How to Handle Valve Fault Issues as Instructed by the Manufacturer

Valve packing leakage.

Reason Analysis:

The filling cap was not tightly sealed.

2. The filler has become ineffective due to prolonged use or improper storage.

Solution:

Tighten the nuts evenly to compress the packing material.

2. Replace the packing material.

Seal face leakage.

Reason Analysis:

Foreign material is adhered to the sealing surface.

Seal face damage.

Solution:

1. Clean up the trash thoroughly.

2. Refurbish, recondition, or replace.

Thirdly, there is leakage at the connection between the valve body and the valve cover.

Reason Analysis:

Uneven bolt tension.

2. Damaged flange sealing surface.

3. Gasket破裂或失效.

Solution:

Tighten evenly.

2. Refine anew.

3. Replace new gaskets.

Four: The handwheel is not turning smoothly or the valve disc cannot open and close properly.

Reason Analysis:

The packing is too tight.

2. The packing plate and the pressure sleeve assembly are misaligned.

3. The valve rod nut is damaged.

4. The thread of the valve rod nut is severely worn or broken.

5. Valve stem bending.

Solution:

Loosen the nuts on the packing gland plate slightly.

2. Adjust filling plate.

3. Disassemble, straighten threads, and clean away debris.

4. Replace valve rod nut.

5. Correcting Valve Rods.