PKP Piston Pump uses reciprocating plunger to make fluid flow .I t can produce higher fluid pressure to carry a higher viscosity fluid ,and can be applied to arduous work and bad working conditions ,suitable for all kinds of fluid conveying ,circulation and extrusion process .According to the check valve quantity and shape .It can be divided into double -ball cylinder pump ,besides ,in accordance with the applicable fluid viscosity range and can be divided into low viscosity medium ,viscosity and high viscosity piston pump.