Reciprocating pump is a kind of volumetric pump, which depends on the reciprocating movement of the piston in the cylinder of the pump to change the working volume, so as to achieve the purpose of conveying liquid.
The piston type is taken as an example to explain the working principle of reciprocating pump. The piston pump mainly takes the reciprocating movement of the piston in the pump cylinder to inhale and remove the liquid. When the piston starts from the extreme left side position moves to the right, the studio gradually expanded volume, lower indoor pressure, fluid top open water valve into the piston so that the space until the piston to move to the far right end, the process for the pump process of water absorption. When the piston moves from the right side to the left side, the fluid filled with the pump is pressed, and the suction valve is closed, and the water pressure valve is discharged. This process is called the water pressing process of the pump.
The piston continues to reciprocate, and the water absorption and water pressure process of the pump is continuously alternately carried out. The pump characteristics are: pump pressure can be unlimited, flow and pressure has nothing to do, with self-priming capacity, flow is not uniform. This pump is suitable for small flow and high pressure infusion systems.
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