803424630 XCMG GR2605 motor grader flange

803424630 XCMG GR2605 motor grader flange

Part Number: 803424630
Compatible Model: XCMG GR2605 Series Grader
Product Positioning: A pipeline connection core specifically designed for the hydraulic system of the GR2605 grader, used for the fixed connection of key components such as hydraulic pumps, valve groups, and pipelines, undertaking the dual functions of sealing and load bearing.

Key Technical Parameters

1. Pressure and Load Capacity
Rated Working Pressure: 25MPa (suitable for high-pressure hydraulic systems)
Maximum Compressive Strength: ≥80MPa
Sealing Pressure Rating: ≤0.01MPa
Leakage Rate (under rated pressure)
Load Capacity: Axial load ≥50kN, Radial load ≥35kN

2. Structure and Dimensions
Structure Type: Plate-type flat-welded flange (with sealing groove design)
Connection Standard: Complies with GB/T 9119-2010 Engineering Machinery Flange Standard
Installation Method: Bolted installation, compatible with original factory mounting holes
Main Dimensions: Nominal diameter DN40, flange outer diameter 150mm, thickness 20mm, number of bolt holes 8 (hole diameter 18mm)

3. Material and Weather Resistance
Body Material: High-quality carbon steel Q235B (forged + Heat treatment), tensile strength ≥470MPa
Sealing surface treatment: chrome plating (plating thickness ≥0.05mm), roughness Ra≤1.6μm
Sealing component compatibility: compatible with fluororubber (FKM) and nitrile rubber (NBR) gaskets, suitable for working environments from -40℃ to 120℃
Corrosion resistance: phosphating + painting double anti-corrosion, no rust after ≥500 hours of salt spray testing

Core functions and application scenarios

1. Main functions
Pipeline connection: Enables secure connection of key components such as hydraulic pump outlet, multi-way valve inlet and outlet, and high-pressure pipelines.
Sealing and leak prevention: Blocks hydraulic oil leakage and ensures stable system pressure through the use of sealing grooves and special gaskets.
Load bearing: Withstands the working pressure of the hydraulic system and the installation stress of the pipeline, preventing deformation and damage to the connection parts.
Positioning and fixing: Precisely positions the installation location of each hydraulic component, ensuring system assembly accuracy.

2. Suitable Working Conditions: Heavy-duty operations such as highway construction, mine stripping, and airport runway construction; Hydraulic systems operating in environments with high-frequency vibration and large pressure fluctuations; Harsh working environments with high dust, mud and water corrosion, and alternating high and low temperatures.

Product Advantages:

Original Factory Compatibility: Fully matches the installation dimensions and interface specifications of the GR2605 hydraulic system, allowing for direct installation without modification.

Solid Connection: Integral forged structure + multi-bolt fastening design, providing outstanding vibration and deformation resistance.

Reliable Sealing: Dedicated sealing groove design ensures extremely low leakage rate and stable hydraulic system pressure.

Durable: High-strength materials + double anti-corrosion treatment, wear-resistant and corrosion-resistant, with a long service life.

Easy Installation: Standardized structural design, precise assembly and positioning, and efficient maintenance and replacement.

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