Mute check valve is a kind of valve that relies on the flow of the medium itself and automatically opens and closes the valve flap, which is used to prevent the medium from flowing backward, also known as the check valve, one-way valve, backflow valve, and backpressure valve. Its main features and advantages are as follows:

Structural features

1.Automatic work: mute check valve is an automatic valve, no external power source, relying on the pressure of the media flow automatically open and close the valve.
2.A variety of types: mute check valve can be divided into rotary check valve (rotating according to the center of gravity) and lift check valve (moving along the axis).
3.Reliable sealing: mute check valve valve flap and valve seat using linear sealing structure, to ensure that the medium in the reverse flow can effectively cut off the flow, prevent leakage.

The performance characteristics

1. Mute effect: mute check valve using special design, such as streamlined internal flow path, short stroke valve flap opening and closing, etc., so that in the process of closing the noise generated by the minimal, the formation of mute effect.

2. Fluid passes smoothly: the internal flow path of the mute check valve is well designed, the fluid can keep smooth when passing, and the local head loss is small, which improves the efficiency of the system.

3. Small pressure loss: due to the internal flow path using streamlined design, and valve opening and closing stroke is short, so that the mute check valve in the process of opening and closing the pressure loss is small.
4. Strong applicability: mute check valve can be used for water supply and drainage, fire protection, HVAC systems and other occasions, especially in the need to prevent media backflow and water hammer damage to the pump is widely used in the occasion.

Other features

1.Small size, light weight: mute check valve has a compact structure, small size, light weight, easy to install and overhaul.
2.Anti-corrosion coating: the internal and external surfaces of some of the mute check valves are coated with non-toxic epoxy electrostatic spraying, which has good anti-corrosion properties and extends the service life of the valve.
3.Safe and reliable: mute check valve can effectively prevent the media backflow, prevent the pump and drive motor reversal, as well as the container medium leakage, improve the safety of the system.

However, the mute check valve also has certain limitations, for example, should not be used for media containing solid particles and viscosity. In addition, in the process of installation and use, it is necessary to comply with the relevant standards and norms, and carry out regular inspection and maintenance to ensure its reliability and safety.

Overall, with its unique structure and performance advantages, mute check valve has been widely used and recognized in many fields.