Warrick 3E1B Probe Fitting

The Warrick 3E1B Probe Fitting is a heavy-duty, single-probe electrode holder engineered for high-pressure conductivity-based liquid level control. Designed to handle up to 250 PSI at 406°F, this cast brass fitting is a robust solution for steam boilers, hydronic systems, and industrial vessels. It features a 1-inch NPT male mounting connection for secure installation into the top of the tank and a 1/2-inch NPT conduit boss for protected electrical termination. As a direct replacement for the legacy 3E1BU model, the 3E1B ensures seamless mechanical compatibility. This fitting requires 3R rigid rods or 3W wire-suspended electrodes to complete the sensing circuit. When bridged with a compatible Warrick level control relay, it provides precise high-low alarm or pump control functionality with no moving parts to foul or fail.

• Direct Replacement: Fully compatible with existing 3E1BU footprints, eliminating the need for piping modifications.
• High-Pressure Performance: Rated for 250 PSIG, making it suitable for demanding steam and process applications.
• Durable Brass Construction: Resists corrosion and provides long-term structural integrity in harsh boiler environments.
• NPT Mounting: Standard 1-inch NPT external threads and 1/2-inch NPT conduit boss ensure a standard, code-compliant install.
• Solid State Reliability: No floats or mechanical linkages are required, reducing maintenance intervals in conductive liquids.

• Which electrodes are compatible with the 3E1B? This fitting is designed to accept 3R series rigid rods or 3W wire-suspended electrodes with 1/4-20 threads.
• Can this be used for low water cutoff (LWCO)? Yes, when paired with a UL-recognized Warrick control, this probe fitting is a standard component for liquid level monitoring and LWCO systems.
• What is the maximum operating temperature? The assembly is rated for a maximum temperature of 406°F at 250 PSI.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.