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Self-priming diesel water pumps

Shijiazhuang An Pump Machinery Co., Ltd is one over 30 years experienced pump manufacturer in mining andself-priming diesel water pump.

In normal conditions, common centrifugal pumps are unable to evacuate the air from an inlet line leading to a fluid level whose geodetic altitude is below that of the pump. Self-priming diesel water pumps have to be capable of evacuating air (see Venting) from the pump suction line without any external auxiliary devices.

Centrifugal pumps with an internal suction stage such as water jet pumps or side channel pumps are also classified as self-priming diesel water pumps.

Self-priming diesel water pumps

Centrifugal pumps which are not designed with an internal or external self-priming stage can only start to pump the fluid after the pump has initially been primed with the fluid. In addition, a suction-side swing check valve or a vent valve must be fitted to prevent any siphon action and ensure that the fluid remains in the casing when the pump has been stopped. In self-priming diesel water pumps with a separation chamber the fluid pumped and the entrained air bubbles are pumped into the separation chamber by the impeller action.

An Pump Machinery products include slurry pump, sewage pump, water pump, acid resistant or chemical pump, irrigation pumps, fire pumps and other products exported to over 90 countries all over the world.

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