What is the reason for the high temperature of the pneumatic double speed check butterfly valve? 3、 Assembled from scratch
1. Clean and check the removed parts, and replace the valve seat, bonnet gasket and other sealing elements.
2. Assemble in the reverse order of disassembly.
3. Insert and lock the flange connecting bolts with regular torque.
4. Lock the valve stem nut with regular torque.
5. After the actuator of the pneumatic butterfly valve is installed, the corresponding signal is input to drive the valve core to rotate through the rotating valve rod, so that the valve can reach the opening and closing positions.
6. If possible, please conduct pressure seal test and function test on the valve according to relevant specifications before reinstalling the pipeline.
、 What are the performance classifications of fluorine lined butterfly valves
1. Classification by structure: (1) central sealing butterfly valve (2) single eccentric sealing coal valve (3) double eccentric sealing butterfly valve (4) triple eccentric sealing stamp valve
2. Classified by sealing surface material: (1) Soft sealing butterfly valve. (1) The sealing pair is composed of non-metallic soft materials and non-metallic soft materials. (2) The sealing pair is composed of metal hard materials and non-metallic soft materials. (3) Metal hard seal butterfly valve. The sealing pair is composed of hard metal material to hard metal material
Previous: How many lines control the commissioning method of pneumatic high-temperature lining butterfly valve?
Next: How to debug the m-type electric actuator of pneumatic internal butterfly valve?
