269900181 split flange for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：269900181
Product Name：Split Flange
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：Alloy steel forging
Rated working pressure：OEM standard working pressure
Supporting parts：Seal ring, hexagon bolt
Medium：L-HM46 anti-wear hydraulic oil
Working temperature：-20℃ ~ 80℃, suitable for all-season outdoor construction
Connection form：Split bolt locking, matched with steel pipe and high pressure hose
Inspection Items：Pressure test, leakage test, flatness inspection, dimension inspection, surface flaw inspection

Application Scenarios

It is used for high-pressure pipeline connection of 5-ton wheel loader tilt cylinder, boom cylinder and multi-way valve oil circuits, suitable for earthwork, quarry mining, sand yard and bulk cargo loading high-intensity working conditions.

• Forged alloy steel body, high structural rigidity, strong resistance to deformation, not easy to warp under long-term vibration and cyclic pressure impact, stable sealing surface fit.
• Precision machined sealing surface, uniform compression on the sealing ring, good pressure holding performance, greatly reducing the risk of oil leakage at the connection point under frequent shock load.
• Standardized interface specification, compatible with original matching sealing rings, bolts, steel pipes and high-pressure hose assemblies, convenient for spare parts stocking and rapid on-site replacement.
• Surface anti-rust and anti-corrosion treatment, resist mud splash and atmospheric rust, adapt to dusty, humid outdoor construction sites.
• Strict factory pressure and sealing inspection, each flange is inspected for flatness and assembly clearance, consistent batch quality, long service life under repeated heavy-load cycles.

FAQ 

Q1: Can this split flange work continuously above its rated working pressure?
A1: No. Long-time overpressure will cause permanent deformation of flange body, seal extrusion failure, serious oil leakage, and even split fracture of the flange, bringing safety risks to the hydraulic system.

Q2: What are the common causes of oil leakage of split flange connection?
A2: It may be insufficient bolt tightening torque, aging and damage of sealing ring, scratch on sealing surface, misalignment of pipeline, or flange deformation caused by impact.

Q3: What should be noticed before installation?
A3: Clean the sealing surface and oil port to remove iron scraps and dirt; check the flange and seal ring for damage; tighten the bolts alternately and evenly to ensure uniform pressure.

Q4: Can a slightly deformed flange be corrected and reused?
A4: It is not recommended. Internal metal stress has changed after deformation. Even after correction, the sealing surface cannot keep parallel stably, and leakage will easily occur under pressure. Replace the whole flange assembly.

Q5: What are the requirements for the matched hydraulic oil?
A5: It is recommended to use L-HM46 anti-wear hydraulic oil. Dirty, deteriorated or water-emulsified oil contains hard particles, which will scratch the sealing surface and accelerate the wear of sealing parts.

Q6: What will happen if the fastening bolts are tightened unevenly?
A6: Uneven bolt force will lead to inclined sealing surface, partial over-compression of the seal ring, early failure of the seal and oil leakage.