JPX Small Flow Plunger Metering Pump

JPX series plunger metering pump are plunger/piston type positive displacement, reciprocating metering pumps with high performance and accuracy dosing features. The plunger makes harmonic push and pull motion by the crankshaft. It is widely used in industries such as oil and gas, chemical or petrochemical, foaming, electricity, boiler, etc.

Product Features：

Capacity range 2-195lph,10-400bar
Flow rate can be adjusted via unique adjusting mechanism from 0-100%
The adjustment can be carried when pump is in operation or at stop
The steady accuracy is ±1% from 30%-100% of the maximum output
Automatic operation is achieved by variable speed drive
Special application for high temperature or low temperature is available with cooling jacket or heating jacket
 The use of ceramic plunger or ceramic spray plunger has strong corrosion resistance and is suitable for various harsh working conditions. It has high surface finish, high hardness and long service life. It is more than 3 times that of ordinary polishing, electroplating and other process plungers.
Patented packing seal assembly, simple structure, compressible and self-locking, high working pressure. Using PTFE base material, good corrosion resistance and self-lubricating performance, with the company's standard ceramic plunger, long life.

How does plunger pump work?

Plunger reciprocates in the pump chamber, under the action of the check valves, the liquid is sucked and discharged alternately. When undertaking suction action,the plunger is pulled back, which makes the pressure immediately drops inside the liquid end. The discharge valve is closed due to the low pressure in the chamber, and the suction valve ball is open with the liquid being sucked into the pump head chamber. When the suction stroke ends, the plunger movement momentarily stops and the pressure in the liquid chamber equalizes with the pressure in the suction line causing the suction valve ball to reseat. When the plunger pushes forward, the pressure immediately rises inside the liquid chamber. When the liquid chamber pressure rises above the discharging line pressure, the discharge valve ball is pushed upward and the liquid is discharged into the discharge line. The discharge valve is closed when suction. The suction valve is colsed when discharging.This can prevent from backflow. To obtain accuracy dosing, the discharge line pressure should higher than the suction line.

Product Parameters：