ZAX450 MAIN RELIEF VALVE

ZAX450 MAIN RELIEF VALVE

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

ZAX450 MAIN RELIEF VALVE

Product Overview

ZAX450 Main Relief Valve is a threaded‑in CARTRIDGE VALVE, serving as an essential Hydraulic valve for Hitachi ZAX450 excavator Machine. As the core pressure‑protection component of the hydraulic system, this cartridge‑type Hydraulic valve controls the maximum operating pressure, guards against pressure surges, and prevents overload damage to the whole hydraulic system and key parts of the Machine. It is a high‑quality aftermarket replacement for damaged or worn‑out original relief valve assemblies in equipment maintenance.

Technical Specifications

- Model: ZAX450 Main Relief Valve

- Product Type: CARTRIDGE VALVE, Main Relief Hydraulic valve

- Compatible Machine: Hitachi ZAX450 excavator

- Mounting: Threaded cartridge installation inside main control valve block

- Function: System pressure limiting, overload protection for hydraulic system

- Working Medium: Anti‑wear hydraulic oil

- Feature: Fast‑response pressure relief, stable pressure setting

Working Principle

As a key CARTRIDGE VALVE of the main control valve assembly, this Hydraulic valve continuously monitors oil pressure within the hydraulic system. When the pressure rises above the preset value, the valve spool opens to bypass excess hydraulic oil back to the oil reservoir. This mechanism avoids over‑pressure failure of hydraulic pumps, cylinders and other components of the Machine. It maintains consistent working pressure to guarantee smooth digging, slewing and traveling operations of the excavator.

Core Advantages

1. Manufactured according to original dimensional standards, excellent interchangeability for ZAX450, no modification required for installation on the Machine.

2. Precision‑processed spool and valve seat, low internal leakage, keeps stable pressure regulation performance of the hydraulic system.

3. Rapid reaction to pressure spikes, effectively protects the entire hydraulic system from overload impacts.

4. High‑strength wear‑resistant alloy material, adapts to heavy‑load and frequent‑cycle working conditions at construction sites.

5. Optimized sealing structure, minimizes oil leakage and reduces maintenance cost for the Machine.

Application Scope

This ZAX450 CARTRIDGE VALVE is specially applied to Hitachi ZAX450 excavator Machine. It acts as the critical safety Hydraulic valve for the main hydraulic system. Widely used in machinery repair workshops to fix faults such as weak action, abnormal pressure and system overload.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump , hydraulic valve , hydraulic winch, hydraulic system

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