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In the hydraulic and cooling fluid piping systems of the XCMG XE2000 excavator, the connecting flange is a core component for achieving precise connection between pipelines and equipment, and between pipelines themselves. Its sealing performance and pressure resistance directly determine the stability of fluid transmission. Once the flange connection fails, it can easily lead to high-pressure leakage, sudden drop in system pressure, and other malfunctions, seriously affecting operational efficiency. This article focuses on the XCMG XE2000 original factory connecting flange (part number 800168973) – a high-pressure connecting flange for excavators specifically designed for this model, which uses precision craftsmanship and reliable performance to build a solid “safety line” for pipeline connections.
This connecting flange (part number 800168973) is custom-made strictly according to the interface parameters, installation spacing, and flange standards of the XCMG XE2000 excavator piping system. The flange outer diameter, number and spacing of bolt holes, and sealing surface flatness perfectly match the original factory design. No additional processing or adjustment of the installation position is required; it can directly connect to the piping interfaces of core components such as hydraulic pumps, cylinders, and radiators. The bolt holes are precisely aligned, and the sealing surfaces fit tightly—avoiding installation jams caused by dimensional deviations and eliminating the risk of leakage due to gaps. As a dedicated piping flange for the XE2000, it forms a highly synergistic connection with the original factory piping and seals, ensuring the stability of the piping connection from the source.
Made from high-quality carbon structural steel or stainless steel through forging, and processed with heat treatment and surface anti-corrosion coating, the flange possesses excellent high-pressure corrosion resistance: under high-pressure conditions exceeding 30MPa in the XE2000 excavator hydraulic system, the flange body shows no deformation or cracks and can withstand fluid impact for extended periods; facing the humid environment of construction sites and the corrosive effects of hydraulic oil and coolant, the surface coating effectively blocks corrosive media, preventing the flange from rusting or deteriorating. Compared to ordinary cast flanges, its tensile strength is increased by more than 40%, and its service life is extended by 2 times, easily handling harsh working conditions and high-frequency vibrations in heavy-duty operations.
The flange sealing surface adopts a “convex face + sealing groove” structure (as per original factory configuration). When used with a dedicated sealing gasket, it forms a double sealing effect: the sealing groove precisely positions the gasket, preventing gasket displacement; the convex face fits tightly with the gasket, completely blocking fluid leakage channels under the force of bolt tightening. Even under the continuous vibration generated by excavator operation, the sealing structure remains stable, preventing loosening of the sealing surface due to vibration. This leak-proof flange structure effectively prevents hydraulic oil and coolant leakage, ensures stable pipeline system pressure, guarantees precise hydraulic action and efficient cooling, and reduces downtime maintenance costs caused by leaks.
Dimensional accuracy inspection: Use a coordinate measuring machine to calibrate the flange outer diameter, bolt hole positions, and sealing surface flatness, with the error controlled within ±0.03mm;
Pressure test: Simulate high-pressure conditions in the pipeline and conduct water or oil pressure tests to ensure that the flange is free from leakage and deformation;
Material testing: The steel composition is verified through spectral analysis to ensure that the material meets the standards and avoids insufficient strength caused by inferior materials;
Corrosion resistance testing: Salt spray test and medium immersion test are conducted to verify the corrosion resistance of the surface coating and ensure that it can adapt to harsh outdoor environments.
Only products that pass all tests will be marked with part number 800168973 before leaving the factory, ensuring that every product received by the user is a reliable original part.
Key function: Supporting the efficient operation of the pipeline system
Hydraulic system: Pipelines connecting the hydraulic pump to the cylinders and valve groups transmit high-pressure oil to ensure strong power output from the boom and bucket;
Cooling system: Pipes connecting the radiator to the engine and hydraulic oil cooler, delivering coolant and maintaining the normal operating temperature of the system;
Structural support: Serving as a “bridge” for pipeline connections, it stabilizes the pipeline route and reduces displacement and wear caused by vibration.
As a core connector in engineering machinery pipelines, the XCMG XE2000 excavator connecting flange (part number 800168973) is an essential accessory for maintaining the quality of original factory pipelines and ensuring efficient excavator operation. Choosing the original factory flange means choosing leak-free connection safety and long-term stable operation.
800169252 rear cooler XCMG XE2000 excavator spare parts
22 800167212 SEALRETAINER
23 800161836 O-RING6
24 800161657 COUPLINGGASKET
25 800167120 PIPEPLUG
26 800167007 PIPEPLUG
27 800158237 FLANGEHOSE
28 800169184 AIRCROSSCONNECTIONPIPE
29 800169133 AIRCROSSCONNECTIONPIPE
30 800169154 SUPPORTCONNECTION
31 800169060 DRAINVALVE
32 800169014 AFTERCOOLERCORE
33 800169105 AFTERCOOLERCOVER
34 800158238 TTYPECLAMP
35 800158239 FLANGEHOSE
36 800158240 HOSECLAMP
37 800158241 HOSECLAMP
38 800169139 AFTERCOOLERCOVER
39 800169020 AFTERCOOLERCOVER GASKET
40 800158242 TTYPECLAMP
41 800168973 CONNECTINGFLANGE
42 800169188 AIRBALANCEPIPE
XCMG XE2000 connecting flange
800168973 Genuine parts
Excavator high-pressure connection flange
XE2000 Dedicated Pipeline Flange
Leak-proof flange structure
Core connectors for engineering machinery pipelines