Air Backflow Preventers

Description: Reduced pressure backflow preventer 112-975XL is reliable top performer with low life-cycle costs which come with bronze body wye pattern design. This backflow prevention device comes with Noryl replaceable seats and silicone rubber check discs and is available in multiple

• Media: Water

Description: Air Gap Fitting Zurn Wilkins AG for Reduced Pressure Backflow Preventers reduces downtime of attaching a drain line to a Reduced Pressure Principle Assembly. It is designed for use with 3/4" to 1" model 975XL Reduced Pressure Principle Backflow Preventers on

• Media: Water

Description: Description / Abstract There is no abstract information for this document.

Description: Series LFN9-CD is designed to prevent high hazard backsiphonage backflow and low-head backpressure (10ft. or less) from contaminating the potable water supply. The LFN9-CD is ideally suited to prevent backflow associated with hose connections and may be screwed directly

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: 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: DUAL CHECK VALVE ASSEMBLY, BACKFLOW PREVENTER, 1/2" MODEL 760. FREE 2 YEAR RADWELL WARRANTY

• Media: Air

Description: REGULATOR, AIR, 3/8 INCH RC, BACKFLOW FUNCTION, GAUGE, 125PSI. FREE 2 YEAR RADWELL WARRANTY

• Media: Air

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: FILTER REGULATOR, HIGH PRESSURE, BACKFLOW FUNCTION, 3/8 PORT SIZE. FREE 2 YEAR RADWELL WARRANTY

• Media: Air

Description: SERIES AR, REGULATOR, WITH BACKFLOW FUNCTION, MODULAR TYPE, 0-125 PSI. FREE 2 YEAR RADWELL WARRANTY

• Media: Air

Description: Devices to prevent pollution by backflow of potable water - Unrestricted air gap-Family A - Type A

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.

• Actuation: Mechanical Device
• Connection: Threaded
• Media Temperature: Up to 150 F
• Pressure Rating: 200 to 600 psi

Description: Devices to prevent pollution by backflow of potable water - Unrestricted air gap-Family A - Type A

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 inlet port

• Actuation: Manual / Hand, Pneumatic
• Connection: Threaded
• Media Temperature: -22 to 140 F
• 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 the

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

Description: Qosina offers a variety of valves and tuohy borst adapters that are in stock and ready for immediate delivery. Made with a clear PVC male luer lock body, blue flat ABS/nylon cap and silicone gasket, Qosina part #80407 is designed to prevent the backflow of fluids and can accommodate 5

Description: The Zurn Wilkins 975XL2 Reduced Pressure Principle Backflow Preventer provides high hazard protection for potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing. To view all options, see the Specification

• Back Flow Preventer Assembly: Yes
• Media Description: Water
• Valve Size: 2 inch

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: filtration. System tubing connection is a detachable stepped hose barb that accepts 1/4" to 3/8" inner diameter flexible tubing. Integral check valve will also prevent backflow of water into the vacuum line.

• Type Of Pump: Other

Description: Series HPX Boiler Trim-Out Packages are for use on commercial and residential closed loop hydronic heating systems. Packages include an air separator, a 1/8 in. and 1/2 in. service check valve, bronze combination fill valve and backflow preventer, 1/8 in. float vent and ETX

Description: Series ASCV Anti-Siphon/Chemigat ion Check Valves are used to prevent backflow of mixtures of water and chemicals into the water supply. The spring swing silent check valve is extremely efficient. Series ASCV also features a built in vacuum breaker to provide air release and

• Media: Water, Hot Water, Cold Water, Potable Water
• Pressure Rating: 150 psi
• Primary Material of Construction: Steel
• Valve Size: 3 to 12 inch

Description: Series ASCV Anti-Siphon/Chemigat ion Check Valves are used to prevent backflow of mixtures of water and chemicals into the water supply. The spring swing silent check valve is extremely efficient. Series ASCV also features a built in vacuum breaker to provide air release and

• Valve Size: 3 to 12 inch

Description: as fire sprinkler inspections, valve status tests, internal piping assessments, fire pump operating tests, fire pump flow tests, forward-flow tests for back-flow preventers, risk assessment and performance-based testing programs, preparing preplanned impairment reports, hydrant

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

• Media Description: Water

Description: included check valve should be installed in the return line downstream from the Return manifold to prevent backflow to the mold. Tubing may be connected to the manual vent-drain port so any residual water after the purge cycle can be drained into a suitable container or floor drain. An

• Actuation: Manual / Hand
• Media: Water, Cold Water
• Media Temperature: 250 F
• Number of Ports/Ways: 3

Description: also be ordered for double meter sets or tandem sets for meter and regulator or meter and backflow preventer. The body of the meter box is made from rigid PVC which has a high insulating "R" value to resist "frost bridging" inside the box. For extremely cold climates, an optional

Description: valve should be installed in the return line downstream from the Return manifold to prevent backflow to the mold. Check valves may be purchased separately. Tubing may be connected to the manual vent-drain port so any residual water after the purge cycle can be drained into a suitable

Description: scientifically designed to move large volumes of air at high pressures. The large hub prevents backflow of air, which is an important feature in the design of this wheel. A low pitch and a higher hub-to-diameter ratio make the VB impeller more effective than VA models in

• Design Configuration: Axial, Other
• Drive Options: Direct Drive, Belt Drive
• Features: Dampers / Louvers
• Material: Aluminum, Steel, Stainless Steel

Description: design. Ball detents, with approximately 15 pounds breakaway force, retain the valve selector handle in the selected position (WATER, PURGE or VENT). An included check valve should be installed in the return line downstream from the Return manifold to prevent backflow to the mould.

• Material of Construction: Aluminum
• Media Description: Water, Cold Water
• Pressure Rating: 150 psi
• Valve Size: 1 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