Don't underestimate the effect of stainless steel valves on the constant pressure water supply

by:AIRWOLF     2020-05-21
Don't underestimate the effect of stainless steel valves on the constant pressure water supply in constant pressure water supply stainless steel valve, its main function is to prevent the backflow medium, to prevent the pump and its pattern in reverse driving voltage, and the discharge of the containers within the medium. In the constant pressure water supply stainless steel check valve can also be used to give the pressure could rise to more than the main system of auxiliary system supply piping. Stainless steel valves according to different materials, the pipeline can be applied to a variety of media. Valve installed in the pipeline, that is, to become a full line of fluid components, one of the valve opening and closing process will be affected by it in system is influenced by transient flow state; On the other hand, the disc in closing feature and have hair effects on fluid flow state. Frequency conversion water supply characteristics of the check valve is in the load change is big, small open-close frequency, one in closed or open, apply cycle is very long, and does not require moving parts movement. But once again & other; Switch & throughout; Request, you must move the flexible, this is one of the more common mechanical movement is more demanding. Due to the check valve in the most practical use, qualitatively determine for fast shut down, and at the instant of the check valve is closed, the medium is a direction, with the disc in closing, the medium from the rapid rate of maximum back down to zero, while the pressure rise rapidly, which produce the possible damage to pipeline system & other Water hammer & throughout; Phenomenon. Secondary water supply equipment for more than one pump in parallel for high pressure pipeline system, the check valve water hammer problems become more prominent. Water hammer is one of the pressure transient flow in the pipeline pressure wave, which is caused by the change of the fluid velocity in pressure piping pressure jump or fall rise of the hydraulic impact phenomenon. Its physical reason is that the incompressibility of fluid, fluid motion inertia and elastic pipe combination results. In order to prevent water hammer in pipeline hidden trouble, people in the design of stainless steel check valve, adopted some new structure, new material, the guarantee of the check valve is applicable for the performance at the same time, minimize the impact of the water hammer has achieved gratifying progress. Stainless steel check valve flow refers to rely on the media itself, and automatically open and close the disc, the valve is used to prevent the backflow medium, main effect is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. Can also be used to give the pressure could rise to more than the system pressure of the secondary system supply piping. The role of this kind of stainless steel valves are only allowed to medium flows in one direction, the direction and stop the flow. This valve is normally automatic work, in a direction of flow of fluid pressure and valve opening; In the opposite direction of fluid flow, the fluid pressure since the overlap of the disc and the disc on the seat, thereby cutting off flow.
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