What are the common faults and solutions of check valves?
A check valve , also known as a one-way valve, is an automatic valve that ensures that liquid or gas can only flow in one direction, effectively preventing reverse flow. Valve leakage Reason for malfunction: Sealing surface damage: Impurities in the fluid wash, corrosion, or frequent opening and closing operations cause wear on the sealing surface of the valve disc and seat. For example, solid particles in sewage pipes are prone to scratching the sealing surface. Aging of sealing materials: Poor quality or prolonged use of sealing materials can cause rubber and other sealing materials to age, harden, and deform. In high-temperature environments, the aging rate of rubber seals will accelerate. Improper installation: During installation, the valve disc is not aligned with the valve seat, or the pipeline connection is not tight, resulting in stress that prevents the valve disc from tightly fitting the valve seat. Solution: Repair or replace sealing surface: Grinding repair can be car...