Non-return check valves are a means of preventing a reverse flow and are to be installed gas line where air is mixed with fuel gas prior to combustion, 

Non-Return Valves for Gas Supply Applications from AVK International A/S Swing Check Valves. Flanged Non Return Valve to EN12266. Cast Iron or Ductile Iron with or without Stainless Steel internals. Sizes range from DN150 to DN300. Media: Gas; LP Gas;

In-line NRVs: This type of non-return valve uses a spring and the flow is allowed when the upstream pressure exceeds the spring tension. Again when the pressure goes below the pressure to overcome spring tension the flow is blocked. Folding Disc NRVs: Mainly used for gaseous or low-pressure liquid service, this type of non-return valves are made in a wafer body pattern.

Spring Check Non-Return Valves. Spring Check Non-Return Valves are simple, low cost but systems for air, gas or low pressure applications where bubble.

Gas non-return valves (flashback resistant) for town gas, grid gas, natural and liquid gas, Methane (cleaned Biogas) Gas non-return Valves (flashback resistant) Safety Devices in accordance with EN ISO 5175-2 Type: GRS 25, GRS 32, GRS 50. Highlights. Gas non-return valve for very low cracking pressures of 4 - 6 mbar

Non-return valves are safety devices to prevent backfeeding of gases. WITT non-return valves protect plants, pipelines and outlet Non-return valvepoints against reverse gasflow. They can also be used in accordance with EN 764 section 2 in applications where the maximum temperature does not exceed 70° C (158° F).

Description: Swing Check Valves. Flanged Non Return Valve to EN12266. Cast Iron or Ductile Iron with or without Stainless Steel internals. Sizes range from DN150 to DN300. Connection: Bolt Flange. Material of Construction: Cast Iron, Ductile Iron. Media: LP - Gas, Natural Gas. Valve Size: 6 to 20 inch. Supplier Catalog.

RF Flashback Arrestors are used to protect gas cylinders and pipeline outlet points (hoses and any equipment) against dangerous reverse gas flow and flashbacks. for pipeline outlets and single cylinders: Models RF53N, RF53DN and RF53NSK. for torches or burners with high flow: Model RF53NU. for cutting machines with high flow: Model RF53U.

When you want to prevent backflow in any system, a reliable backflow or check valve won't let you down. BES has a top range available in a 

Europa Valve has recently completed an order of 6x 30” Class 600 Non-Slam Check Valves for a customer in the Middle East. Installation Location: Middle East. Description: 30” 600 RF Non-Slam Check Valve. Service: Natural Gas transmission. These valves have a duplex trim. The complete manufacturing of these valves, including a specialised

Getting started; Gas Non Return Valve; Gas Non Return Valve - Manufacturers, Factory, Suppliers from China We not only will try our greatest to present fantastic expert services to each purchaser, but also are ready to receive any suggestion offered by our prospects for Gas Non Return Valve, Double Check Valve Tap, Diesel Check Valve, Minimum Pressure Check Valve,Swing Type Check Valve.