Gas Cylinder Pressure Regulators

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