723-40-92403 7234092401 Relief Valve for PC400-8 Main Control Valve Parts

• Application

EXCAVATORS PC400 PC450 PC550 Komatsu

A relief valve is a critical component in many fluid systems, such as hydraulic or pneumatic systems, to protect against overpressure and prevent damage or failure. It functions independently of the main control valve and is designed to relieve excess pressure by allowing fluid to flow out of the system when pressure exceeds a preset limit.

Here's a basic description of a relief valve and how it differs from the main control valve:

Purpose:

Main Control Valve: The main control valve is primarily responsible for regulating the flow rate or pressure of fluid within a system. It is used to control the desired operation of the system, such as adjusting the flow of fluid to a specific level.
Relief Valve: The relief valve, on the other hand, is a safety device designed to protect the system from overpressure. It only activates when the pressure in the system exceeds a predetermined setpoint.
Operation:

Main Control Valve: This valve is operated actively by the user or a control system to achieve a specific task. It can be adjusted to control flow rates, pressure, or other parameters within the system.
Relief Valve: A relief valve operates passively. It remains closed under normal operating conditions. When the pressure in the system exceeds a safe limit, the relief valve automatically opens to allow excess fluid to escape and return the system to a safe pressure level.
Setting and Adjustment:

Main Control Valve: Users or automated control systems can adjust the main control valve to control the system's output parameters. This adjustment is usually done within specified operating ranges.
Relief Valve: Relief valves are typically set to open at a specific pressure limit determined by system requirements or safety regulations. They are not meant to be actively adjusted during normal operation.
Position in the System:

Main Control Valve: This valve is positioned to regulate the flow or pressure of fluid within the system, typically closer to the points where the fluid is used or distributed.
Relief Valve: The relief valve is usually positioned downstream of the main control valve and closer to the system's pressure source. It is strategically placed to protect the system from overpressure.

• More other valve for KOMATSU equipments

• Parts List Diagram

• Description

Hydraulic pump and valve parts are designed precisely to work in a hydraulic system to meet the prime product requirements for machine performance, reliability, durability, operating costs and productivity.

• Advantage

• Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Cutomer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance

• Packing & Delivery

* Strong carton or wooden box for gear components. Wooden box for gearbox assembly

* Delivery methods: By Sea, By air to local internation airport, By express like DHL TNT FEDEX