High temperature butt welded butterfly valve
High temperature butt welded butterfly valve is a valve designed specifically for high-temperature working conditions. Its core feature is the use of butt welded connection and high-temperature resistant material structure, which is suitable for high-temperature pipeline systems in metallurgy, chemical, power and other industries. Here are its key features and product information:
Welding connection
Adopting a fully welded structure, the valve body is directly welded to the pipeline to avoid the risk of leakage that may occur in flange connections, making it suitable for high-pressure and high-temperature environments.
High temperature resistant design
The sealing surface is often welded with cobalt based hard alloy or Stellite alloy, with a temperature resistance of over 600 ℃.
The valve body material can be selected from WCB carbon steel (≤ 425 ℃), chromium molybdenum steel (≤ 600 ℃), or lining refractory material (instantaneous temperature resistance of 1350 ℃).
compensation mechanism ensures zero leakage in both forward and reverse flow states.
High voltage adaptability
The nominal pressure covers PN0.6-42MPa and supports ANSI 150Lb-2500Lb standards.
Long lifespan and low maintenance
The hard sealing surface has strong wear resistance, and the switch life can reach more than 500000 times; The sealing ring inlay design is easy to replace.
ZDLW high-temperature butt welded butterfly valve has a simple structure, small volume, and light weight, consisting of only a few parts. And it can be quickly opened and closed by simply rotating 90 °, with simple operation, and the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by this valve is very small, which has good flow control characteristics. Butterfly valves have two sealing types: elastic sealing and metal sealing. Elastic sealing valve, the sealing ring can be embedded on the valve body or attached around the butterfly plate.
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