Maximum Pressure: The maximum pressure of the PC220-7 main relief valve is 34.3 MPa (4,975 psi).
Fluid Temperature Range: It can operate within a fluid temperature range of -10 °C to 80 °C (14 °F to 176 °F).
Part Number: One of the common part numbers for the main relief valve of PC220-7 is 723-40-92203, which also fits other models such as PC220LC-7, PC270-7, PC240-8K, and PC308USLC-3E0.
PC220-8 Main Relief Valve
Part Number: The main relief valve for PC220-8 has a part number of 723-40-93600. This valve also fits other Komatsu excavator models like PC200-8, PC228US-8, and PC270-8.
Fitment Details: It is applicable to PC220-8 s/n 70001-up (ecot 3) excavators, PC220-8 s/n 80001-up excavators, and other related models with specific serial numbers as mentioned in the fitment details.
In general, both the PC220-7 and PC220-8 main relief valves play a crucial role in protecting the hydraulic system of the excavators by relieving excess pressure. They are designed to ensure the safe and efficient operation of the hydraulic components within the specified pressure and temperature ranges.
