Schematic diagram of pneumatic eccentric ball valve for printing and dyeing plant Eccentric semi pneumatic ball valve: Q340F, Q640F, Q940F, Q340H, Q640H, Q940H, Q340Y, Q640Y, Q940Y;
Fault: leakage at both ends of the valve 1. Sealing gaskets at both sides fail. 2. The compression force of pipe flange is uneven or not tight.
Elimination method: 1. Replace the sealing gasket. 2. Press the flange bolts (evenly).
