21270284 Safety Valve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta pressure-relief safety valve used with the 225 cm³ PTO-driven air-compressor installation on TAD560VE engines. The valve protects the compressor circuit from pressure above its calibrated limit and must not be replaced with an unverified generic relief valve.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD560VE
• Volvo Penta TAD561VE
• Volvo Penta TAD765VE
• Volvo Penta TAD764VE
• Volvo Penta TAD763VE
• Volvo Penta TAD762VE
• Volvo Penta TAD761VE

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta calibrated safety valve
• Used with the 225 cm³ PTO-A compressor arrangement
• Protects the pneumatic circuit from overpressure
• Correct thread, flow capacity and opening calibration
• Replace if leaking, seized, contaminated or out of calibration
• Engine type: Volvo Penta inline-six industrial diesel with auxiliary air compressor

🔌 Function

Relieves excessive pressure from the compressor circuit before hoses, fittings or driven equipment are damaged.

⚠️ Common Signs of Failure

• Pressure or flow outside specification
• Leakage through the valve body or connections
• Valve sticking open or closed
• Repeated alarms, unstable operation or loss of system protection
• Corrosion, contamination or damaged sealing surfaces

🛠️ Service Notes

• Calibrated specifically to the 225 cm³ PTO-A compressor circuit - do not fit a generic or uncalibrated relief valve in its place
• Depressurise the compressor circuit fully before removing the valve
• If the valve has been relieving in service, find what raised the circuit pressure before fitting a replacement, rather than assuming the valve alone is at fault

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21270284 → Supersedes 21242586

OEM / Related Numbers

• 21242586 earlier number superseded by this part
• 21053802 - associated air compressor
• 21242452 - compressor gasket kit
• 21242444 - associated plate
• 20860834 - associated drive gear

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging