WEISHAUPT 121G2320 SOLENOID VALVE (3/8″ NC Heavy Oil Valve)

The WEISHAUPT 121G2320 SOLENOID VALVE (Weishaupt Part No. 604520 / Parker Lucifer Type 121G2320) is a high-pressure, normally closed (NC) 2/2-way electromagnetic safety shut-off valve designed for oil burner fuel supply assemblies. Engineered specifically for Weishaupt industrial oil burners, this heavy-duty brass valve controls and isolates liquid fuel flow (light EL and heavy oil) to the atomizing nozzle line, preventing unburnt fuel leakage into the combustion chamber.

Operating across standard 230V 50Hz / 240V 60Hz electrical supplies, the WEISHAUPT 121G2320 SOLENOID VALVE handles operating pressures up to 30 bar. Its high-temperature seal construction permits reliable operation with preheated medium oils up to 160°C, making it a critical safety replacement part for commercial and marine boiler firing installations.

Key Features of the WEISHAUPT 121G2320 SOLENOID VALVE

• Normally Closed (NC) Fail-Safe Action: Automatically snaps shut upon loss of power to prevent fuel delivery during burner shutdown or emergency lockouts.

• High-Pressure Capability: Rated for working pressures up to 30 bar, ensuring positive sealing under demanding burner pump head pressures.

• High-Temperature Resistance: Engineered with specialized FKM/Viton or metallic seating to safely handle fuel oil medium EL (up to 60°C) and heavy fuel oils (up to 160°C).

• Direct OEM Compliance: Manufactured under Lucifer/Parker standards for direct plug-and-play installation on standard Weishaupt oil nozzle blocks and oil valve rings.

• Durable Forged Brass Body: Robust construction built to resist corrosion, pressure spikes, and mechanical vibration in heavy boiler room environments.

Primary Applications

• Weishaupt Industrial Oil Burners: Direct shut-off valve replacement on Weishaupt L, M, and RMS series oil burners

• Heavy Fuel Oil (HFO) Preheating Circuits: Isolation of preheated fuel lines in commercial and marine boiler systems

• Hydraulic Nozzle Line Control: Managing fuel release to single-stage, multi-stage, or modulating oil atomizing nozzles

Technical Specifications

Package Contents

• 1 × WEISHAUPT 121G2320 SOLENOID VALVE Assembly (Body + Coil)

• Installation & Technical Specification Sheet