SOLENOID VALVE NC 1/2 321H2522 OILON Burner Safety Valve

The SOLENOID VALVE NC 1/2 321H2522 OILON (Part / Model No: 321H2522, Oilon Code: 321H2522) is a high-reliability, normally closed (NC) 1/2-inch electromagnetic fuel valve engineered for heavy-duty oil burners, boilers, and industrial heating systems. Manufactured for Oilon burner systems (commonly manufactured by Parker / Lucifer), the SOLENOID VALVE NC 1/2 321H2522 OILON ensures precise fuel shut-off and safety control during oil combustion firing cycles.

Designed specifically for handling light and heavy fuel oils under varying pressure conditions, this 2/2-way direct/pilot-operated solenoid valve automatically opens upon electrical energization and instantly snaps closed when power is cut off. Mounted directly on burner oil pumping lines and manifold blocks, the SOLENOID VALVE NC 1/2 321H2522 OILON provides essential safety interlocking against accidental fuel leakage into heating chambers.

Key Features of the SOLENOID VALVE NC 1/2 321H2522 OILON

• Normally Closed (NC) Safety Operation: Remains tightly shut when de-energized, preventing unscheduled oil flow into combustion zones.

• 1/2″ Threaded Connection: Standard G 1/2 (BSPP) female threaded inlet/outlet ports for seamless integration with fuel oil lines.

• Fuel Oil Resistance: Built with high-grade FKM (Viton) or Ruby seal materials specifically rated for light distillate, diesel, and heavy fuel oils.

• High-Pressure Capability: Engineered to withstand high fuel pump pressures typical in commercial and marine oil burners.

• Rapid Response Time: Instantaneous shut-off and opening times ensure precise fuel dosing and flame control.

• Heavy-Duty Construction: Brass body with robust coil housing rated for high ambient temperature boiler room environments.

Primary Applications

• Oilon Oil Burners: Fuel oil safety shut-off and stage control on Oilon industrial, commercial, and marine oil burners.

• Boiler & Furnace Plants: Automatic fuel isolation on steam boilers, hot water generators, and thermal fluid heaters.

• Marine Power Equipment: Fuel line switching on auxiliary shipboard boilers, incinerators, and diesel engine pre-heating systems.

Technical Specifications

Package Contents

• 1 × SOLENOID VALVE NC 1/2 321H2522 OILON Valve Body Unit

• 1 × Standard Electrical Coil Connector Plug