OEM 803103615 The XCMG Pressure Relief Valve 803103615 is a genuine hydraulic valve that limits circuit pressure and protects components on XCMG excavators.
Issued under the official part number 803103615, the valve gives technicians a correctly set and correctly threaded relief element for the port it serves.
The body is machined from steel bar, then threaded and finished so the hex takes a standard spanner or socket.
Thread size, seat form and spring setting follow the XCMG drawing, so the valve opens at the pressure the circuit is rated for.
A protective plating resists corrosion, which keeps the thread free and stops rust bleed around the valve body.
Every valve is checked for thread gauge, seat tightness, cracking pressure and surface finish before the batch is packed.
Used on main control valves, travel motors, swing motors and pump regulators, this relief valve guards the circuit from overpressure.
The 803103615 valve is machined to the XCMG drawing, so thread size, seat form and body length match the port it threads into.
The spring is set to the OEM cracking pressure, so the valve opens at the right point and the circuit is not overpressured.
A properly lapped seat closes cleanly after relieving pressure, so the valve does not weep when the circuit is back at work.
Threads are rolled or cut to the OEM class, so the valve starts by hand and pulls down without galling or cross threading.
The solid steel body takes full torque without distorting, so the setting stays stable through pressure pulses and vibration.
A protective plating resists rust, so the thread stays free and the valve comes out easily at the next service.
Because the part matches the OEM number, a technician installs it straight from the bag without shims or re-setting on the bench.
A sound relief valve protects pumps, motors and hoses from pressure spikes, which keeps the whole circuit in one piece.
Production starts with certified steel bar, checked for grade, diameter and surface condition before machining begins.
Bodies are turned and threaded on CNC machines, so the thread, seat and internal bore run true to the drawing.
Springs, poppets or spools are assembled to the drawing, then each valve is set and verified on a pressure test bench.
Inspectors check thread size, seat tightness, cracking pressure and surface finish on a gauge built for this exact part number.
Batch records trace every 803103615 valve to its steel lot and assembly run, so a quality question is settled quickly.
A relief valve opens when circuit pressure reaches its setting, so excess oil bypasses to tank and pressure cannot keep rising.
Without it, a stalled cylinder or a blocked line would send pressure far past the component rating and burst a hose or pump.
The genuine 803103615 opens at the OEM setting, so the circuit is protected exactly as the machine was designed.
A correct seat and spring avoid both a valve that leaks at low pressure and one that never opens until damage is done.
A sound relief valve protects pumps, motors and hoses, which keeps service intervals predictable and extends circuit life.
The 803103615 valve is fitted with a torque wrench, a spanner set and a pressure gauge during hydraulic service work.
Release system pressure, drain the affected line and clean the port area so no dirt enters the circuit during the repair.
Check the port thread and seat for damage, then wipe the joint clean and confirm no old seal or thread debris remains.
Fit the new seal, thread the valve in by hand and confirm it turns freely before applying the specified torque.
Start the machine and check the relief pressure with a gauge, so the circuit is confirmed to open at the right point.
Run the machine slowly and check the valve for weeping after the first pressure cycles, then recheck the torque.
At service intervals, look for oil film, chattering or a pressure reading that has drifted and renew the valve before failure.
Every 803103615 valve is produced in an ISO 9001 and ISO 14001 certified plant with traceability from bar to carton.
Incoming steel is checked for grade, and finished valves are gauged for thread size, seat dimensions and body length.
Each batch is inspected for thread damage, seat scoring and assembly marks, since these defects cause leaks or wrong settings.
Post-production checks include visual review, dimensional verification and a pressure set test on the XCMG valve bench.
Sample valves from each batch undergo pressure cycling and salt spray tests to confirm setting stability and corrosion performance.
Cheap copies often have poor seats or weak springs, so the valve leaks at low pressure or never opens at the set point.
A valve with the wrong thread or seat angle will not seal in the port, and a soft body can deform or crack under pressure.
The genuine 803103615 is made to the XCMG drawing, so thread, seat, spring rate and setting match the original part.
Using genuine XCMG parts also preserves warranty coverage, protects resale value and keeps fit with OEM circuits.
Backed by XCMG global quality standards and technical support, this relief valve performs reliably in harsh conditions.
Choosing the genuine 803103615 valve prevents a pressure spike from turning into a burst hose or a destroyed pump.
A leaking relief valve bleeds oil and heats the circuit, which wastes fuel and wears pumps and motors faster.
A correctly set valve keeps working pressure steady, so cylinders and motors deliver the performance the machine was designed for.
Reliable pressure control also extends hose and component life, which lowers the total cost of ownership across a fleet.
Service records from construction and mining fleets show genuine XCMG hydraulic parts cut unplanned downtime.
XCMG produces the 803103615 valve with efficient machining runs and tight material control that keep production scrap low.
A long service life means fewer replacements, which reduces the steel and energy tied to each valve.
Stopping oil seepage protects soil and groundwater, helping operators meet rules on environmentally sensitive sites.
The steel in this part complies with RoHS and REACH requirements for safe handling and responsible recycling.
The 803103615 relief valve is stocked in XCMG depots serving North America, Europe, Asia and Australia.
Each valve is bagged to protect the thread and seat, then boxed in a strong carton that guards against damp and impact.
Fleet buyers can request volume pricing and combined freight, which simplifies planning and lowers landed cost.
Live stock data and responsive supply teams cover urgent requests fast, so machines return to work sooner.
Careful packing keeps threads clean and seats undamaged until fitting, avoiding the problems seen in loose storage.
The XCMG Pressure Relief Valve 803103615 is a key safety component on XCMG excavators, limiting pressure and protecting the hydraulic circuit.
Its accurate thread, correctly lapped seat and OEM spring setting deliver dependable relief in hot, wet and dusty conditions.
By controlling pressure and stopping seepage, this valve cuts downtime, protects pumps and motors and extends circuit life.
Purchase only genuine XCMG parts from authorised dealers to secure real quality, correct fitment and lasting performance.
Specify the 803103615 pressure relief valve for dependable protection and confident, trouble-free servicing.
Work with XCMG, a trusted supplier of engine and hydraulic components for heavy equipment that delivers real value.
OEM 803103615 – XCMG Pressure Relief Valve – the definitive hydraulic relief valve for stable pressure and dependable circuit protection on your excavator. Machined to the drawing, set on the test bench, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.
