Construction Machinery Relief Valve Series
- Hydraulically Operated Check Valve and Valve Block
- Construction Machinery Relief Valve Series
- Standard Valve Cavity and Custom Valve Block
- Standard Valve Block and Hydraulic Valve Set
- Load Control Valves and Others
- Logic Element
- Flow Control Valve
- Pressure Control Valve
- Directional Control Valve
- Solenoid Valve
0102030405
KYB Main Relief Valve
KYB Main Relief Valve
KYB Main Relief Valve
Suitable for equipment equipped with KYB hydraulic systems—especially excavators and other construction machinery, engineering vehicles, this main relief valve is from Ningbo Longerfa Hydraulic Co., Ltd.—a professional hydraulic parts manufacturer in Ningbo, China, specializing in cartridge valves and valve blocks.
Longerfa holds ISO9001/ISO45001 certifications and patents, with advanced CNC equipment and testing tools. Every KYB main relief valve undergoes 100% performance verification to meet industry standards and the precise operational requirements of KYB hydraulic systems (which are core configurations for many excavator brands like Case and domestic mainstream models).
As a core protective component of KYB hydraulic systems, this valve automatically releases excess pressure when the system pressure exceeds the preset value, effectively preventing damage to key excavator parts like hydraulic pumps, cylinders and control valves. It fits matching technical specs for direct replacement, significantly reducing excavator maintenance downtime and ensuring rapid restoration of operation. Trusted by global aftermarket users, it’s widely applied in construction, mining, road construction and heavy engineering fields where excavators with KYB hydraulic systems are utilized.
Adhering to " Quality First, Service First," Longerfa provides a dependable choice for aftermarket maintenance and replacement of excavators and other equipment with KYB hydraulic systems, safeguarding the stable, safe and efficient operation of the entire hydraulic circuit.