25/222627 Secondary Pressure Relief Valve 210bar for JCB Backhoe Loader 3CX 4CX

Maximize the productivity of your JCB equipment with the 25/222627 Valve. This high-performance component ensures excellent hydraulic responsiveness and stability, thanks to its refined design and rigorous testing. The use of robust materials enhances its resistance to impact and corrosion, guaranteeing reliable service in tough applications. With improved sealing technology, it effectively prevents fluid leaks and reduces wear. Easy to fit and requiring minimal maintenance, this valve is an efficient solution for sustaining peak machine performance.

Product Overview

25/222627, also written as 25-222627 or 25222627, is a secondary pressure relief valve / overload protection valve for JCB hydraulic systems. Installed on specific working oil circuits of multi-way directional valve blocks, it absorbs instantaneous high pressure spikes triggered by external impact, such as the bucket hitting hard rock during digging or loading operations. This protects individual hydraulic cylinders and connecting pipelines from pressure damage. This part has undergone official design updates by JCB. The supersession part number is 25/221929, and both part numbers can retrieve fully equivalent replacement parts for maintenance and ordering. It is widely fitted on mid and large-size JCB backhoe loaders.

Key Specifications

FAQs

Q: Which JCB machines fit 25/222627 secondary relief valve?

A: It fits full series JCB 3CX and 4CX backhoe loaders, especially units with advanced pilot control and extendable dipper arm. Also compatible with 214, 215, 217 and 4C series models.

Q: What signs indicate a faulty secondary relief valve?

A: Common symptoms include unstable dipper arm operation, weak arm holding force, jerky movement under impact loads, hydraulic line vibration, or local pressure surges that damage cylinder seals and hoses.

Q: Can I use 25/221929 to replace 25/222627?

A: Yes. 25/221929 is JCB official upgraded replacement. Both part numbers refer to fully interchangeable equivalent valves for equipment repair.

Q: What is the difference between secondary relief valve and main relief valve?

A: The main relief valve safeguards the whole hydraulic system, while this secondary relief valve only protects individual circuits. It absorbs sudden impact pressure spikes on the dipper arm circuit to protect separate cylinders and hoses.

25/222627 Valve For JCB 25222627