Weil-mclain wm510218065 Combination Pressure-temperature Gauge 0-55 Psig 60-260F 3.5 Inches Shank

Product Description

The Weil-McLain wm510218065 is a combination pressure-temperature gauge designed for use with Weil-McLain boiler systems. This gauge provides simultaneous pressure and temperature readings from a single instrument, making it a practical and efficient monitoring tool for hydronic heating systems. HVAC technicians and boiler service professionals rely on combination gauges like this one to quickly assess system conditions during startup, maintenance, and troubleshooting. Having both readings on one dial reduces the number of fittings needed and simplifies the boiler piping layout. The wm510218065 covers a pressure range of 0 to 55 PSIG, which is appropriate for residential and light commercial hot water heating boilers. The temperature scale runs from 60 to 260 degrees Fahrenheit, covering normal operating temperatures as well as high-limit conditions that may indicate a system problem. The gauge uses a back connection measuring 1/2 inches NPT, which is the standard thread size found on most boiler tapping ports and allows for straightforward installation without adapters in most cases. The shank length is 3.5 inches, matching the Weil-McLain shank specification 144435. This gauge is a direct-fit replacement for Weil-McLain 86, 88, 94, LGB, and MGB boiler series, making it a go-to part for technicians who regularly service these boiler lines. Keeping an accurate, properly functioning pressure-temperature gauge on a boiler is essential for safe operation. A faulty or unreadable gauge can mask dangerous pressure buildup or overheating conditions. Using a manufacturer-specified replacement ensures compatibility with the boiler design and maintains system integrity.

• Combination pressure and temperature gauge reads 0-55 PSIG and 60-260 degrees Fahrenheit on a single dial
• Back connection is 1/2 inches NPT for standard installation on most boiler tapping points
• 3.5 inches shank length per Weil-McLain shank specification 144435, designed for direct fit on 86, 88, 94, LGB, and MGB boiler series

Product Highlights

The Weil-McLain wm510218065 is a purpose-built replacement combination pressure-temperature gauge that delivers reliable dual-function monitoring for Weil-McLain residential and commercial boilers. Its standard NPT back connection and correct shank length make installation straightforward for HVAC professionals servicing these boiler lines.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: wm510218065

Technical Specifications

• Pressure Range: 0-55 PSIG
• Temperature Range: 60-260 degrees Fahrenheit
• Connection Type: Back Connection
• Connection Size: 1/2 inches NPT
• Shank Length: 3.5 inches
• Shank Specification: 144435
• Compatible Boiler Series: 86, 88, 94, LGB, MGB