Product Overview
The main technical parameters of groove type soundproof check valve are nominal pressure 1. O1.62.5 test pressure shell strength 1.52.43.75 sealing performance 1.11.762.75 applicable medium product types: cast iron, ductile iron, copper carbon steel, stainless steel applicable medium: water, water vapor, oil, air, water vapor, water vapor, oil, air nitric acid working temperature sealing surface material: rubber, acetonitrile rubber, ethylene propylene rubber, fluorine rubber, polytetrafluoroethylene plastic, copper stainless steel
Working temperature ≤ 60 ≤ 80 ≤ 250 ≤ 250 ≤ 200 ≤ 200 ≤ 200. Silencing check valve refers to a valve that automatically opens and closes the valve disc based on the flow of the medium itself, used to prevent the backflow of the medium. It is also known as a check valve, one-way valve, silencing check valve, backflow valve, and back pressure valve. Check valve belongs to an automatic valve, whose main function is to prevent medium backflow, prevent pump and drive motor from reversing, and prevent the release of container medium. Check valves can also be used on pipelines to supply auxiliary systems where the pressure may rise above the system pressure.
The valve disc of the silencing check valve is disc-shaped and rotates around the axis of the valve seat channel. Due to the flow line of the internal channel, the flow resistance is smaller than that of the rising butterfly check valve, making it suitable for large diameter applications with low flow velocity and little flow variation. However, it is not suitable for pulsating flow, and its sealing performance is inferior to that of the rising and falling type. Butterfly check valves are divided into three types: single disc, double disc, and half disc. These three forms are mainly classified according to the valve diameter, in order to prevent hydraulic shock when the medium stops flowing or flows back.
Groove type soundproof check valves are widely used in water supply and drainage, fire protection, air conditioning, gas, petroleum, chemical, water treatment, municipal, shipbuilding and other pipeline engineering to control fluid flow.