Stainless steel gate valve shaft packing requirements:
1, valve packing should also withstand frequent opening and closing, the sealing effect of the permanent;
2, in view of the above requirements, valve shaft packing for life or do not change for more than 10 years;
3, If the packing needs to be replaced, the design of the pneumatic valve should consider the measures that can be replaced under the condition of water pressure;
4, due to the network of soft seal gate valve, usually not frequently open and close, requiring filler inactivity within a few years, the filler is not aging, long-term sealing effect.
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