The difference between non-negative pressure water supply equipment and box-type non-negative pressure water supply equipment

The difference between non-negative pressure water supply equipment and box-type non-negative pressure water supply equipment

No negative pressure water supply equipment is also known as the pipe network pressure water supply equipment, the current market is mainly tank-type no negative pressure water supply equipment and box-type no negative pressure water supply equipment. Non-negative pressure water supply equipment is a pressurized water supply unit, which is directly connected with the municipal water supply pipe network and superposed in series on the basis of the remaining pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure (the set pressure must be higher than the pressure demand of the direct supply area of the residential area, generally not less than 1.2Kg).

At present, the difference between non-negative pressure water supply equipment and box-type non-negative pressure water supply equipment, there are two main types of non-negative pressure water supply equipment used in the market:

Steady flow tank type (tank type superimposed pressure water supply equipment): tank type non-negative pressure water supply equipment is equipped with a pressure sealing tank in front of the water pump, and a steady flow compensator (also known as "vacuum eliminator") is added inside or outside the tank. The water pump absorbs water through the steady flow tank and supplies it to the user after pressurization. The influence on the public water supply network is reduced by the regulating effect of the steady flow compensator.

Adjusting water tank type (box type superposed water supply equipment):

Box-type non-negative pressure water supply equipment, this method has a certain amount of water reserves, can be used in water supply network unstable areas.

Therefore, the difference between non-negative pressure water supply equipment and tank-type laminated water supply equipment is that tank-type laminated water supply equipment is a kind of non-negative pressure water supply equipment.