Poor sealing performance
Its sealing effect is weaker than that of a lift check valve, and it is easy to leak due to component wear or manufacturing process problems, affecting system efficiency.
Easy to generate noise and vibration
It is easy to generate obvious noise when opening and closing under high pressure and high speed flow conditions, and the impact of water flow may cause valve vibration.
Susceptible to pollution and wear
The internal structure is complex and easily blocked by dirt or particles; the valve hinge and sealing surface are prone to wear after long-term use, and frequent maintenance is required.
Installation and use restrictions
It has high requirements for installation space and needs to be installed horizontally or at a specific tilt angle; it is not suitable for conveying flammable, explosive or toxic media.
Limited application scenarios
It is not suitable for manufacturing small-diameter valves (usually DN≥50), and high-frequency opening and closing or pulsating flow scenarios are prone to accelerate seal failure