Pneumatic valve common fault, causes and elimination methods 4)

the cause of the problem of pneumatic valve packing pneumatic valve leakage. Packing gland did not press. The use of packaging or save a long time, error and failure troubleshooting. Even tighten nut, compressed package. Change the packing * pneumatic valve sealing surface leakage of the cause of the problem. Sealing surface is connected to the pieces of sewage. Sealing surface damage the troubleshooting. Clear clutter contamination. Reprocessing of repair or replacement * body junction leakage and the cause of the problem of pneumatic pneumatic valve bonnet. Uneven to tighten bolts. Flange sealing surface damage. Gasket fracture or fault troubleshooting. To tighten evenly. Rebuild. Replace the new gasket * hand wheel rotation is not flexible or pneumatic valve pneumatic valve opening and closing of the cause of the problem. The packaging is too tight. Packing plate, baroclinic set of device. Damage of pneumatic stem nut. Pneumatic valve stem nut badly worn or broken. Pneumatic valve rod bending troubleshooting. Loosen nut on the appropriate packaging board. Correct filling plate. Remove the cleaning sewage fragments repair line. Replace the air valve stem nut. Correct dry
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