in a complete set of water supply equipment, no negative pressure water supply equipment and variable frequency constant pressure water supply equipment, it is well known that the pipe fittings are with check Industrial Valves, butterfly valve, etc. , so complete sets of equipment, have the effect of what these parts?

we estimate will seldom pay attention to in use, only know that now the equipment is always the same, so we first understand the design principle of pipeline, of course no negative pressure water supply equipment, or the constant pressure water supply equipment, pipe fittings, the principle of basic, start from the head of the water, the water to the butterfly Industrial Valves, and then to the water pump, water pump out to check valves, and butterfly valve, and then the water head, very simple check valve is usually installed in the pump outlet ends, so the purpose of what is good? We know that the pump inlet are generally natural pressure, no negative pressure water supply equipment is the natural pressure pipe network, after entering the water pump, booster pump operation, pressurization to the set pressure, the water pressure is far greater than the inlet pressure, thus forming a pressure difference, if we do not install the check Industrial Valves, so the water pressure, will flow back to pump inlet and may even go back, so we can not meet the effect of voltage regulator, no negative pressure water supply equipment to run the pressure control is, when reach the set pressure, the equipment to stop running, so as to achieve energy saving effect, if there is no check valve, pressure is not stable, the equipment of the pump will not stop, so the check valve is very important in the whole equipment, the actual situation in our check valves also can appear sometimes the phenomenon of pressure relief, most of them are water containing sand or in this case is sundry, check the main interface card, the case, so let the equipment run a few times more, sediment clutter will hedge. So check valve is no negative pressure water supply equipment indispensable part.

Clouds of os&y valve failures surround the world of resilient seal gate valve in particular, simply because people don’t pay as much attention to the water gate valve as they should do.
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