Komatsu PC220 Excavator Hydraulic Cartridge Type Pressure Unloading Main Service Valve

Model: Komatsu PC200-6C01 series -111038
Place of Origin: Zhejiang,China (Mainland)
Power: Hydraulic
Standard or Nonstandard: Standard
Pressure: High Pressure
Structure: Shutoff
Material: Others
Temperature of Media: High Temperature
Media: Oil
Brand Name: Egmec
Product:: Pressure unloading main service valves for Komatsu PC220 excavator with cartridge type
Operation pressure:: 350bar /5075PSI
Raw materials:: Stainless steel or hardened 45 carbon steel materials
Application machine:: Komatsu PC220 excavator machine series
Driven Type:: Piston type, pressure unloading
Assembly type:: Standard cavity for Komatsu PC220 excavator hydraulic power system
Medium:: Mineral based oil, such as 32#, 46# or equals medium
Medium recommended filtration:: 25 Micron or better
Working temperature:: -20~+80℃ or as customers indicated
Surface treatment:: Stainless steel original color, or chrome and zinc plated as indicated

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Product Description

Payment & Shipping Terms Supply Capacity
Trade Term:FOBProduction Capacity:25000
Payment Terms:L/C, D/P, D/A, T/T, WUPacking:Standard packing for...
Min. Order:50 Set/SetsDelivery Date:Depending quantity
Means of Transport:Express, Ocean, Air, Land

Brief introduction:

    The pressure unloading main service valves for Komatsu PC220 excavator is to unload the pressure when the excavator needs small pressure and execute the next step.

    Please check the pressure unloading valve or change the valve if there is troubleshooting of the hydraulic system as follow:

    When the driver starts the engine and the operate lever in neutral, the main pump output hydraulic oil through the pressure unloading valve directly back to the tank, the unloading pressure is 3MPa. But if the spool and seat of the unloading valve does not seal tightly due to dirty medium/oil, the main pump output oil in hydraulic system can not establish the high pressure when the excavator is operating. The second problem is the damage of the pressure unloading valve O rings, which will lead the hydraulic oil in the main pumps flows to the tank directly, can not keep the normal pressure. Please check and change the pressure unloading valve if the problems above can not be fixed.

Komatsu PC220 Excavator Hydraulic Cartridge Type Pressure Unloading Main Service Valve
Komatsu PC220 Excavator Hydraulic Cartridge Type Pressure Unloading Main Service Valve

Category: Komatsu Excavator Pressure Cartridge Valves

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