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The valve stem of the bellows gate valve adopts a double sealing structure of bellows and packing to ensure a leak-free seal at the valve stem. It is used in power stations, natural gas ammonia vacuum, refrigeration systems, hot oil, and hot water systems. It is especially suitable for inflammable and explosive, Piping for toxic and precious media.

Bellows gate valve structure:

the bellows of the bellows gate http://www.didlink-valve.com/, the bonnet and the valve stem are welded into one body, there is no seam, so it does not leak. The action of the valve stem is caused by the deformation of the compressed bellows, not by relative movement. Ordinary gate valves are sealed with a blank material, and the valve stem and packing will slide, and it is easy to leak (spool) at low temperatures. Bellows gate valves do not have this problem. The bellows gate valve uses a stainless steel closed bellows that can be stretched and compressed to replace the packing seal, which is generally used for the transmission of more permeable media, such as valves on hydrogen systems. As long as the bellows is not damaged, there is generally no leakage; and Generally, the gate didlink valve is sealed with the material, which is prone to leakage.

Features of bellows gate valve:

1: The bellows gate valve is double-sealed, bellows (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, the service life is long, and the appearance is beautiful.