252101144 bent pipe for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No：252101144
Product Type：Engine Cooling System Bent Pipe
Applicable Equipment：XCMG ZL50G / ZL50GL 5 Ton Wheel Loader
Core Technology：Seamless steel tube integrated cold bending forming
Material：High-quality seamless carbon steel with anti-rust coating
Pipe Inner Diameter：28mm
Pipe Outer Diameter：34mm
Working Pressure：1.6MPa
Burst Pressure：4.8MPa
Proof Test Pressure：2.4MPa
Bending Angle：Custom OEM bend angle
Connection Type：Plain pipe end (match rubber hose connection)
Minimum Bend Radius：145mm
Working Temperature Range：-40℃ ~ +130℃
Weight：2.15kg
Applicable Medium：Ethylene glycol based engine antifreeze / cooling water
Application：Engine cooling circuit rigid pipeline for wheel loader

• Adopt high-quality seamless carbon steel raw material, uniform wall thickness, strong pressure resistance, avoid local thinning and pipe rupture under working pressure.
• Integrated cold bending forming without welding seam on bending section, eliminate welding leakage risk, higher structural reliability than welded bent pipe.
• Surface anti-rust coating treatment, good corrosion resistance against coolant vapor and humid air, effectively slow rust generation.
• Smooth inner tube wall, reduce flow resistance and fluid scouring, extend service life of both bent pipe and matching rubber hose.
• OEM bending angle and interface dimension, perfectly fit original pipeline layout, no on-site bending or cutting required, save maintenance time.
• Excellent rigidity and vibration resistance, resist deformation under long-term cyclic vibration of loader, maintain stable pipeline alignment.
• Strict dimensional tolerance control, match well with connected rubber hose, guarantee assembly sealing performance.

FAQ 

Q1：What signs mean the bent pipe needs replacement?
A1：Pipe wall corrosion and pitting, through-hole leakage, permanent bending deformation, crack on bend section, pipe end deformation leading to poor sealing.

Q2：What should be noted during bent pipe installation?
A2：Do not force bending or knock the pipe body; align pipe end with matching rubber hose; evenly tighten hose clamps; keep the pipe away from sharp metal parts. Do not apply strong impact on the bent section.

Q3：What are common causes of bent pipe damage?
A3：Long-term corrosion from coolant vapor and humid air; stone impact scratching coating; excessive external force causing permanent deformation; vibration fatigue crack at bending position; improper coolant accelerating inner wall corrosion.

Q4：Can leaking bent pipe be repaired and reused?
A4：Not recommended. If the pipe wall has corrosion pits or cracks, even temporary welding repair, it will fail quickly under vibration and temperature change. Replace new bent pipe directly.

Q5：How to inspect bent pipe during daily maintenance?
A5：Check pipe surface for rust, pits and leakage before heavy-load operation. Focus inspection on bending section and both pipe ends, these areas are most prone to corrosion and cracking.

Q6：What failures will a failed bent pipe cause?
A6：Coolant leakage reduces cooling efficiency, engine temperature rises rapidly. Severe perforation will cause fast loss of antifreeze, resulting in engine overheating and major damage.