803166765 XCMG GR2605 motor grader flange

803166765 XCMG GR2605 motor grader flange

Core Product Advantages

Specifically designed for the XCMG GR2605 motor grader, this product perfectly matches the model’s 194kW rated power output and 24.5MPa high-pressure hydraulic system, precisely adapting to harsh operating environments such as mining, open-pit mining, and large-scale infrastructure construction, characterized by dust, intense vibration, and flammable/explosive properties. Utilizing a 316L stainless steel one-piece forging process, the flange thickness is ≥22mm, and the sealing surface features a raised face (RF) design. Combined with flexible graphite and metal spiral wound gaskets, the sealing pressure reaches 1.8 times the working pressure, with a leakage rate ≤1×10^-6Pa・m³/s (compliant with GB/T 13447 standard), completely eliminating high-pressure hydraulic media leakage. The flange surface undergoes passivation and anti-corrosion coating double treatment, with a salt spray corrosion resistance test of over 2000 hours. It features a built-in explosion-proof pressure relief groove structure that meets the Ex dIMb explosion-proof standard, effectively dispersing hydraulic impact stress, avoiding the risk of sparks caused by metal friction, and eliminating the hidden dangers of gas and coal dust explosions. Its explosion-proof safety performance is 50% higher than that of ordinary mining flanges. Adopting an integral forged, seamless structure, it boasts a tensile strength ≥520MPa and a compressive strength ≥900MPa, capable of withstanding high-frequency vibration (10-2000Hz) and impact loads, with a deformation ≤0.1mm (under rated pressure). This represents a 60% improvement in stability compared to spliced ​​flange structures. The interface specifications strictly match the original installation dimensions of XCMG GR2605, adapting to DN25 diameter hydraulic pipelines. It supports welded fixed installation, and the bolt hole layout perfectly matches the pre-reserved installation position on the main unit, allowing for direct replacement without additional modifications. The installation torque is 25-30N・m, facilitating maintenance and significantly reducing equipment downtime losses. It fully meets the high reliability and mining safety standards of XCMG hydraulic components.

Key Technical Parameters

Compatible Model: XCMG GR2605 Mining Grader
Product Model: 803166765
Standards: GB/T 9119-2021 Standard for Plate-Type Welded Flanges + MT/T 1102-2009 Specification for Mining Hydraulic Flanges + GB/T 3836.1-2021 General Requirements for Explosive Atmospheres + XCMG GR2605 Original Hydraulic System Technical Specifications
Flange Type: Welded Flameproof Hydraulic Flange
Rated Parameters: Rated working pressure 40MPa (compatible with main unit maximum working pressure 24.5MPa, sufficient safety redundancy), compatible maximum flow rate 200L/min
Explosion-proof Rating: Ex dIMb (compliant with ATEX 2014/34/EU) (Instructions to meet the highest safety requirements for high-gas mines)
Protection Rating: IP67 (Completely dustproof + immersion in 1m water for 30 minutes without leakage)
Structural Features: Raised face (RF) seal + integral forged seamless structure, built-in explosion-proof pressure relief groove
Material Specifications: Flange body 316L stainless steel (integral forging, impact strength ≥40J), sealing gasket flexible graphite + metal spiral wound (temperature resistance -40℃~450℃)
Dimensions: Flange outer diameter 110mm, thickness 22mm, number of bolt holes 4, hole diameter 18mm, bolt specifications… M16×80 (High-strength carbon steel bolts)
Applicable diameter: DN25 (suitable for the inner diameter requirements of the main hydraulic pipeline)
Operating temperature: -40℃~130℃ (no decrease in sealing performance at high temperatures, no brittle deformation at low temperatures)
Applicable media: Petroleum-based hydraulic oil, mineral oil, water-glycol, phosphate ester flame-retardant hydraulic oil
Connection method: Welded fixing (pipeline to flange welding, bolt tightening for sealing), installation torque 25-30 N・m
Safety characteristics: Flame-retardant and anti-static (surface resistance ≤1×10^8Ω), overall pressure resistance 60MPa without leakage, vibration resistance grade GB/T 2423.10-2019
Service life: ≥5000 hours of continuous trouble-free operation, mean time between failures (MTBF) ≥100000 hours

Application scenarios

Suitable for XCMG GR2605 The hydraulic pipeline connection of graders is particularly suitable for the harsh mining environment characterized by high pressure, high-frequency vibration, and flammable and explosive conditions, making them ideal for applications such as mining, open-pit mining, highway construction, and large-scale infrastructure projects. As the “high-pressure connection hub” of the hydraulic system, its welded seal and explosion-proof design ensure stable application in key components such as the main hydraulic circuit, blade drive system pipeline, brake hydraulic circuit, accumulator connection pipeline, and hydraulic pump outlet. This effectively achieves the sealed transmission of high-pressure hydraulic media, preventing leakage and pressure loss due to loose pipeline connections or seal failure. Simultaneously, its high-strength forged structure resists vibration and impact, reduces pipeline stress concentration, and significantly improves the connection stability and operational safety of the entire machine’s hydraulic system. It is an original factory-grade precision-fit part for hydraulic pipeline repair and replacement of the XCMG GR2605 grader, fully meeting the high safety, high reliability, and strong vibration resistance requirements of mining operations.

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