
|
1/4"
|
10
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-10-BN-SS
|
1/4"
|
1/4"
|
10
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-10-EPR-B
|
1/4"
|
1/4"
|
10
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-10-EPR-SS
|
1/4"
|
1/4"
|
10
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-10-NE-B
|
1/4"
|
1/4"
|
10
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-10-NE-SS
|
1/4"
|
1/4"
|
10
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-10-SS
|
1/4"
|
1/4"
|
10
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-100-B
|
1/4"
|
1/4"
|
100
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-100-BN-B
|
1/4"
|
1/4"
|
100
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-100-BN-SS
|
1/4"
|
1/4"
|
100
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-100-EPR-B
|
1/4"
|
1/4"
|
100
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-100-EPR-SS
|
1/4"
|
1/4"
|
100
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-100-NE-B
|
1/4"
|
1/4"
|
100
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-100-NE-SS
|
1/4"
|
1/4"
|
100
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-100-SS
|
1/4"
|
1/4"
|
100
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-25-B
|
1/4"
|
1/4"
|
25
|
Fluorocarbon Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-25-BN-B
|
1/4"
|
1/4"
|
25
|
Nitrile Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-25-BN-SS
|
1/4"
|
1/4"
|
25
|
Nitrile Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-25-EPR-B
|
1/4"
|
1/4"
|
25
|
Ethylene Propylene
Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-25-EPR-SS
|
1/4"
|
1/4"
|
25
|
Ethylene Propylene
Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-25-NE-B
|
1/4"
|
1/4"
|
25
|
Neoprene Rubber
|
Brass
|
3000
|
207
|
4Z-C4L-25-NE-SS
|
1/4"
|
1/4"
|
25
|
Neoprene Rubber
|
316 Stainless Steel
|
6000
|
414
|
4Z-C4L-25-SS
|
1/4"
|
1/4"
|
25
|
Fluorocarbon Rubber
|
316 Stainless Steel
|
6000
|
414
|