We’re also specializing in strengthening the things management and QC method to ensure that we could maintain great gain while in the fiercely-competitive business for Best quality Factory Sale E319dl 320c 320dl 325c Excavator Relief Valve 129-8030 360-4599, Our corporation insists on innovation to promote the sustainable advancement of organization, and make us become the domestic high-quality suppliers.
We’re also specializing in strengthening the things management and QC method to ensure that we could maintain great gain while in the fiercely-competitive business for , We honor ourselves as a company that comprises of a strong team of professionals who are innovative and well experienced in the international trading, business development and product advancement. Moreover, the company stays unique among its competitors due to its superior standard of quality in production, and its efficiency and flexibility in business support.

Details

Sealing material:Caterpillar Excavator CAT Safety Valve 255-5661

Pressure environment:ordinary pressure

Temperature environment:one

Optional accessories:Safety Valve 

Type of drive:power-driven

Applicable medium:petroleum products

Points for attention

The piston-type hydraulic safety valve is a valve component in a hydraulic system that takes the piston as the core operating part and is used to limit the system pressure and provide safety protection.
I. Basic Definitions and Core Functions

Definition: By using a piston as a pressure-sensing and actuating element, when the system pressure exceeds the set value, the piston overcomes the spring force or external resistance to move, releasing the oil pressure and thereby preventing the system from being damaged due to overpressure.
Core functions:
Safety protection: As a “safety valve” of the system, it limits the maximum pressure (such as overload protection for hydraulic pumps);
Pressure stability: Some designs can assist in maintaining system pressure fluctuations within a small range (similar to the function of a relief valve).

Ii. Structure and Working Principle
1. Typical structural composition

Piston assembly: Cylindrical piston, the surface precisely fits with the valve hole, and the bottom or side bears the oil pressure.
Spring mechanism: It provides the reset force. The spring preload determines the opening pressure (which can be set by adjusting the screw).
Valve body: It includes the oil inlet, the oil outlet (usually connected to the oil tank) and the piston movement chamber.
Seals: Prevent oil leakage (such as O-rings, lip seals).

2. Working Principle (Taking direct-acting Type as an example)

Initial state: The piston presses against the valve seat under the action of the spring force, the oil inlet and outlet are separated, and the system operates normally.
When the pressure exceeds the limit: The pressure of the system oil acts on the bottom surface of the piston. When the thrust generated by the pressure exceeds the preload force of the spring, the piston moves upward (or to the right), opens the valve port, and the oil overflows back to the oil tank through the oil outlet, causing the system pressure to drop.
Dynamic balance: When the pressure drops below the set value, the spring pushes the piston to return to its original position, and the valve port closes, achieving automatic control of “overpressure relief and underpressure closure”.

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We’re also specializing in strengthening the things management and QC method to ensure that we could maintain great gain while in the fiercely-competitive business for Best quality Factory Sale E319dl 320c 320dl 325c Excavator Relief Valve 129-8030 360-4599, Our corporation insists on innovation to promote the sustainable advancement of organization, and make us become the domestic high-quality suppliers.
Best quality 360-4599 and 129-8030, We honor ourselves as a company that comprises of a strong team of professionals who are innovative and well experienced in the international trading, business development and product advancement. Moreover, the company stays unique among its competitors due to its superior standard of quality in production, and its efficiency and flexibility in business support.