Stainless steel gate valve shaft packing requirements
Stainless steel gate valve shaft packing requirements: 1, the valve packing should also withstand frequent opening and closing, the sealing effect of permanent; 2, in view of the above requirements, valve shaft packing for life or do not change for more than ten years; 3, if the filler Need to be replaced, pneumatic valve design should be considered under the conditions of pressure to replace the measures; 4, due to the network of soft seal gate valve, usually not frequent opening and closing, requiring filler inactivity within a few years, the filler is not aging Long-term maintenance of sealing effect.
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