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Minimum Order
Localit:
China
Prix de commande minimale:
-
Commande minimale:
-
Packaging Detail:
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Delivery Time:
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Supplying Ability:
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Payment Type:
T/T, L/C, Western Union, Money Gram
China
Personne à contacter le
Wenzhou, Zhejiang
Possible trouble | Cause | Solution |
Leakage through packing |
1.Packing not sufficient
pressed 2. Packing failure |
1.Tighten the nut to press packing
evenly 2.Replace packing |
Leakage from sealing surface |
1. Some contamination adhered to
the sealing surface 2. Damage of the sealing surface |
1.Clean up the
contamination 2.Repair or change |
Leakage from middle flange |
1.The body and the bonnet are not
joint tightly 2.The sealing surface of middle flange spoiled 3.Gasket is broken or useless |
1.Fix bolts and nuts
averagely 2.Repair the sealing surface 3.Change the middle flange gasket |
The hand-wheels cannot turn smoothly or cannot open and close the valve |
1.Packing is pressed too
tight 2.Packing gland is deflected 3.The stem nut has damaged 4.The screw thread of the stem nut is destroyed or broken 5. Stem is not straight |
1.Loosen the nuts
properly 2.Adjust packing gland 3.Repair the thread and clean contamination 4.Change stem nut 5.Adjust the stem |
Trouble of electric actuator and pneumatic actuator | Refer to Electric Valve Actuator Instruction Manual |