ENFM 4104-3.25-2-70 Gauge

The ENFM 4104-3.25-2-70 is a high-precision HVAC tridicator gauge designed for simultaneous monitoring of system pressure and temperature. Engineered for heavy-duty hydronic applications, this 3.25-inch dial gauge features a 0-100 PSI pressure range and a 70°F to 320°F temperature scale, providing critical data for boiler and process piping maintenance. With a 1/2 inch NPT back mount connection and a 2-inch stem, it ensures a secure, leak-proof fit in standard thermowells. This model is the direct replacement for 4104-3.25-2-80, offering the same reliable performance with updated corrosion-resistant materials. Whether you are performing a boiler system diagnostic or a routine HVAC system inspection, this dual-reading instrument delivers the accuracy required to prevent equipment failure and optimize energy efficiency in industrial and residential environments.

• Dual-Scale Functionality: Measures both pressure (0-100#) and temperature (70/320F) in one compact unit, reducing the need for multiple tap-ins.
• Durable Construction: Built with corrosion-resistant internal components and a rugged case to withstand demanding mechanical room conditions.
• Easy Installation: The 1/2" back connection and 2" stem length allow for seamless integration into existing hydronic headers and tanks.
• Standardized Replacement: Specifically designed as the direct replacement for 4104-3.25-2-80, ensuring zero-mod compatibility during swap-outs.

Is the 4104-3.25-2-70 compatible with my older 4104-3.25-2-80 setup?
Yes, this model is the official replacement for the -80 version, sharing identical connection sizes and stem lengths for a drop-in fit.

What is the primary application for this specific gauge range?
This gauge is typically utilized in hydronic heating systems and commercial boilers where monitoring operating pressure and supply water temperature is essential for safety.

Does the stem length include the threads?
The 2" stem measurement generally refers to the length from the bottom of the hexagonal nut to the tip of the probe, ensuring it seats correctly within the pipe flow.

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.