What are the causes of oil leakage in high pressure piston pump?

High pressure piston pump is a reciprocating pump, belongs to the volume pump, the plunger depends on the eccentric rotation of the pump shaft drive, reciprocating movement, the suction and discharge valve are one-way valves. When the plunger pulls outside, the pressure in the chamber is reduced, the outlet valve is closed, lower than the inlet pressure, the inlet valve is opened, the liquid enters; When the plunger is pushed inside, the studio pressure increases and the inlet valve closes. When the outlet pressure is higher, the outlet valve opens and the liquid is discharged. When the drive shaft drives the cylinder to rotate, the swash plate pulls the plunger out of the cylinder or pushes it back, completing the suction and discharge process.

The oil in the working chamber composed of the plunger and the cylinder hole is communicated with the suction and discharge chamber of the pump respectively through the oil distribution plate. Variable mechanism is used to change the dip Angle of the swash plate, and the displacement of the pump can be changed by adjusting the dip Angle of the swash plate.

The main reasons for oil leakage of high-pressure piston pump are as follows:

1. spindle oil seal damage or shaft defects, scratches;

2. The internal leakage is too large, resulting in increased pressure at the oil seal, and damage or rush out of the oil seal;

3. The discharge pipe is too thin and too long, causing the seal to leak oil;

4. The external tubing of the pump is loose, the pipe joint is damaged, and the sealing pad is aging or cracked;

5. variable adjusting mechanism bolts loose, seal damage;

6. high pressure piston pump cleaning machine cast iron pump housing has sand holes or poor welding

Zhejiang Trojan People Machinery Co., Ltd.  is a professional manufacturer of high pressure cleaning machines and high pressure pumps. Since its establishment, the company has been trying to develop a variety of high-grade high pressure cleaning machines, small high pressure cleaning machines, industrial high pressure cleaning machines and high pressure pump products. Advanced production technology, strong technical force, scientific management system, modern production line manufacturing, as well as complete testing equipment and quality control procedures, so that the company's product quality has made a great leap forward, our company in line with the "quality-oriented, forge ahead, strive for perfection, create a first-class brand" enterprise purpose, Adhering to the "sincere service, take you as the respect" service concept, to dedicate more modern high-grade high pressure washer products with novel style and diversified design for customers. Fully meet the taste and demand at home and abroad, welcome customers to come to consult.