252100641 oil suction steel pipe for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：252100641
Product Name：Oil Suction Steel Pipe
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：High-quality seamless steel pipe
Surface Treatment：Phosphating / anti-rust paint
Working Medium：L-HM46 anti-wear hydraulic oil
Working Temperature：-20℃ ~ 80℃
Connection Form：Flange connection / welded connection
Inspection Items：Dimensional inspection, air tightness test, inner wall cleanliness inspection, appearance inspection

Applicable Scenarios

It is applied to the oil suction pipeline between hydraulic tank and main hydraulic pump of 5-ton wheel loader, suitable for earthwork, quarry, sand yard, port bulk loading and other heavy-load construction conditions.

• Manufactured in strict accordance with OEM drawing standards, bending shape and mounting hole position match original parts, direct installation without modification.
• Seamless steel pipe base, uniform wall thickness, high structural rigidity, resistant to deformation under negative pressure of oil suction.
• Smooth inner wall, low flow resistance, effectively reduce pump suction vacuum degree and inhibit cavitation damage of hydraulic pump.
• Fine anti-rust treatment, slow rusting speed, adapt to humid and dusty outdoor construction environment.
• Stable welding performance, good fit with supporting flanges and sealing faces, effectively avoid air leakage at joints.
• Strong anti-vibration performance, not easy to produce fatigue fracture under long-term continuous vibration of the loader.
• Batch size consistency is good, easy for spare parts stocking and fast field replacement.

FAQ 

Q: Can this suction steel pipe be bent again on site to adjust the installation position?
A: It is not recommended. Secondary bending will cause uneven wall thickness and stress concentration, which may crack under negative pressure and vibration.

Q: What will happen if the suction pipeline sucks air?
A: It will cause pump cavitation, abnormal noise, unstable hydraulic action, and accelerate the wear of internal components of the hydraulic pump.

Q: What inspection should be done before installing the oil suction steel pipe?
A: Check the pipe body for cracks, pits and rust spots, confirm that the inner cavity is clean without iron filings and sundries, and check the flatness of the flange sealing surface.

Q: What causes oil suction pipe joint to intake air?
A: Uneven flange surface, aging and damaged sealing ring, uneven bolt tightening torque, and deformation of steel pipe leading to misalignment will cause air entering.

Q: Can the steel pipe with slight rust continue to be used?
A: Slight surface floating rust can be polished and re-antirust treated; if pitting corrosion appears on the pipe wall, it must be replaced.

Q: What is the difference between oil suction steel pipe and high pressure steel pipe?
A: The suction pipe mainly bears negative pressure, focusing on air tightness and low flow resistance; high-pressure steel pipe bears positive high pressure and requires higher burst resistance.