Advanced Specialty Gas Equipment

CV5600 Series Check ValvesVALVES
CV5600 Series
Check Valves

Check valves ensure that gases or liquids flow in one direction only. When used on the outlet line of pressure regulators, they prevent back flow of fluids into the regulator. When used in cylinder pigtails, they prevent gas flow from one cylinder into another on the same manifold. They also stop air from entering the pigtail and manifold when a cylinder is removed.

These check valves are bubble-tight against any back pressure.

Note: Check valves are also available housed within a CGA connection. 


Valves CV5600 Serives Check Valves Specifications
Maximum Operating Pressure:

Cracking Pressure:

Flow Coefficient:

Inlet and Outlet Connections:

Approximate Weight: 5 oz

Materials of Construction
Body:
Spring and Poppet:
  Brass and SS Valves: Type 316L SS
  Monel® Valve: Monel® R-405
Seals:

Table I




Part No.
Maximum
Operating
Pressure
(psig)
Cracking
Pressure
(psig)
Connections

Body
Material


Seal
Material

Flow
Coefficient (Cv)

Inlet

Outlet
CV5651 3000 1.0 1/4" NPT male 1/4" NPT male Brass Viton® 0.5
CV5652N 3000 1.0 1/4" NPT female 1/4" NPT female Brass Viton® 0.35
CV5653 3000 1.0 1/4" compression 1/4" compression Brass Viton® 0.5
CV5654 3000 5.0 1/4" NPT male 1/4" NPT female Brass Viton® 0.5
CV5660 6000 1.0 1/4" NPT male 1/4" NPT male 316 SS Buna-N 0.5
CV5661 6000 1.0 1/4" NPT male 1/4" NPT male 316 SS Viton® 0.5
CV5663N 3000 1.0 1/4" NPT female 1/4" NPT female 316 SS Viton® 0.35
CV5665N 3000 1.0 1/4" NPT female 1/4" NPT female 316 SS Neoprene 0.35
CV5666 6000 1.0 1/4" compression 1/4" compression 316 SS Viton® 0.5
CV5667 3000 1.0 1/4" compression 1/4" compression 316 SS Kalrez® 0.42
CV5668 6000 1.0 1/4" compression 1/4" compression 316 SS Buna-N 0.5
CV5669 6000 5.0 1/4" NPT male 1/4" NPT female 316 SS Viton® 0.5
CV5670 3000 1.0 1/4" compression 1/4" NPT male Brass Viton® 0.5
CV5672 6000 1.0 1/4" compression 1/4" NPT male 316 SS Viton® 0.5
CV5674 3000 1.0 1/4" male vacuum* 1/4" male vacuum* 316L SS Viton® 0.36
CV5675 3000 1.0 1/4" male vacuum* 1/4" male vacuum* 316L SS Kalrez® 0.36
CV5676N 3000 1.0 1/4" NPT female 1/4" NPT female Monel® Viton® 0.35
V5677N 3000 1.0 1/4" NPT female 1/4" NPT female 316 SS EPR 0.35
* Connection is compatible with 1/4" VCR® fittings.