he transmission side adopts the traditional worm-gear worm reducer, with the crank connecting the circular motion to the cross head. the travel adjustment adopts the linear displacement of the sliding axis of the inclined groove, and the rotation radius of the eccentric wheel is adjusted to the length of the stroke of the plunger.
the plunger seal of the plunger metering pump is sealed with packing, and the inlet and outlet valve adopts double ball valve or single layer mushroom valve.
3, the diaphragm metering pump plunger seal uses the piston ring form, the hydraulic chamber is equipped with new deflated, limit compensation valve, relief valve rolling garment poly tetrafluoroethylene diaphragm, can match the diaphragm rupture alarm device.
the diaphragm pump is the only pump that is non-moving seal and plunger non-contact medium. the fluid is separated from the medium by a liquid-driven mechanism. this can work in the long run and reduce the time for parking.