Leakage reason and solution of pneumatic butterfly valve sealing ring

When the pneumatic valve leak when you start to Lenovo may not be sealed circle problem, in fact, the usual pneumatic valve maintenance work, the cause of the seal leakage for what? And how to solve it? Let's share it with Shanghai and china:

One is the bearing capacity, temperature field over the pneumatic butterfly valve seal ring leakage itself; another is the pipeline media particles, switch opening and closing times more frequently, will cause some damage to the sealing ring, for a long time, easily lead to leakage of sealing ring.

Plainly, the reason why the pneumatic butterfly valve switch is not in place, the sealing ring leakage problem, in the final analysis is not done daily maintenance work butterfly valve. And then I'd like to summarize some of them:

1, in the use of pneumatic butterfly valve, should be in advance to confirm whether the valve is in full open state, and then do a good job cleaning the pipeline, there is no welding slag and other debris, sealing surface scratches;

2, usually to pneumatic butterfly valve set bypass pipeline, if you have to repair or replace the need for pneumatic butterfly valve, then you can use the bypass pipeline to use, the use of the process as usual;

3, as for installation, the butterfly valve can be installed horizontally and horizontally within 180 degrees, and the pneumatic actuator can not be installed directly in the rural direction;

4, if the use of butterfly valve found filler leakage problem, need to tighten the gland bolts.