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The Structure And Characteristics Of Bellows Gate Valve

The Valve Stem Of the Bellows Gate Valve Adopts the Double Sealing Structure of Bellows and Packing to Ensure the Leak-free Sealing at the Valve Stem. It is used in Power Station, Natural Gas, Vacuum, Freezing System, Hot Oil, Hot Water System, Especially for the Pipelines of Flammable, Explosive, Toxic and Valuable Media.

Bellows Gate Valve Structure: The Bellows of the Bellows Gate Valve and The Valve Cover and The Valve Stem are Welded into One Body, there is NO Seam, so there is No Leakage. The Action of the Valve Stem is Caused by the Compression of the Bellows and the Deformation, Not by Relative Motion. Ordinary Gate Valves are Sealed with Packing, the Stem and Packing will slide between, and it is easy to leak (spool) at low temperatures, and the bellows gate valve does not have this problem.




Bellows Gate Valves Use Stainless Steel Sealed Bellows that can be Stretched and Compressed Instead of Packing Seals, which are generally used for medium transportation with strong permeability, such as valves on hydrogen systems, as long as the bellows are not damaged, there is generally no leakage. The General Gate Valve is Sealed With Packing, which is Prone to Leakage.

Bellows Gate Valve Features:

1: Corrugated gate valve is Double Sealed, Corrugated Pipe (Stainless Steel)+ Packing, better Safety Performance, so it is often used in Toxic Media, Flammable and Explosive Media, High Temperature Steam, Hot Oil and other Systems.

2: The Switching Torque is small, the switching is relatively Easy, there is no Flow Resistance Loss, Long Service life, Beautiful Appearance, etc


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