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XCMG Throttle Valve 803278545 – Hydraulic Flow Control

XCMG Throttle Valve 803278545 – Precision Flow Control

Throttle Valve 803278545
Throttle Valve
Дроссельный клапан 803278545
Дроссельный клапан
Válvula de estrangulamiento 803278545
Válvula de estrangulamiento

803278545 is the genuine OEM throttle valve engineered for XCMG motor graders, providing precise flow control for hydraulic circuits. This precision component enables smooth speed regulation and load management.

The 803278545 throttle valve features a precision-ground metering spool and fine adjustment capability, ensuring accurate flow control and stable actuator speed. Its robust construction withstands demanding operating conditions.

Whether for new installations or replacements, this valve guarantees consistent performance. With the 803278545, you optimize your grader’s hydraulic functionality.

Technical Specifications

ParameterSpecification
OEM Number803278545
Part NameHydraulic Throttle Valve
Brand / CompatibilityXCMG – fits GR, G, and R series graders
MaterialHardened steel body, zinc-plated, stainless steel spool
Max Operating Pressure350 bar (5075 psi)
Flow Range0 – 150 L/min (0 – 39.6 GPM) adjustable
Pressure Drop (full open)< 3 bar at rated flow
Adjustment TypeManual knob with locking nut
Internal Leakage< 0.2 L/min at rated pressure
Operating Temperature-30°C to +120°C
CertificationISO 9001, CE, XCMG quality standard

Engineering Excellence

The XCMG Throttle Valve 803278545 is a precision-engineered component that enables variable flow control in hydraulic systems. It provides smooth speed regulation for actuators.

Each valve features a precision-ground metering spool that ensures accurate flow control. The spool’s fine adjustment capability allows for precise speed matching to work requirements.

The valve body is manufactured from high-strength steel, heat-treated to provide exceptional durability and resistance to wear. This ensures long-term reliability in demanding applications.

Furthermore, the 803278545 throttle valve incorporates advanced sealing technology that prevents external leakage and maintains system integrity even under extreme operating conditions.

From a manufacturing standpoint, each valve undergoes rigorous testing, including flow performance and pressure drop tests, to guarantee conformance to XCMG’s strict quality standards.

For system designers, the 803278545 offers flexibility and can be integrated into various hydraulic circuits. Its compact design simplifies installation in space-constrained equipment.

Durability & Field Performance

In demanding construction environments, the 803278545 throttle valve has demonstrated exceptional durability. The hardened spool and seat resist wear from contamination and high-velocity fluid flow.

Unlike standard valves, the genuine XCMG throttle valve features a low-friction design that reduces hysteresis and ensures consistent response even after thousands of operating cycles.

The valve’s balanced design minimizes the effects of pressure fluctuations, providing stable control of actuator speed. This precision is essential for fine grading operations.

Moreover, the 803278545 is designed to operate effectively in a wide temperature range, maintaining its performance characteristics from cold starts to high-temperature working conditions.

When used with XCMG-recommended hydraulic fluids, this valve achieves a long service life, reducing maintenance frequency and associated downtime for fleet operators.

With a proven track record in thousands of machines, the 803278545 throttle valve contributes significantly to the reliability, productivity, and fuel efficiency of XCMG graders.

Installation & Maintenance

Installing the 803278545 throttle valve requires careful preparation. First, relieve system pressure and clean the mounting area to prevent contamination from entering the hydraulic system.

Remove the old valve and inspect the manifold for any debris or damage. Clean the sealing surfaces and ensure the O-ring grooves are free of contamination before installation.

Lubricate the O-rings with clean hydraulic oil and carefully insert the 803278545 valve into its cavity. Tighten the retaining bolts to the specified torque using a calibrated wrench.

For maintenance, periodically check the valve for signs of external leakage or abnormal operation. Monitor system performance to detect any degradation in control accuracy.

The 803278545 is designed for easy servicing. If replacement is necessary, always use a genuine XCMG valve to ensure proper fit and performance. Never attempt to disassemble or modify the valve.

Finally, document all maintenance activities, including installation torque and system performance checks, to support a proactive maintenance program and ensure long-term reliability.

Global Availability & Support

The 803278545 throttle valve is readily available through XCMG’s extensive global distribution network, ensuring fast delivery to support your maintenance and operational needs.

Each valve is individually packaged to protect it during transport. Bulk packaging options are available for large-scale maintenance programs and equipment manufacturers.

Our technical support team can provide application guidance, installation drawings, and hydraulic schematics to help you integrate the 803278545 into your system efficiently.

The valve is backed by a comprehensive warranty against manufacturing defects, reflecting our commitment to quality and customer satisfaction. We stand behind every component we supply.

We also offer verification services to confirm that 803278545 is the correct valve for your specific machine and application, eliminating ordering errors and ensuring you receive the right part.

Choose the genuine XCMG Throttle Valve 803278545 for precise flow control, enhanced machine performance, and operational peace of mind. It is the professional’s choice for advanced hydraulic systems.

The throttle valve’s ability to provide smooth, proportional flow control directly contributes to improved grading accuracy, reduced operator fatigue, and lower fuel consumption. This makes the 803278545 a valuable investment for any grader fleet.

By consistently using genuine XCMG components like the 803278545, owners can maintain the performance and resale value of their equipment, ensuring it remains competitive and productive throughout its operational life.

OEM quality 24h dispatch Global shipping

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