Flange Check Valve
The flanged check valve is the valve connected to the pipeline through flanges. It is convenient in installation and maintenance, good sealing performance, etc. Therefore, it has been widely used in industrial fields such as petroleum, chemical industry, and food industry.
Main features of the flange check valve.
- The renewable seal welded seat is standard with stellite 6 while optional screwed in seat;
- Flexible graphite gasket for Class 150 valves, spiral wound gasket for Class 300 & 600 valves, and ring joint for Class 900 & above valves or as an option for the Class 600 valves on customer request;
- Can be placed at the bottom of the center line of the valve body according to the requirements of the user, to ensure that the valve body is blocked by small impurities, there is a maintenance point to remove these small impurities;
- Is Simple and Compact structure, small volume, low weight. It is easy to realized quickly open/close, reliable sealing, excellent performance.
Main Part Material
| No | Part | Material |
| 1 | Body | ASTM A216 WCB |
| 2 | Seat | ASTM A105 +13Cr |
| 3 | Disc | ASTM A216 WCB+ 13Cr |
| 4 | Arm | ASTM A216 WCB |
| 5 | Nut | ASTM A194 2H |
| 6 | Pin | ASTM A182 F6a |
| 7 | Connector | ASTM A216 WCB |
| 8 | Gasket | Graphite + SS304 |
| 9 | Bonnet | ASTM A216 WCB |
| 10 | Bolt | ASTM A193 B7 |
The data is for reference only, please consult sales@wayvalve.com for details.
The flanged check valve is widely used in multiple fields, mainly including:
- Coal Chemical Industry: the flanged check valve can adapt to complex working conditions. It is resistant to high pressure, corrosion, and high temperature and can operate stably in a high-pressure environment, effectively preventing the backflow and ensuring production safety.
- Petrochemical Industry: the flanged check valve is widely applied to pipeline systems transporting media such as crude oil, refined oil products, and natural gas. It can effectively prevent the backflow and avoid safety accidents.
- Water Treatment: the flanged check valve can be used at the outlet of the water pump to prevent the backflow when the water pump stops running, thus protecting the safe operation of the water pump and other equipment.
- Electric Power: In the cooling water system and steam system of the power industry, the flanged check valve ensures the unidirectional flow of the medium, improving the operation efficiency of the system.
- Hydropower Generation: the flanged check valve is used to prevent the turbine from rotating in reverse, protecting the safe operation of the generator set.
- Gas Transmission: In the gas transmission pipeline, the flanged check valve ensures the unidirectional flow of gas, prevents the backflow of gas, and guarantees the safety of gas transmission.
What is a flange valve?
A flange valve is a type of valve that is connected to the pipeline through flanges. It has flanges on both ends of the valve body, which are usually bolted to the corresponding flanges on the pipeline. This connection method provides a reliable and stable seal, allowing the valve to be easily installed, maintained, and replaced. Flange valves are available in various types, such as gate valves, globe valves, and check valves. They are widely used in different industrial and civil applications to control the flow, pressure, and direction of fluids in the pipeline system, suitable for high – pressure and high – temperature working conditions.
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