Hydraulic gear pump HGP-2A-F3R-X-4BJ for sale

HGP-2A Gear Pump function well under high temperature with Viton’s seal. It can also run under high pressure with the oil less bearing design.

Model Definition

Specification

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What are the parts of the gear pump

 

Gear pump parts by the differential housing, eat the tire, tooth belt, erosion, core-pulling mechanism, carding, differential housing, driven plate, gear and gear group.

 

Gear pump is dependent on the pump cylinder and meshing gear formed by the change in working volume and movement to transfer liquid or pressurized rotary pump. Two closed Spaces are composed of two gears, pump body and front and rear covers. When the gear rotates, the volume of the space on the gear side becomes larger from small to large, forming a vacuum. The liquid is sucked in. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. Gear pump outlet pressure is entirely dependent on the size of the pump outlet resistance.

 

 

Why is the gear pump gear more correction gear?

 

 

The concept of gear pump is very simple, that is, its most basic form is the same size of two gears in a tight fit of the housing meshing rotation, the housing of the internal similar to the "8" shape, two gear installed in the inside, the outside diameter of the gear and on both sides and the housing with a tight fit. The material from the extruder enters the middle of the two gears at the suction inlet and fills the space. With the rotation of the teeth, it moves along the shell and finally is discharged when the two teeth are engaged.

 

 

In technical terms, the gear pump is also called positive displacement device, that is, like a cylinder piston, when one tooth into another tooth of the fluid space, the liquid is mechanically squeezed out. Since the liquid is incompressible, the liquid and the tooth cannot occupy the same space at the same time, so the liquid is excluded. As the teeth of the continuous mesh, this phenomenon is continuous in the occurrence, so also in the pump outlet to provide a continuous discharge, pump every turn, the amount of discharge is the same. With the continuous rotation of the drive shaft, the pump also uninterrupted discharge of fluid. Pump flow is directly related to the speed of the pump.

 

 

In fact, there is a very small amount of fluid loss in the pump, which makes the efficiency of the pump can not reach 100%, because these fluids are used to lubricate the bearing and gear on both sides, and the pump body is never without clearance with, so can not make the fluid 100% from the outlet discharge, so a small amount of fluid loss is inevitable. However, the pump can still run well, for most extruded materials, still can achieve 93% ~ 98% efficiency.

 

For viscosity or density in the process of fluid change, the pump will not be much affected. If there is a damper, such as a strainer or a restrictor on the discharge side, the pump pushes fluid through them. If the dampers change during operation, that is, if the strainer becomes dirty, clogged, or the back pressure of the limiter increases, the pump will maintain a constant flow until it reaches the mechanical limit of the weakest part of the device (usually with a torque limiter).

 

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Gear pump purchase need to pay attention to what? ZF hydraulic remind you:

 

1 if the bulk purchase of gear pump, must choose the regular gear pump manufacturers! (for example: ZF hydraulic)

 

2 to buy gear pump must sign a formal contract with the manufacturers!

 

3. Before purchasing gear pump in large quantities, be sure to let the manufacturer make prenatal sample confirmation!

 

ZF hydraulic company provides professional gear pump bulk purchase, looking forward to cooperating with you!