Gate Valves – RFS Hydraulics
公開日:2022/06/25 / 最終更新日:2022/06/25
A gate valve is the most commonly used for course of plant utility as it’s a linear motion valve used to regulate the fluid stream. The valve could be both in absolutely opened or totally close place. The gate valve disc is completely removed from the move when the gate valve is at fully opened position. A typical gate valve has no blocking within the move path. Thus, leading to a really low stress loss and a free bore is created. When the valve is totally closed, a 360° surface contact is required between the disc and seats with the intention to perform correct sealing.
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In actual fire circumstances, line stress is immediately decreased and the complete area is hosed down. The resulting strain drop and rapid cool down causes many valves to fail. The Hearth Protected design does not rely on line media stress to seal, therefore the butterfly valve flange type presents superior low stress efficiency to aggressive designs. The Inconel® steel seat features as a spring mechanism, which permits for expansion and contraction with out breaking contact with the disc. Moreover, the Inconel seat provides higher corrosion and heat resistance and larger power than the stainless steel seats commonly used.
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