VolvoHydraulic Parts

11802877 — Relief Valve Voe11802877 For Volvo Loader Bl60 Bl61 Bl70 Excavator Ec15C Ec17C Ec18C Ec20C Ecr35D

This relief valve is a vital safety component within the hydraulic system, designed to protect components from over-pressurization by diverting excess fluid. It is constructed from high-grade materials to ensure reliable operation and longevity, outperforming worn valves that may stick or leak. Operators may notice a loss of hydraulic power, unexpected machine movements, or a whining noise from the pump if this valve is malfunctioning.

Relief Valve Voe11802877 For Volvo Loader Bl60 Bl61 Bl70 Excavator Ec15C Ec17C Ec18C Ec20C Ecr35D – Part No 11802877 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryHydraulic Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeRelief Valve
MaterialHardened Steel
ApplicationMain Hydraulic System Pressure Regulation
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A primary symptom of a failing relief valve is a consistent loss of hydraulic power or the machine's inability to perform heavy lifting tasks. If ignored, the hydraulic system will continue to operate under excessive pressure, leading to premature wear on pumps and actuators. The ultimate consequence is potential damage to critical hydraulic components, resulting in costly repairs and downtime.

Installation Tip

Ensure the hydraulic system is properly depressurized before attempting to remove the old valve to prevent injury. Do not reuse old sealing washers or O-rings, as they can cause leaks and system contamination.

Service Note

When replacing the relief valve, inspect the hydraulic filter for debris and check the hydraulic fluid level and condition.