移动暴龙捕鱼

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The Principle of Check Valve

Check valve load changes is big, hoist frequency is small, once turned off or turned on, it will be very long life cycle and does not require moving parts turning. But once there is a request to switch, it must act flexibly.

Since most of check valve in the actual use is qualitatively use for fast closed, when the check valve is closed, Media is reverse flow, with the valve flap closed, the media quickly from the maximum speed back down to zero, and the pressure is rapidly increased, which may produce damaging effects on the pipeline system of "water hammer" phenomenon. For high pressure piping systems used multiple pumps in parallel, the water hammer problem becomes even more prominent.

移动暴龙捕鱼Water hammer is a pressure wave in pressure pipeline, which is due to changes of fluid flow in the pressure pipe caused the rise or fall of the hydraulic shock phenomenon.

Its physical principle is incompressibility of fluid, fluid inertia and elastic pipe combined effects. In order to prevent water hammer in the pipes, over the years, in check valve design, we use some of the new structure to ensure the use of check valve performance, while the impact of water hammer is minimized to make considerable development.

Check Valve

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