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Structure and characteristics of bellows gate valve
Source: | Author:hkw239488 | Publish time: 329 days ago | 320 Views | Share:

The valve stem of bellows gate valve adopts bellows and packing double sealing structure to ensure the non-leakage sealing of the valve stem, which is used in power station, natural gas, ammonia, vacuum, freezing system, hot oil, hot water system, especially for the pipeline of inflammable, explosive, toxic and precious medium.

Bellows gate valve structure:

Bellows gate valve bellows and cover and stem are welded into one, no seams, no leaks, stem action by compression bellows and deformation, not by relative movement. Standard gate valves are packed, slide between stem and packing, and leak easily at low temperatures. Bellows gate valves do not have this problem.

Bellows gate valve structure drawingBellows gate valve structure drawing

Bellows gate valve can be stretched and compressed stainless steel sealed bellows to replace the packing seal, generally used for permeability of the medium transmission, such as hydrogen system on the valve, as long as the bellows do not damage generally no leakage; And the general gate valve with packing to seal, easy to leak.

Bellows gate valve features:

1: corrugated gate valve is double seal, corrugated tube (stainless steel) + packing, safety performance is better, so often used in toxic media, flammable and explosive media, high temperature steam, hot oil and other systems.

2: small switch torque, easy switch, no flow resistance loss, long service life, beautiful appearance, etc.