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Soft Seal Of Gate Valve You Know What?

Sep 26, 2017

      Valve body material, should be cast iron, cast steel, stainless steel, 316L mainly, and indicate the grade and cast iron actual physical and chemical testing data, in view of the above requirements, valve shaft filler to strive for a lifetime or more than 10 years does not change; Valve filler should also withstand frequent opening and closing, sealing effect of the permanent; Because of the soft sealed gate valve Usually the opening and closing is not frequent, requiring the packing in a few years of inactivity, fillers are not aging, long-term maintenance of sealing effect.Gate Valve

      VALVE shaft PACKING: Soft seal gate valve, valve plate lining material physical chemistry and hygienic examination data; common wedge-type gate valve, copper ring material, fixed mode, grinding method should be explained; soft sealed gate valve categories, sealing methods and material requirements vary. Gate Valve

       STEM bushing material, its hardness and strength should not be greater than the stem, and in the case of water immersion with the stem, the valve body does not form electrochemical corrosion. What is the material requirement of the soft seal gate valve? World Pump Valve Network for you to introduce soft sealed gate valve of the main parts of the material requirements.Gate Valve

     Stem material, and strive to stainless steel stem (2CR13), large-caliber valves should also be stainless steel embedded in the valve stem, soft seal valve internal leakage problem seriously threatens the normal operation of the device, and the operation of the valve is difficult to find whether there is an internal leakage, The results show that various kinds of valves used by petrochemical enterprises have internal leakage problems in different degrees. Gate Valve

     The reason is the valve plate, valve seat of the sealing surface material does not meet the use requirements, processing precision is not enough, valve plate, valve seat wedge angle does not match, sealing surface width is different, poor coincidence, the brake board is not in place, the wait factor.Gate Valve

     STEM bushing material, its hardness and strength should not be greater than the stem, and in the water immersion condition and valve stem, valve body does not form electrochemical corrosion. STEM bushing material, its hardness and strength should not be greater than the stem, and in the water immersion condition and valve stem, valve body does not form electrochemical corrosion.Gate Valve