Characteristics of single-stage pressure regulating circuit for four column hydraulic press

2026-03-09 19:36:03

Characteristics of single-stage pressure regulating circuit for four column Hydraulic Press

The single-stage pressure regulating circuit of the overflow valve in a four column hydraulic press is composed of a quantitative pump, an overflow valve, and a hydraulic cylinder, and is a basic pressure regulating circuit. Has the following characteristics:

The opening pressure of the overflow valve can be adjusted by adjusting the pressure tension spring. If the pre tightening amount of the pressure tension spring of the overflow valve is set, the oil supply pressure value can be set. The practical operating pressure of the hydraulic press system is determined by the load.

When the external load pressure is less than the set pressure of the relief valve, there is no relief flow at the relief valve of the hydraulic press. When the relief valve is manually adjusted in a single-stage operation, the pressure of the relief valve does not need to be adjusted in one operation of the system pressure regulating circuit.