The genuine XCMG 800752773 Ball Valve is a high‑quality shut‑off valve for hydraulic and pneumatic circuits on motor graders.
This OEM 800752773 ball valve features a chrome‑plated brass ball, PTFE seats, and a stainless steel stem, ensuring leak‑free operation.
Designed for working pressures up to 4.5 MPa (650 psi) in hydraulic systems and 1.6 MPa (230 psi) for pneumatic applications.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this ball valve is used in auxiliary hydraulic lines, drain circuits, and compressed air systems.
A worn or leaking ball valve can cause loss of hydraulic function, uncontrolled actuator movement, or air system pressure drop. Replacing a faulty valve with genuine XCMG 800752773 restores positive shut‑off and system integrity.
The quarter‑turn lever provides visual confirmation of open/closed status, and the non‑stick ball surface prevents seizing even after long periods of disuse.
This valve is also used in fuel transfer lines, hydraulic tank drain ports, and coolant bypass circuits on XCMG graders.
| Parameter | Specification |
|---|---|
| OEM Number | 800752773 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | 2‑Way Ball Valve / Manual Shut‑Off Valve |
| Port Size | 3/8 inch NPT (female) or M18×1.5 metric – check OE |
| Body Material | Forged brass (CW617N) – nickel‑plated |
| Ball Material | Chrome‑plated brass / stainless steel (AISI 304) |
| Seat Material | PTFE (virgin grade) |
| Stem Seals | Nitrile rubber (NBR) O‑rings + adjustable gland packing |
| Max Working Pressure (Hydraulic) | 4.5 MPa (650 psi) |
| Max Working Pressure (Pneumatic) | 1.6 MPa (230 psi) |
| Operating Temperature Range | -20°C to +120°C (-4°F to +248°F) |
| Flow Coefficient (Cv) | 6.5 (full open) |
| Handle Type | Zinc‑alloy lever with rubber grip, 90° rotation stop |
| Mounting Holes | Integrated bracket with 2x M6 threaded holes |
| Standards | ISO 5211, EN 331, PED 2014/68/EU |
| Fluid Compatibility | Mineral oils, synthetic hydraulic fluids, compressed air, water‑glycol, diesel fuel |
| Test Pressure (Proof) | 6.8 MPa (1.5× working) for 2 minutes |
| Compatible Models | XCMG GR135–GR350 motor graders |
| Superseded Part Numbers | 800752755, 800752768, 800752771 |
The 800752773 ball valve is used as an isolation valve in auxiliary hydraulic circuits, allowing technicians to lock out sections of the system for safe maintenance.
In pneumatic systems, it isolates the air supply to cab suspension, horn, or brake release valve, preventing pressure loss when servicing components.
A leaking ball valve can cause a hydraulic cylinder to drift or a pneumatic accumulator to drain, leading to unexpected machine movement.
Replacing a worn valve with genuine XCMG 800752773 restores positive shut‑off, eliminates dripping, and ensures safe isolation during repairs.
Each 800752773 ball valve is forged from CW617N brass, providing high strength and excellent corrosion resistance. The body is nickel‑plated for additional protection.
The ball is precision‑machined from chrome‑plated brass, then diamond‑lapped to achieve a mirror finish that reduces operating torque and ensures tight sealing.
PTFE seats are virgin grade with low friction and wide temperature range. The stem packing utilizes dual NBR O‑rings with an adjustable gland nut.
XCMG tests every valve at 1.5× working pressure with nitrogen, checking for leakage using a helium mass spectrometer. Zero detectable leakage is required.
To replace a leaking ball valve, depressurize the hydraulic or pneumatic circuit completely. Use a container to catch residual fluid.
Unscrew the old valve using two wrenches (one on each side to avoid twisting the pipe). Clean the pipe threads with a wire brush.
Apply PTFE tape (3‑4 wraps) or liquid thread sealant to the male threads. Screw in the new 800752773 valve by hand, then tighten with wrench to 30‑40 Nm.
Re‑pressurize the system slowly and check for leaks. Operate the handle through full travel to verify smooth rotation.
Always replace the valve if the handle feels stiff or leaks persists. Keep a genuine spare for quick exchange.
Visible leakage from the body or stem, inability to fully stop flow when closed, handle is loose or requires excessive force, and external corrosion.
Also, if the valve does not rotate 90° smoothly, or if it leaks when open. Replace immediately to avoid system contamination or pressure drop.
Inspect ball valves during every hydraulic system service (every 500 hours). Check for external leaks, handle play, and smooth operation.
XCMG recommends replacing the 800752773 valve every 4,000‑5,000 hours or at the first sign of leakage. In contaminated environments, shorten to 2,500 hours.
Operate the valve through its full travel once per month to exercise the seals and prevent seizure. Lubricate the stem below the handle with light oil annually.
When replacing the valve, also inspect the mating pipe threads and replace any damaged nipples or adapters.
Genuine XCMG 800752773 ball valves carry a 12‑month warranty. Regional warehouses: Houston, Rotterdam, Dubai, Shanghai.
Standard air freight delivers within 3‑7 business days worldwide. Emergency 24‑48 hour shipping available for critical system repairs.
Bulk orders (10+ valves) receive volume discounts and sea freight options for fleet maintenance.
Aftermarket valves often use brass with high zinc content (dezincification risk), low‑grade seats, and poor stem seals. Genuine XCMG 800752773 ensures dezincification‑resistant brass and PTFE seats for long‑term sealing.
Don’t risk hydraulic oil leakage or pneumatic pressure loss – a faulty ball valve can cause unplanned downtime. Keep a genuine spare in your parts inventory.
Order the genuine XCMG 800752773 Ball Valve today and maintain leak‑free, reliable shut‑off for your grader’s auxiliary systems.
Upgrade your motor grader’s fluid control reliability with XCMG genuine valves – forged brass, PTFE seats, and 100% leak‑tested.
