Restek Datasheets for Gas Valves

Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow.
Gas Valves: Learn more

Product Name Notes
Replacement Parker®Diaphragm Valves for Air Monitoring Canisters* High quality, metal-to-metal seal, 2/3-turn valve with stainless steel diaphragms. 2-port or 3-port valve available.
Mini-Regulator for natural gas and refinery gas standards 0–300 psig inlet pressure range. 0–15 psig outlet pressure range. Supplied with 0–15 psig outlet pressure gauge, brass CGA 170 nut and nipple.
Gas Regulators -- Model 22690/22691 for use with 14-liter and 48-liter Scott/Air Liquide Transportable Gases Use the CGA 160 inlet connection with 14-liter Scott/Air Liquide Transportable Gases. Use the CGA 165 inlet connection with 48-liter...
Ball Valve
Plug Valve
Toggle Valve
Parker Balston® Shut-Off Gas Valve
Ball Valve
Plug Valve
Toggle Valve
Swagelok® Shut-Off Gas Valve
Backpressure Regulators Backpressure regulators can improve detector performance by preventing bubble formation in the detector flow cell. They also are useful in post-column reaction lines and between detectors and fraction collectors in...
Gas Sampling Valves & Replacement Rotors Ideal for samples containing low concentrations of sulfur or other active compounds.
Metering Gas Valves Material: Nickel-Plated Brass Size: 1/8″
Valves for HPLC Our valves have low internal volumes and are rated to 15,000 psi (103,421 kPa). They feature a 2-piece stem assembly in which the rotating upper shank is coupled through a...
Ball Valve, 2-Way, Straight
Plug Valve, 2-Way, Straight
Parker’s (A-Lok) fittings are ideal for installing new equipment, modifying existing instrumentation, or replacing worn connections. Fittings are available in brass and stainless steel. Siltek®/Sulfinert® treated or...
Metering Gas Valves Product Name: Metering Valve, straight Material: Brass Size: 1/8″
Replacement Swagelok®SS4H Bellows Valve All metal flow path prevents sample adsorption, giving more accurate results. Unique serial number on each valve for complete traceability. Withstands temperatures of up to 300 °C. Rugged performance in...
Silcosteel®Regulators -- Dual Stage & Single Stage CEM Continuous Emission Monitoring Environmental Stack and Gas Emission Standards Low level sulfur and mercury analysis Reactive or corrosive gases Off-shore platform systems Corrosive and salt water exposure Outlet pressure:0...
Dual-Stage Ultra-High Purity -- Stainless Steel Gas Regulators Most stable outlet pressure control. Secondary pressure regulation not needed.
Sample Cylinder Valves -- Stainless Steel & Sulfinert®Treated Multiple valve configurations, including dip tube and rupture disks. Large, durable, Kel-F® seat ensures leak-free operation. Temperature range: -40 °C to 120 °C Alta-Robbins' unique valve design incorporates a...
Dual-Stage Ultra-High Purity Chrome-Plated -- Brass Gas Regulators Oxidation-resistant, chrome-plated. Most stable outlet pressure control. Secondary pressure regulation not needed. Most widely used regulator. Less internal volume than stainless steel gas regulators.
Single-Stage Ultra-High Purity -- Chrome-Plated Brass Gas Regulators Oxidation-resistant, chrome-plated. Use when there is secondary pressure regulation downstream. Identical gas purity protection as with dual-stage gas regulators.
Ultra-High Purity Chrome-Plated Brass -- Line Gas Regulator Oxidation-resistant, chrome-plated. Use where you need to reduce the line pressure by 20 psig (138 kPa) or more. Same purity protection as high-pressure cylinder regulators.
Metering Control Valves -- Stainless Steel & Sulfinert®Treated Reduces pressure between sample cylinder and GC injector. Maintains fine metering control. Contains Kel-F® seat
Spectra Gas 7621 High-Purity VOC Regulator Single-stage, stainless steel. Two pressure gauges and CGA-180 fitting. 3,000 psig maximum inlet pressure. Stainless steel diaphragm and Kel-F® seat. 1/8-inch tube compression outlet. Low internal volume: 3.03 cc.
Single-Stage Ultra-High Purity -- Stainless Steel Gas Regulators Use when there is secondary pressure regulation downstream. Identical gas purity protection as with dual-stage gas regulators.