ENFM 4104-2.5-4-20 Gauge

The ENFM 4104-2.5-4-20 is a high-precision combination pressure and temperature gauge, often referred to as a tridicator, designed for industrial boiler and hydronic heating system monitoring. This professional-grade instrument features a 2.5-inch dial face with a dual-scale display for real-time diagnostics. The pressure range covers 0-75 PSI, while the temperature scale spans 70-320°F, making it ideal for low-pressure steam and hot water applications. Built with a 1/4" NPT back connection, it ensures a secure, leak-free integration into the system manifold. The 2-inch stem length allows for accurate immersion in the process fluid, providing the HVAC pressure temperature readings necessary for balancing and safety checks. For technicians replacing failed OEM gauges, this model offers the rugged construction and accurate hydronic gauge performance required to maintain peak system efficiency without frequent recalibration.

• Dual-Scale Interface: Simplifies monitoring by providing simultaneous pressure and temperature readings on a single 2.5" dial face.
• Hydronic System Compatibility: Optimized for low-pressure boilers with a 0-75# range suited for standard residential and light commercial loops.
• Durable 1/4" Back Mount: Heavy-duty NPT threaded connection ensures vibration-resistant installation in tight mechanical rooms.
• High-Temperature Accuracy: Rated up to 320 degrees Fahrenheit, providing a reliable safety margin for high-limit operating conditions.

What is the proper way to install a back-mount tridicator?
Ensure you use a quality thread sealant or PTFE tape on the 1/4" NPT threads. Always tighten from the brass socket using the correct wrench; never application torque via the gauge case to avoid internal movement damage.

Can the ENFM 4104-2.5-4-20 be used in potable water systems?
This gauge is specifically engineered for closed-loop hydronic heating and boiler applications. For potable water, check local codes regarding lead-free brass requirements before installation.

How do I verify if the 2-inch stem length is correct for my manifold?
The stem must be long enough to reach the flow of the media but not so long that it obstructs the pipe interior. This model is the standard fit for standard boiler tee configurations.

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.