Most GC systems require that the pressure is regulated between the source (gas cylinder or gas generator) and the instrument. Select a pressure regulator based on the application:
2-Stage Gas Cylinder Regulators: Reduce pressure in two steps, enabling the regulator to uniformly control the output pressure despite the decreasing input pressure from the gas cylinder. An in-line regulator is typically not required downstream. Choose a 2-stage regulator when the gas cylinder is within 10 feet of the instrument. 3000 psig maximum inlet pressure
1-Stage Gas Cylinder Regulators: Reduce pressure in a single step. Some pressure change can occur downstream as the gas cylinder pressure drops. Choose a 1-stage regulator when the gas cylinder is greater than 10 feet from the instrument. Then install an in-line regulator within 10 feet of the instrument. 3000 psig maximum inlet pressure.
We offer several versions of gas cylinder pressure regulators to serve a wide variety of needs.
High Purity
Check valve in inlet; keeps air from entering during cylinder change-out
Bar stock nickel-plated brass body with small internal volume; purges quickly
Smooth internal cavity; efficient gas flow
Stainless steel diaphragm with captive PTFE seal; appropriate for most applications
Nickel-plated zinc bonnets
2 1/2 in. diameter nickel-plated brass gauges; easy to read
Needle shut-off valve at body outlet; keeps air from entering during changeout of downstream components
1/8 in. stainless steel male Swagelok fitting at valve outlet; ready for use with copper or stainless steel tubing
High Purity Plus
Check valve in inlet; keeps air from entering during cylinder change-out
Bar stock nickel-plated brass body with small internal volume; purges quickly
Smooth internal cavity; efficient gas flow
Stainless steel diaphragm with captive PTFE seal; appropriate for most applications
Nickel-plated zinc bonnets
2 1/2 in. diameter nickel-plated brass gauges; easy to read
Diaphragm shut-off valve at body outlet; keeps air from entering during change-out of downstream components; higher leak integrity than needle valve
1/8 in. stainless steel male Swagelok fitting at valve outlet; ready for use with copper or stainless steel tubing
Ultra High Purity
Check valve in inlet; keeps air from entering during cylinder change-out
Bar stock nickel-plated brass body with small internal volume; purges quickly
Smooth internal cavity; efficient gas flow
Stainless steel diaphragm with metal-to-metal seal; impervious for the most sensitive applications
Machined brass bonnets; used for panel-mount applications
2 1/2 in. diameter nickel-plated brass gauges; easy to read
Diaphragm shut-off valve at body outlet; keeps air from entering during change-out of downstream components; higher leak integrity than needle valve
1/8 in. stainless steel male Swagelok fitting at valve outlet; ready for use with copper or stainless steel tubing
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