Slowly-closing check the characteristics of the pneumatic valve and its working principle

1, X slow close check pneumatic valve features:
X slow check pneumatic valve is closed by the main pneumatic valve, one-way pneumatic valve, needle valve, pneumatic ball valve, micro filter, pressure gauge of hydraulic control system of takeover. Through the hydraulic automatic operation, can cause the pneumatic valve to obtain the best opening and closing speed. Doing so can avoid water hammer occurrence of water hammer, so that we can achieve slowly-closing silencing effect.
X slowly-closing check self to be controlled by hydraulic pneumatic valve, no other devices and energy, convenient maintenance, open, delay period smoothly.
X slowly-closing check pneumatic valve pneumatic valve products are widely used in high-rise buildings, and living areas, such as water supply pipe network system, city water supply project.
2, X slowly-closing check the working principle of pneumatic valve:
when the pneumatic valve from the inlet water supply, water is a miniature of lv apparatus, ring needle, one-way pneumatic valve into the main control room noise, to bypass the ball surface for drainage to the downstream. This is because the needle of the pneumatic valve opening is smaller than the pneumatic ball valve opening, pneumatic valve is the main control room of the drainage speed is greater than the speed of the water, so will reduce the pressure of the control room, effect on the lower end of the main pneumatic valve plate of inlet pressure to open the pneumatic valve to the downstream water supply.
when the time to stop water supply pipe, if the water began to flow downstream part of backflow of water through the pneumatic ball valve to the main control room, this is because the role of one-way pneumatic valve, flow back water cannot flow from the main control room, this will result in the main control room slowly booster, slowly close the pneumatic valve.