YF06-09 Threaded Cartridge Valve
1. Product Overview
YF06-09 is a 06-port screw-in threaded relief cartridge valve for compact integrated hydraulic manifolds. It limits maximum system pressure via spring-set threshold, protects downstream pumps, cylinders and fittings from overload damage. Its miniature threaded structure suits tight valve block layouts, widely adopted for small construction machinery, portable clamping jigs, agricultural equipment and mini hydraulic power packs for pressure limiting and circuit safety protection.
YF06-09 Threaded Cartridge Valve is a precision Hydraulic valve. It is a screw-in type CARTRIDGE VALVE, acting as an important pressure control component in the hydraulic system. This threaded CARTRIDGE VALVE can be directly inserted into integrated manifold blocks, simplifying pipeline layout and greatly reducing space occupation, which helps make the whole hydraulic system more compact. As a vital pressure regulating component, this Hydraulic valve effectively limits system pressure and safeguards normal operation of the hydraulic system.
2. Core Technical Specifications
Parameter Specification
Mounting Cavity Standard 06-size threaded cartridge installation
Nominal Working Pressure 21 MPa, peak withstand pressure up to 25 MPa
Max Allowable Flow 22 L/min for small hydraulic loops
Adjustable Pressure Range Customizable within common 3–21 MPa range by tuning top adjustment screw
Seal Material Oil-resistant nitrile rubber (NBR)
Recommended Fluid ISO VG32 / VG46 anti-wear mineral hydraulic oil
Operating Temperature -10℃ ~ 80℃
Installation Direct screw-in mounting inside standard 06 valve manifolds
3. Working Principle
The valve core is held sealed by preset spring force under normal operating pressure. When inlet hydraulic pressure exceeds the calibrated spring pressure, fluid pushes the poppet open to divert excess flow back to the tank, keeping system pressure stable below the overload limit. Once pressure drops below the set value, the spring resets the poppet to shut the overflow passage automatically. The tight poppet sealing structure cuts internal leakage for reliable pressure control.
4. Key Advantages
1. Compact threaded design occupies little manifold space for modular mini circuit assembly
2. Top screw enables easy on-site pressure adjustment to match diverse load demands
3. Hardened valve core withstands vibration and abrasion, fitting rough job-site conditions
4. Universal 06 cavity size supports interchangeable replacement with mainstream peer valves
5. Durable anti-aging seals reduce maintenance frequency and long-term operating costs
5. Typical Applications
- Overload pressure limiting for small hydraulic clamping fixtures and jacking tools
- Safety protection of auxiliary oil circuits for mini excavators, farm machinery and compact loaders
- Pressure stabilization for small manual/electric hydraulic power units
- Peak pressure suppression for miniature cylinder drive loops
