Proper storage, installation and use of two-way pressure butterfly valves

The two-way pressure butterfly valve can be used in a wide range of applications (municipal engineering, papermaking, petroleum, chemical, oil depots), especially in applications where the pressure requirements of the valve are high. So, what should you pay attention to when using the two-way pressure butterfly valve ?
1. The valve should be blocked at both ends of the valve and stored in a dry, ventilated room. If it is stored for a long time, it should be checked regularly.

2. Clean the valve before installation to eliminate defects caused during transportation.

3. The markings on the valve must be calibrated during installation. In particular, the flow direction of the media must be consistent with the flow direction marked on the valve.

4. For electric disc valves, it should be noted that the connected mains voltage must be the same as in the electric device manual.

Possible failures, causes and elimination methods of the two-way pressure butterfly valve:

1. Leakage at the packing

The nut of the packing platen is not tightened or the screwing is uneven, and the nut can be properly tightened. If you find that you continue to leak, you may fill

The amount of material is insufficient, and the packing can be refilled and then tightened.

2. Leakage of valve body and disc seal

1) There is dirt between the sealing surfaces, which can be cleaned.

2) Damage to the sealing surface, re-grinding or re-grinding and grinding the valve body after welding.

3) The eccentric position is not suitable, and the eccentric position is adjusted to the appropriate position during installation.




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