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About UsQingdao Power Station Valve Co., Ltd. (formerly known as Qingdao Power Station Valve Factory) was established in September 1965 and is located in the coastal city of Qingdao. It is a professional manufacturing factory designated by the former Ministry of Mechanical and Electrical Affairs as a high-temperature and high-pressure valve product for power station boilers.
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ProductsThe product range covers gate valves, globe valves, check valves, safety valves, control valves, blocking valves, throttle valves, butterfly valves, high and low pressure bypass valves, high pressure three-way valves, temperature and pressure reduction devices, etc. for power plant boilers and steam turbine pipelines with subcritical and ultra (ultra) critical parameters.
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BlogThe company is an expert unit of the National Boiler and Pressure Vessel Standards Committee, leading or participating in the development of more than ten valve manufacturing and inspection standards, and possessing over twenty product technology patents.
Check valve
Check valves are installed on steam and water pipelines, serving as safety devices to automatically prevent media backflow. There are also some check valves with special functional requirements, such as pneumatic extraction check valves, air discharge check valves, etc.
Product Details
Check valves are installed in steam and water pipelines as automatic safety devices to prevent backflow of the medium. Some check valves also have special functional requirements, such as pneumatic steam extraction check valves and air vent check valves.
| Pressure Level | PN1.6～76MPa 150Lb～4500Lb |
| Nominal Diameter | DN50～1000 |
| Material | ZG230-450 ZG20CrMo ZG20CrMoV ZG15Cr1Mo1V WCB/A105 WB36 WC6/WC9/F22 F91 F92 |
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Contact Us
Hotline: +86-0532-86083651
Email: 13853228327@163.com
Website: www.qingdianfa.com
Address: No. 29 Ruijin Road, Licang District, Qingdao City, Shandong Province, China
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