Plunger metering pumps are gaining increasing attention and are widely used in the measurement of high viscosity media such as syrup, chocolate and petroleum additives.
Features:
1. Plunger metering structure is relatively simple, Plunger-type Metering Pump high precision measurement.
2.DR pump can measure high viscosity even with large particles of impurities in the liquid, good reliability, wide adjustment range.
3. Suitable for high pressure, small flow of the occasion.
4. The packing seal can not avoid leakage.
5. Traffic can be adjusted from zero to 100%.
6. Double plunger design, pulse small, smooth work.
7. Maximum flow of 15,500 l / h, the maximum pressure of 64 MPa.
8. Can transport two different media, can be electronically controlled or remote control.
9. Plunger pump head structure is simple, economical, Plunger-type Metering Pump high precision measurement, the need to select and maintain a good seal.
Plunger metering pumps are generally divided into single plunger metering pumps, horizontal plunger metering pumps, axial plunger metering pumps and radial plunger metering pumps.
1, single plunger metering pump
The main components of the composition of eccentric wheel, plunger, spring, cylinder, two one-way valve. A closed volume is formed between the plunger and the cylinder bore. Eccentric rotation of a rotation, the plunger up and down a reciprocating movement, downward movement of oil, upward movement of oil. Plunger-type Metering Pump The volume of oil discharged per revolution of the pump is called displacement, and the displacement is only related to the structural parameters of the pump.
2, horizontal plunger metering pump
Horizontal plunger metering pump is a few plungers (usually 3 or 6) side by side installation, with a crankshaft through the connecting rod slider or by the eccentric shaft to push the plunger to do reciprocating motion, to achieve suction, Liquid hydraulic pump. Plunger-type Metering Pump They also use valve-type distribution device, and most of the quantitative pump. Coal mine hydraulic support system in the emulsion pump are generally horizontal plunger metering pump.
3, axial piston metering pump
Axial plunger metering pump is the piston or plunger reciprocating direction parallel to the cylinder center axis of the plunger metering pump. Plunger-type Metering Pump The axial plunger metering pump operates with the volume change resulting from the reciprocating motion of the plunger parallel to the drive shaft in the plunger hole. As the plunger and plunger holes are round parts, processing can achieve a high degree of precision with, so the volume efficiency is high.
4, straight shaft swash plate type
Straight axis swash plate type plunger metering pump is divided into pressure oil type and self-priming type two. Pressure oil-based hydraulic pump are mostly used pressure of the fuel tank, by the pressure of the hydraulic fuel tank, after each start the machine, Plunger-type Metering Pump you must wait until the use of air pressure tank to operate the machine. If the pressure of the hydraulic tank is not enough to start the machine, the hydraulic pump will be caused by the phenomenon of sliding shoes, the pump will cause the return plate and the plate of the normal wear and tear.
