803420534 check valve XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Check Valve (Part No. 803420534) – A Guardian of Hydraulic System Safety!

Core Technologies:

1. Millisecond-level Response Technology: Patented cone valve structure design, closing time <15ms, 3 times faster than the industry standard.

2. Zero-Leakage Sealing System: Utilizes tungsten carbide alloy valve seat, sealing life exceeding 200,000 cycles.

3. Intelligent Pressure Adaptation: Automatically adjusts spring preload to adapt to pressure fluctuations of 35-50MPa.

4. Extreme Condition Verification: Passed 1000 hours of continuous impact testing (ISO 6403 standard).

Technical Parameters:

• Nominal Pressure: 42MPa

• Opening Pressure: 0.05MPa

• Maximum Flow Rate: 180L/min

• Valve Body Material: 42CrMo Forged Steel

• Applicable Oil Temperature: -40℃～+120℃

Industry Pain Point Solutions:

✔ Completely solves pipeline vibration caused by hydraulic shock

✔ Prevents the risk of accidental falling of actuators

✔ Eliminates pump cavitation caused by oil backflow

Application Scenarios:

▸ Boom Cylinder Anti-sinking Circuit

▸ Main Pump Outlet Backflow Protection

▸ Multi-way Valve Group Pilot Circuit

Risk Warning:

⚠ Using inferior check valves may result in:

• Energy loss of ¥80-120 per hour
• Hydraulic shock damage cost of ¥15,000+
• Safety hazards due to unexpected equipment operation

Maintenance Recommendations:

“It is recommended to check valve core wear every 5000 hours. Regular replacement can prevent 90% of hydraulic shock failures.”

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318307857 steel pipe assembly

1 318307856 1 WELDED STEEL PIPE
2 803103321 3 CONNECTOR
3 318307853 2 PIPE CLAMP ASSEMBLY
4 803106345 1 CONNECTOR
5 803105357 1 CONNECTOR
6 803420534 1 CHECK VALVE
7 803450658 1 REDUCER UNION

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