Gas Backflow Preventers

Description: materials and cracking pressures to choose from. Note: Please take precautionary measures when welding to prevent heat build-up and possible damage to the valve seat. Available Materials: 316/316L Stainless Steel (SS) Alloy B (HB) Carbon Steel (CS) Alloy C-276 (HC) Alloy 20 (A2) MONEL® (MO)

• Media: Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
• Valve Size: 0.7500 inch

Description: higher class of valves. Commonly, widely used in the fields of Chemical, Aerospace, Automotive, Mechanical Engineering, Oil & Gas, and so on. DCW PTFE Ball Valve Seats Designed for Your Application: Extreme Toughness Excellent Wear Resistance Excellent

• Media: Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Wastewater, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Specialty / Corrosive Gases

Description: engineering, widely used in various industries, such as Aerospace, Automotive, Electronics, and Chemical analysis, Oil and Gas, Engineering, Medical and so on, because of its excellent performance below, Excellent chemical resistance, like outstanding corrosion protection Wide

• Media: Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Potable Water, Salt Water, Wastewater, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Specialty / Corrosive Gases, Steam

Description: For over 35 years, the compact, fluoropolymer (PTFE/FEP/PFA), Sanitary Insert Valve has been used as the most economical solution to providing a check valve in a new or existing sanitary piping system. This valve style is designed to fit into grooved-end clamp-type fittings. Since the Sanitary

• Media: Air, Chemical, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
• Valve Size: 1 inch

Description: The Tubing Check Valve-Flared is a three piece constructed valve with 37º flared ends which conform to J. I. C. and S. A. E. Hydraulic Standards. These valves are designed for maximum flow with minimal pressure drop. Available Materials: 316 Stainless Steel (SS) Brass (BR) Carbon Steel (CS)

• Media: Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
• Valve Size: 1.25 inch

Description: The Universal High Pressure check valve is a one piece body machined from bar stock with female pipe threads. The valve is designed and manufactured for high pressure applications. For applications below 3000 PSIG, view our UN-3 series. Available Materials: 316 Stainless Steel (SS) Alloy B (HB)

• Media: Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Salt Water, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases, Steam, Other
• Valve Size: 1.25 inch

Description: The check valve permits free flow in one direction and no (checked) flow in the opposite direction. This valve is specified in many applications because of its very low cracking pressure (typically less than 0.5 psig), its excellent repeatability, and leak-tight operation. The unique design of the

• Media: Air, Breathable Air, Compressed Air, Chemical, Hydraulic Fluid, Water, Hot Water, Cold Water, Ground Water, Potable Water, Wastewater, Gas, Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Other
• Valve Size: 0.0500 inch

Description: Designed to prevent surge, backflow, and water hammer in liquid service. These check valves are available in cast iron, bronze or stainless steel, pressure and temperature conditions will dictate the appropriate body material. For air and gas applications, consult factory.

• Connection: Threaded
• Material of Construction: Brass / Bronze, Cast Iron, Stainless Steel
• Media: Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases
• Pressure Rating: 200 to 600 psi

Description: High pressure valve with check valve for inert gases up to 6,000 psi (420 bar) The high pressure valve type TV17GR is designed as a shut-off valve for pressurized gases. The valve prevents backflow of the medium at the outlet port. Therefore no gases can enter the

• Connection: Threaded
• Material of Construction: Brass / Bronze, Stainless Steel
• Media: High Purity Gas
• Pressure Rating: 6000 psi

Description: ). The O-Ring Check Valves reliably prevents backflow where leak-tight shutoff off of liquids or gases is required. The standard construction uses a Buna-N o-ring, the O-Ring Check Valve is also available with the following O-rings: Viton, PTFE and Kalrez. Temperature ranges for

• Pressure Rating: 15000 to 100000 psi
• Valve Type: Check Valves

Description: Valves NOV's Valve Division manufactures top of the line Reset Relief Valves, Shear Relief Valves, Float Valves, and Gate Valves for the oil and gas industry. These product lines protect drilling equipment from pressure spikes and backflow, which can lead to premature

• Controlled Pressure Range: 0.0 to 10000 psi
• Media Description: Gas

Description: Series SD-2 Dual Check Valves for Carbonated Beverage Machines prevent the reverse flow of contaminated water, such as carbon dioxide gas and carbonated water, from entering into the potable water supply due to backpressure backflow. It consists of a stainless steel body

• Valve Size: 0.2500 to 0.3750 inch
• Valve Type: Check Valves

Description: 4" exposed non-freeze anti-siphon automatic draining wall faucet features an exterior chrome finish. Features And Benefits Commercial/residenti al exposed, non-freeze, dual hot and cold wall faucet with external automatic draining backflow preventer Ideal for

• Applications: Commercial

Description: ). Wall mount hardware included. Freeze protected to -30 F. Digital water-resistant bath remote controller included (USC1-117). Additional remote controllers available. Draft backflow preventer included. Unique safety features: Equipped with oxygen depletion system and Film type

• Heater Type: Water Heater

Description: ). Wall mount hardware included. Freeze protected to -30 F. Digital water-resistant bath remote controller included (USC1-117). Additional remote controllers available. Draft backflow preventer included. Unique safety features: Equipped with oxygen depletion system and Film type

Description: Inner core - Prevents element from collapsing in backflow conditions Optional internal pleated prefilter - 3.0 micron media protects the fine borosilicate fibers from large particles, extending the life of the coalescing media Inner media wrap - Allows crossflow of gas

• Bowl Drain: Manual, Automatic
• Bowl Material: Aluminum
• Filter Type: Coalescing
• Maximum Air Volume: 1125 SCFM

Description: Inner core - Prevents element from collapsing in backflow conditions Optional internal pleated prefilter - 3.0 micron media protects the fine borosilicate fibers from large particles, extending the life of the coalescing media Inner media wrap - Allows crossflow of gas

• Bowl Drain: Manual, Automatic
• Bowl Material: Aluminum
• Filter Size Rating: 3 microns
• Filter Type: General Purpose

Description: Inner core - Prevents element from collapsing in backflow conditions Optional internal pleated prefilter - 3.0 micron media protects the fine borosilicate fibers from large particles, extending the life of the coalescing media Inner media wrap - Allows crossflow of gas

• Bowl Drain: Manual, Automatic
• Bowl Material: Aluminum
• Filter Size Rating: 1 microns
• Filter Type: Coalescing

Description: Inner core - Prevents element from collapsing in backflow conditions Optional internal pleated prefilter - 3.0 micron media protects the fine borosilicate fibers from large particles, extending the life of the coalescing media Inner media wrap - Allows crossflow of gas

• Bowl Drain: Manual, Automatic
• Bowl Material: Aluminum
• Filter Size Rating: 0.3000 microns
• Filter Type: Coalescing

Description: hardware included. Freeze protected to -30 F. Digital water-resistant bath remote controller included (USC1-117). Additional remote controllers available. Draft backflow preventer included. Unique safety features: Equipped with oxygen depletion system and Film type overheat sensing.

Description: included. Freeze protected to -30 F. Digital water-resistant bath remote controller included (USC1-117). Additional remote controllers available. Draft backflow preventer included. Unique safety features: Equipped with oxygen depletion system and Film type overheat sensing. Flame

Description: processing, and alcohols. Use for liquids, gases, pressure, and vacuum applications. Operating ranges are 0 to 50 PSI and -40 to 126°C. Autoclavable, zero maintenance, 1-1/4 inch length unit installs in any position. Prevents damage to equipment, pumps, and flow systems by

• Housing Material: Plastic
• Maximum Discharge Flow: 0.0022 GPM
• Media Temperature: 500 F
• Power Source: AC Powered

Description: processing, and alcohols. Use for liquids, gases, pressure, and vacuum applications. Operating ranges are 0 to 50 PSI and -40 to 126°C. Autoclavable, zero maintenance, 1-1/4 inch length unit installs in any position. Prevents damage to equipment, pumps, and flow systems by

• Maximum Discharge Flow: 0.6250 GPM
• Media Temperature: 200 F
• Power Source: AC Powered

Description: Series SD-3 Dual Check Valves with Atmospheric Port & Strainer for Carbonated Beverage Machines prevent the reverse flow of polluted water, such as carbon dioxide gas and carbonated water, from entering into the potable water supply due to backpressure backflow. It consists of

• Valve Size: 0.2500 to 0.3750 inch
• Valve Type: Check Valves

Description: instrument or plant air, as well as in any environment where preventing back-flow is critical. The Series 2633 is manufactured in sizes 1/2" to 3" NPT. The check sleeve is available in a variety of elastomers to match specific service conditions. Contact Red Valve to see how we can

• Media Description: Water

Description: incorporate a swing-type disc that allows flow in one direction while preventing backflow in the opposite direction. The “positive safety” aspect refers to additional safety mechanisms implemented in these valves. For example, some positive safety swing check valves are equipped with a

• Valve Size: 2 to 16 inch

Description: industries such as water treatment, oil and gas, and chemical processing to prevent backflow and ensure the safe and efficient flow of fluids. Technical specifications Design and Manufaciure:DIN3840, BS EN 1868 Face to Face Dimensions:DIN3202, BS EN 558

• Connection: Bolt Flange

Description: APCO Double Door Check Valves by DeZURIK are designed to automatically prevent back-flow in systems where it is desirable to permit flow in one direction and prevent flow in the opposite direction. Double door check valves are recommended for clean liquids and gasses and have an

• Material of Construction: Stainless Steel, Steel, Other
• Valve Size: 2 to 36 inch

Description: used to allow fluid to flow in one direction while preventing backflow, and safeguarding pumps, compressors, and other equipment from potential damage. API check valves are designed specifically for applications in the oil and gas sector and are subjected to rigorous testing and