Gas Pressure Regulators
Excelling under pressure
Most specialty gases are supplied in cylinders compressed to high pressures. Pressure regulators reduce the pressure within the cylinders to a level that can be safely used in your operating system. Proper regulator selection is critical for both the safety and effectiveness of your operating systems.
Take a look at our data sheet for more information about how to select and order regulators. View the summary and reference guide to see which regulator Series is recommended for each gas and which model best suits your needs.
Carbon Dioxide Regulators
Critical Purity - 4000 Series Regulators
Dewar Regulators
High Flow Regulators
High Pressure Regulators
The nickel-plated brass 4092 and 316 stainless steel 4093 Series regulators are intended for primary pressure control of non-corrosive gases at a maximum inlet pressure of 6000 psig.
The 145 Series special purpose piston regulator is designed for applications requiring inlet pressures up to 6,000 psi. The piston design requires little or no maintenance.
High Purity - 3000 Series Regulators
High Purity Economical - 2000 Series Regulators
Lecture Bottle Regulators
Low Flow Regulators
Purge Assemblies - 5002 Series
The 5002 Series purges are designed for use with high purity gases to insure system integrity upon breakdown of components or during gas source changes. Most commonly, these purge assemblies are used with pressure control devices as an integral option or can be used within gas delivery systems to isolate pressure or flow control equipment.
The 5002 Series purges are offered in brass and stainless steel with diaphragm packless valves. Optional testing can be provided to certify that these purge assemblies are helium leak-tight for the most demanding services. These devices are intended for use with chemicals that are compatible with the listed materials.
Semiconductor (Corrosive) Regulators
Special Application Regulators
The brass 4094 and stainless steel 4095 Series regulators are intended for primary pressure control of non-corrosive gases at a maximum inlet pressure of 6000 psig, while the 4096 Series regulators are used at a maximum of 3000 psig.
The brass 4097 and 316 stainless steel 4098 Series regulators are primarily installed on cryogenic vaporizing systems.
The 4008 Series regulators are intended for primary pressure control of mildly corrosive high purity gases such as ammonia, hydrogen sulfide, and sulfur dioxide, or for applications requiring the compatibility of an aluminum body regulator.
The 4448 Series regulators are specifically designed for heat and vaporized media before and after pressure reduction, and are classified to meet Class 1, Groups B, C and D code requirements.
The 301 and 302 Piston-Sensed High Purity Low Flow Series Regulators can be used in applications where precise pressure control is required for low flows. These regulators can also be used for transportable cylinders.
Special Purpose Regulators for Transportable Cylinders
The 400 Series regulators are for use with transportable 17 and 34-liter non-refillable cylinders using a CGA 600 valve. These single stage, piston style regulators are designed for non-corrosive service.
The 500 Series regulators are for use with transportable D(34A), D(58), D(76) and D(103) (34, 58, 76 and 103 liter) non-refillable cylinders. These single-stage piston-style regulators are designed for non-corrosive gas service and have proven to be satisfactory for use with low-level corrosive gases (< 100 ppm).
The 6000 Series regulators are for use with transportable D(58), D(103) and D(221) (58, 103 and 221 liter) non-refillable cylinders and can be configured for use with high pressure refillable cylinders. These aluminum single-stage piston-style regulators are recommended for applications requiring a fixed rate.
The 8000 Series pressure demand regulators are for use with transportable D(58) and D(103) (58 and 103 liter) non-refillable cylinders and can be configured for use with refillable cylinders. This regulator is designed to automatically provide the correct flow of gas to instruments that have internal pumps for introducing calibration gas into the instrument.
General Purpose Regulators
