This valve has a 3/4-14 NGT inlet thread which is common to most cascade bottles. Outlet is a CGA #702 (Ultra High Pressure Breathing Air) with a working pressure of 6,400 psi. Be sure to select the proper burst disc pressure to match the DOT cylinder this valve is to be used on. This is a GV series valve. For full rebuild kits, order #46137. For replacement Bonnet and Stem only order #46135VS-GV347. For replacement seat plug only order #4615SP-GV.

Adapts CGA 346 (Breathing Air - 3,000psi) to 1/4" NPT female. Screw this adapter onto a female CGA 346 fitting (such as a SCBA whip) to convert it to a 1/4 NPT female connection.

Adapts CGA 346 (Breathing Air - 3,000psi) to 1/4" NPT male. Screw this adapter onto a female CGA 346 fitting (such as a SCBA whip) to convert it to a 1/4 NPT male connection.

Adapts CGA 347 (Breathing Air - 5,500psi) to 1/4" NPT female. Screw this adapter onto a female CGA 347 fitting (such as a SCBA whip) to convert it to a 1/4 NPT female connection.

Adapts CGA 347 (Breathing Air - 5,500psi) to 1/4" NPT female. Screw this adapter onto a female CGA 347 fitting (such as a SCBA whip) to convert it to a 1/4 NPT female connection.

Adapts CGA 347 (Breathing Air - 5,500psi) to 1/4" NPT male. Screw this adapter onto a female CGA 347 fitting (such as a SCBA whip) to convert it to a 1/4 NPT male connection.

Adapts CGA 540 (Oxygen - 3,000psi) to 1/4" NPT female. Screw this adapter onto a female CGA 540 fitting to convert it to a 1/4 NPT female connection.

Adapts CGA 540 (Oxygen - 3,000psi) to 1/4" NPT male. Screw this adapter onto a female CGA 540 fitting to convert it to a 1/4 NPT male connection.

Adapts CGA 580 (helium / argon) (inert gas) to 1/4" NPT male. Screw this adapter onto a male CGA 580 fitting to convert it to a 1/4 NPT male connection. Provided Oxy Clean.

Adapts CGA 580 (helium / argon) (inert gas) to 1/4" NPT female. Screw this adapter onto a male CGA 580 fitting to convert it to a 1/4 NPT female connection. Provided Oxy Clean.

CGA 590 female to 1/4" NPT female.

This versatile, aluminum check valve has male and female 1/4 NPT ports. Standard configuration flows from the male port to the female port. However, the spring and poppet can be reversed to allow flow from the female port to the male port. 6,000 psi working pressure. Valve will open at 5 - 10 psi.