Pneumatic butterfly valve fault elimination process

pneumatic butterfly valve in the event of a problem, how should we go to screening, at the same time, in the shortest possible time to find the root cause of the problem and solve the problem? The following will bring you to solve!
before, installation, check to ensure that the SENMI product performance and whether the medium flow arrow is consistent with the movement conditions, and insert pneumatic valve inner cavity clean, do not allow foreign impurities in sealing ring and disc attached, before cleaning must not allow closing butterfly plate, so as not to damage the sealing ring.
mating flanges, pneumatic butterfly valve installation recommended dish special pneumatic valve flange, HGJ - namely Type socket welding steel flange.
, pneumatic butterfly valve installed in the pipeline position, the best position for the vertical loading, but can't flip.
, pneumatic butterfly valve in use need to adjust the flow, have controlled pneumatic actuators.
, on and off a lot of pneumatic valve, manual adjustment in 2 months time, open the worm gear case cover, check whether the butter is normal, should keep the right amount of butter.
compression, check the connection parts requirements, namely the packing sealing, guaranteeing flexible pneumatic valve rod rotation.
pneumatic butterfly valve, metal seal is not suitable for installation in the end of the pipe, such as must be installed in the end of line, take equipped with export hair, prevent the backlog of sealing ring, too.
, pneumatic valve rod installation using regular check pneumatic valve using effect, find fault in a timely manner to eliminate.
pneumatic butterfly valve sealing surface leakage failure of exclusion:
, butterfly plate, seal face with sundry
, butterfly plate, seal face closed position match not
configuration, export side loading flange bolt uneven
pneumatic butterfly valve two transverse leakage failure of elimination:
,
, tube flange sealing gasket failure on both sides uneven tension or compression
, sealing ring, sealing gasket failure.