How to Solve the Leakage Fault of the Blind Valve

Description: During operation, blind valves may experience leakage at critical interfaces (valve seat/bonnet, gasket, or other areas), causing environmental contamination or production downtime.

Integrated Solution, Following As:

Gasket Inspection & Replacement: Verify proper gasket installation and check for wear/deformation. Replace if damaged.

Sealing Surface & Bolt Adjustment: Ensure sealing surfaces are flat and free of debris. Adjust sealing screw torque evenly to prevent uneven compression.

Bolt Tightness Check: Re-torque all bolts to manufacturer specifications to eliminate stress-induced leaks.

Pressure Testing: Use low-pressure air/water to identify hidden leaks in hard-to-reach areas.

Valve Plate Alignment: Confirm the plate seats perfectly with the valve body to avoid misalignment-induced leaks.

Media Compatibility Audit: Ensure the fluid/gas matches the valve’s material and pressure ratings to prevent corrosion/gasket degradation.

Systematic Seal Upgrade: Replace standard gaskets with high-temperature/chemical-resistant materials if recurring leaks occur.

Severe Leakage: Replace the entire blind valve for guaranteed zero leakage.