252100655 low pressure oil delivery hose for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：252100655
Product Name：Low Pressure Oil Delivery Hose
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：Oil-resistant inner rubber, textile fiber reinforcement layer, weather-resistant outer rubber, steel crimped joint
Rated Working Pressure：Low pressure range for oil return and oil suction
Burst pressure：Far higher than the working pressure of low-pressure circuit
Working Medium：Hydraulic return oil, diesel fuel
Working Temperature：-20℃ ~ 80℃
Connection form：Steel crimped joint
Inspection Items：Dimensional inspection, sealing test, bending test, aging resistance test, pull-off test

Applicable Scenarios

It is used for low-pressure oil suction and oil return pipelines of hydraulic system and fuel supply system on 5-ton wheel loaders, suitable for earthwork, sand yard, port loading and unloading and other construction scenarios.

• Textile fiber reinforcement, light weight and good flexibility, suitable for positions with small relative movement between components.
• Excellent oil resistance and aging resistance, outer rubber resists ultraviolet radiation and ozone erosion, long service life in outdoor environment.
• Good bending performance, small minimum bending radius, convenient layout in narrow installation space, not easy to produce bending dead fold.
• Stable crimping process, the joint and hose are tightly combined, not easy to loosen and leak oil under long-term slight vibration.
• Good damping effect, can absorb low-frequency vibration of low-pressure oil circuit, reduce the transmission of vibration to adjacent hard pipes.
• Strict factory sampling inspection, stable batch quality, low replacement cost and convenient spare parts management.

FAQ 

Q: Can this low-pressure hose be used instead of high-pressure hydraulic hose?
A: No. It adopts fiber reinforcement structure with low pressure bearing capacity. Using it on high-pressure circuit will lead to sudden burst and oil leakage.

Q: What are the common failure forms of low-pressure oil delivery hose?
A: Common faults include outer rubber aging cracking, fiber layer delamination, leakage at crimping joint, and internal blockage caused by rubber peeling.

Q: What should be checked before installation?
A: Check whether the hose surface has cracks, bubbles and scratches; avoid sharp stretching, twisting and excessive bending during installation.

Q: Can it continue to be used if there is slight oil seepage at the joint?
A: Not recommended. Slight seepage indicates that the sealing structure has failed, and the leakage will gradually worsen with vibration. Replace the assembly directly.

Q: What is the difference between low-pressure fiber hose and steel wire high-pressure hose?
A: The fiber reinforced hose is for low pressure oil return and oil suction, flexible; steel wire hose is used for high-pressure power oil circuit with strong pressure resistance.

Q: How to carry out daily maintenance of low-pressure oil hose?
A: Regularly check aging and oil seepage, avoid long-term extrusion and friction with sharp parts, and keep away from high-temperature exhaust parts as far as possible.