VolvoHydraulic Parts

VOE11802877 — Relief Valve Voe11802877 For Volvo Loader Bl60 Bl61 Bl70 Excavator Ec15C Ec17C Ec18C Ec20C Ecr35D

This relief valve is a safety component within the hydraulic system of Volvo loaders and excavators, designed to protect the system from over-pressurization. It automatically vents excess hydraulic fluid back to the tank when system pressure exceeds a preset limit, preventing damage to pumps, hoses, and cylinders. Operators might notice a sudden loss of hydraulic power or hear a constant hissing sound if the valve is stuck open or leaking.

Relief Valve Voe11802877 For Volvo Loader Bl60 Bl61 Bl70 Excavator Ec15C Ec17C Ec18C Ec20C Ecr35D – Part No VOE11802877 – 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
ApplicationHydraulic system pressure regulation
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A malfunctioning relief valve may cause a sudden loss of hydraulic power or a noticeable drop in system pressure, often accompanied by a hissing sound as fluid bypasses. If the valve is stuck open, the equipment may struggle to perform its intended functions due to insufficient pressure. If stuck closed, the system is at risk of over-pressurization, which can lead to hose bursts or component damage.

Installation Tip

Ensure the hydraulic system is depressurized before attempting to remove or install the relief valve. Be careful not to overtighten the valve, as this can damage the threads or the valve seat.

Service Note

Inspect the hydraulic fluid for debris and consider replacing the hydraulic filter when servicing or replacing the relief valve.