252101080 d-tube for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：252101080
Product Name：D-type Hose
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Structure：Inner rubber layer + reinforcing layer + outer rubber layer
Inner rubber material：Oil-resistant synthetic rubber
Outer rubber material：Wear-resistant and weather-proof rubber
Reinforcement form：High-strength braided reinforcement
Transmission medium：Anti-wear hydraulic oil
Rated working pressure：OEM standard pressure
Burst pressure：≥3 times rated working pressure
Minimum bending radius：Comply with OEM specification
Surface appearance：Black rubber surface
Working temperature：-20℃ ~ 80℃
Inspection Items：Burst pressure test, bending fatigue test, oil resistance test, dimension inspection

Application Scenarios

It is used for flexible connection of each branch hydraulic pipeline of wheel loaders, suitable for earthwork, quarry mining, sand yard loading and other high-vibration heavy-duty working conditions.

• Produced in accordance with OEM drawings, length, inner diameter and interface size fully match original assembly, plug and play without modification.
• Multi-layer composite structure, stable pressure bearing capacity, resist frequent pressure impact of hydraulic system.
• Good flexibility, reasonable bending radius, convenient on-site piping, not easy to produce dead bend.
• Outer rubber with excellent wear resistance and aging resistance, adapt to muddy and dusty construction environment.
• Good compatibility with hydraulic oil, the inner rubber is not easy to deteriorate, ensuring long-term sealing performance.
• It can absorb vibration and compensate relative displacement between components, reduce pipeline fatigue damage.
• Strict pressure and fatigue sampling test before delivery, stable quality and long service life under normal use.

FAQ 

Q1: Can this D-type hose be replaced with ordinary hoses of other part numbers?
A1: No. Different part numbers differ in length, pressure grade and inner diameter. Please use the hose with the same part number to guarantee matching and safe operation.

Q2: What are the common reasons for hose oil leakage?
A2: Rubber aging, outer rubber abrasion, inner layer scratched by impurities, over-bending, excessive system pressure and loose hose clamps are common causes of leakage that need step-by-step troubleshooting.

Q3: What should be paid attention to during installation?
A3: Avoid twisting and sharp dead bends; reserve enough slack for vibration buffer; keep away from high-temperature components and sharp metal edges that may cut the hose.

Q4: Can a leaking rubber hose be repaired on site?
A4: There is no reliable repair method for damaged hydraulic hoses. It must be replaced to prevent sudden burst during high-load operation.

Q5: How to judge whether the hose needs to be replaced?
A5: Replace it when the surface has cracks, blisters, oil seepage, hardening, serious wear or local bulging deformation, do not continue to run the machine reluctantly.

Q6: What risks will be caused if the hose is installed too tight without margin?
A6: Without slack allowance, the hose will be pulled repeatedly under vibration, accelerating fatigue and leading to early rupture and unexpected shutdown.