cut-off valve of pneumatic butterfly valve pneumatic butterfly valve is commonly used. It through the butterfly plate rolling shutoff valve, widely used in large and medium-sized pipeline. Ordinary pneumatic valve including stainless steel pneumatic butterfly valve, hard seal butterfly valve, soft seal butterfly valve, carbon steel, etc. Every butterfly has its own characteristics. Do you know about the characteristics of pneumatic butterfly valve? 1. Stainless steel pneumatic butterfly valve seal can be replaced, sealing in both directions are strong. 2. Pneumatic butterfly valve flange is exquisite, simple, disassembly, assembly, maintenance is simple and can be installed in any position. 3. Pneumatic butterfly valve structure simple, compact structure, small work torque, 90 ° flexible rotation. 4. Soft seal pneumatic butterfly valve is used to connect between the butterfly plate and the valve stem structure without pin, eliminates the possible internal leak. 5. Hard seal pneumatic butterfly valve cylindrical spherical shape, improves the sealing performance and prolong the service life of the valve, the pressure remained more than 50000 times when opening and closing of zero leakage. 6. Flow curve tending to straight line of pneumatic butterfly valve, adjust good performance. 7. Pneumatic butterfly valve butterfly valve disc can spray according to the requirements of customers, such as nylon or teflon. 8. Hard seal butterfly valve can be planning for flange and clamp connection.

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