hard sealing butterfly valve with soft sealing butterfly valve is as follows: the structure of the difference between a. Sealing material: hard and soft sealing seat sealing material. Hard seal seat materials precision machining, and the valve core ( The ball) Cooperate with accuracy, generally including stainless steel and copper. Soft seal is embedded in the seat is nonmetal sealing material. Due to the soft sealing material has certain elasticity, hard seal to relatively low machining accuracy requirements. 2. Structure: soft sealing butterfly valve for more eccentric eccentric single, double and triple eccentric hard seal butterfly valve. 3. Adopting soft sealing temperature tolerance: normal temperature environment. Hard seal can be used in low temperature, normal temperature and high temperature environment four. Pressure: soft seal low atmospheric pressure, hard seal may also can be used for high pressure conditions. Sealing performance: soft sealing and three partial hardness sealing butterfly valve has good sealing performance, can triple eccentric butterfly valve in high pressure and high temperature environment to maintain good sealing performance. In view of the above characteristics, soft seal butterfly valve is suitable for the ventilation and dust removal pipeline, water treatment, light industry, petroleum, chemical industry such as two-way opening and closing and adjust. Hard seal butterfly valve is mainly used for heat supply, gas supply, gas, oil, acid and alkali environment. With the widely application of the butterfly valve, its installation, convenient maintenance, simple structure and so on more and more obvious. Electric soft sealing butterfly valve, pneumatic sealing butterfly valve and hard seal butterfly valve is increasingly replacing the electric gate and globe valves.

The increasing consumption demand in key segments such as resilient seal gate valve, os&y valve and os gate valve have been driving the sales of and its derivatives worldwide.
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