252101148 waterpipe for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No：252101148
Product Type：Engine Cooling Water Hose
Applicable Equipment：XCMG ZL50G / ZL50GL 5 Ton Wheel Loader
Core Technology：Fiber braid reinforced multi-layer EPDM composite structure
Material：EPDM coolant-resistant inner rubber, polyester fiber braid, heat-resistant EPDM outer rubber
Hose Inner Diameter：32mm
Hose Outer Diameter：44mm
Working Pressure：1.0MPa
Burst Pressure：3.0MPa
Proof Test Pressure：1.5MPa
Connection Type：Molded elbow end (molded shape matches radiator interface)
Minimum Bend Radius：140mm
Working Temperature Range：-40℃ ~ +120℃
Weight：1.45kg
Applicable Medium：Ethylene glycol based engine antifreeze / cooling water
Application：Engine cooling system coolant circulation pipeline for wheel loader

• Polyester fiber braid reinforcement layer, stable structural strength, effectively restrict hose expansion under water pressure, prevent bulging deformation.
• Heat-resistant thickened outer rubber cover, outstanding high-temperature aging resistance, anti-ozone performance, greatly extend service life inside hot engine compartment.
• Integral molded elbow design, the pipe end shape perfectly fits radiator and engine connector, good sealing performance after clamp installation.
• OEM-level dimension and molded contour, fully match original cooling pipeline layout, simple installation and replacement without modifying pipeline layout.
• Good flexibility, can compensate small displacement caused by engine vibration, reduce assembly stress and avoid cracking at bending section.
• Excellent vibration fatigue resistance, adapt to continuous engine vibration under heavy load, reduce the risk of crack and leakage at joints.
• Strict batch hydraulic pressure inspection before delivery, every hose passed leak test, effectively avoid sudden coolant leakage on construction site.

FAQ 

Q1：What signs mean the water hose needs replacement?
A1：Surface cracking, blistering, coolant seepage, outer rubber hardening and chalking, hose bulging under working pressure, rubber peeling, crack leakage at molded elbow.

Q2：What should be noted during water hose installation?
A2：Avoid sharp bending and twisting; keep away from sharp metal edges; align molded port with connector, evenly tighten hose clamps; reserve small allowance for engine vibration displacement. Do not forcibly stretch the hose during assembly.

Q3：What are common causes of water hose damage?
A3：Long-term high-temperature aging inside engine compartment; coolant deterioration causing inner rubber corrosion; excessive bending installation; vibration fatigue cracking; gravel abrasion on outer rubber; improper coolant additive.

Q4：Can leaking water hose be repaired and reused?
A4：Not recommended. Once the rubber or fiber reinforcement layer is damaged, the structural strength will drop greatly. Temporary repair may leak again under high temperature and vibration. Replace new water hose directly.

Q5：How to inspect water hose during daily maintenance?
A5：Check hose surface for cracks, hardening, blisters and coolant seepage before heavy load work. Inspect the tightness of hose clamps. Focus inspection on molded elbow and both ends, these areas are most prone to aging and leakage.

Q6：What failures will a failed water hose cause?
A6：Coolant leakage leads to insufficient cooling capacity, engine temperature rises rapidly. Severe rupture will cause rapid loss of antifreeze, resulting in engine overheating, cylinder pulling and major engine damage.