Is the check valve installed at the inlet or outlet of the pump? Why?

I installed here in the water pump inlet, water pump with a 100 tons of water tank, there are many pumps, long time running, the pump will heat the cylinder, there is no water in the cylinder, the pressure does not go. The water pump is imported. Is the check valve broken or is the installation position wrong?

Is the check valve installed at the inlet or outlet of the pump? Mainly to see whether the water pump suction or press in? There are other factors, such as pressing first class. Generally both sides will be installed, each has its own role, but to look at the type of your pump and other parameters, you describe the situation is too simple to point out in detail, such as specific is that a few, or all? Also, how high the pump needs to be played, and the pressure is often determined. The check valve is installed on the water outlet side of the pump. I simple analysis may be the following reasons, need to have a simple to complex one by one investigation, 1, electrical specifications are matching? 2 、 the pump has air intake or air not discharged 3, piping layout is reasonable? 4, check valve installed counter, or check valve did not open, stuck,? This situation is rare, the general novices easily made 5, you missed the judgment? ------------------- most likely the breath, or simply not enough water, the check valve can be judged according to the type of installation position.

The function of the check valve is to prevent the medium from flowing back! Check valves, which are commonly known as check valves! Backflow of medium will cause the reverse of pump impeller, which may lead to the burnout of pump! Pumps used in industry are expensive nowadays! Ha-ha！ The check valve just protects the pump and piping!

The function of the check valve is to prevent the backflow of water and cause the phenomenon of air embolism, so the check valve is the water inlet of the water pump, and the first time the check valve must be filled with water above the check valve. In order to check the following air and water slowly discharged. Your phenomenon may be the pump power is too small, pressure can not open the check valve.

Check valves are installed at the outlet of the pump. The reasons are as follows:The function of the check valve in the water supply system of the water pump is to prevent the impact of the high pressure water on the impeller of the pump. System in operation, for some reason, when the water pump suddenly stops running, the pressure inside the pump disappears, and the high-pressure water connected with the water pump outlet will reverse flow backwater pump. When the pump outlet is equipped with a check valve, it will be closed immediately to prevent the high pressure water reverse flow backwater pump. Prevent water pump reverse and so on.Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent the media back flow valve, also known as check valve, Dan Xiangfa, counter flow valve and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium. The check valve can also be used to provide a supply to the auxiliary system where the pressure may rise above the system pressure. The check valve can be mainly divided into swing check valve (rotating by gravity center) and lift check valve (moving along the axis). The function of this type of valve is to allow the medium to flow in one direction and to prevent flow in the opposite direction. Usually the valve is automatically work, fluid pressure flow in one direction, the valve open; the opposite direction of fluid flow by gravity, fluid pressure and valve closing effect on the valve seat, thereby cutting off flow.

I told you what the meter said, "check the vacuum meter, and see if the vacuum gauge is pulled down." Without vacuum, there is air, and the possibility of pipeline leakage is greater. Upstairs that the pump is too small power is also a reason, the valve inside the valve holder is a copper block, there is not enough pumping force is not up. If the pipeline is short, that remove the valve tray, the water did not Xikou many words, direct pumping can be pumped up for a moment. Or replaced by the valve stop valve, turn off the valve, the water pump from the water diversion valve. In the opening of the pump at the same time, open the valve, take out the vacuum, there is no valve support will be easy to bring water. Check valve is generally not broken, the problem may be in the pipeline or pump. The pump long time idling is taboo, no water cooling, will be broken, must be careful next time.