Westwood Products h25 Tridicator 2.5 in Dial 0-75 Psi 70-320F Cbm

Product Description

The WESTWOOD PRODUCTS h25 is a dry tridicator gauge designed to simultaneously display temperature and pressure readings in hydronic heating systems. It features a 2.5 inch dial face with dual temperature scales — 70 to 320 degrees F and 20 to 160 degrees C — alongside a pressure range of 0 to 75 psi, equivalent to 0 to 170 feet of water column. The center back mount (CBM) configuration uses a 0.25 inch NPT fitting, a 1.75 inch shank, and a 1 inch insert. Licensed plumbers and HVAC technicians install this gauge on boilers and closed-loop hydronic systems where a single instrument must confirm both operating temperature and system pressure.

The h25 tridicator is suited for residential and light commercial hot water boiler installations. It mounts to the boiler or supply line at a 0.25 inch NPT back port, giving a direct, unobstructed dial view from the front of the unit. The center back mount style is common in boiler trim packages where space is limited and a clean panel appearance is required. No compatible model numbers are specified in the product data for this SKU.

Key Features

• Simultaneous pressure and temperature display in a single instrument
• Dual temperature scales: 70 to 320 degrees F and 20 to 160 degrees C
• Pressure range: 0 to 75 psi (0 to 170 feet of water column)
• 2.5 inch dial face for clear, at-a-glance readings
• Center back mount (CBM) with 0.25 inch NPT connection
• Dry gauge construction — no liquid fill

Compatibility

Designed as an OEM-style replacement tridicator for residential and light commercial hot water boiler systems using a 0.25 inch NPT back-mount port with a 1.75 inch shank and 1 inch insert depth.

Installation Notes

Installation of boiler trim gauges is typically performed by a licensed plumber or heating technician in accordance with local mechanical codes and IFGC or IPC requirements. Shut down the boiler and relieve system pressure before removing or installing the tridicator. Apply thread sealant approved for potable and hydronic systems to the NPT threads before seating the gauge. Do not overtighten — use a wrench on the hex body only, not on the dial housing.

Technical Specifications

• Product Type: Tridicator
• Mount Type: Center Back Mount (CBM)
• Connection Size: 0.25 inch NPT
• Dial Size: 2.5 inches
• Shank Length: 1.75 inches
• Insert Length: 1 inch
• Pressure Range: 0 to 75 psi (0 to 170 ft water column)
• Temperature Range (F): 70 to 320 degrees F
• Temperature Range (C): 20 to 160 degrees C
• Gauge Type: Dry
• Measures: Pressure, Fahrenheit, Celsius

Standard Information

• Brand: WESTWOOD PRODUCTS
• Manufacturer Part Number: h25