Wika 52914163 Bimetal Dial Thermometer 0-140F 2.5in Stem

Product Description

The WIKA 52914163 is a bimetal dial thermometer designed for direct-mount temperature measurement in HVAC, plumbing, and light industrial applications. The thermometer operates over a range of 0 to 140 degrees F (-20 to 60 degrees C) and mounts via a back-connection fitting, positioning the dial face outward for easy reading on pipes, tanks, and equipment panels. The housing and stem are constructed from 18-8 stainless steel, providing corrosion resistance in wet or chemically active environments. A 2.5-inch stem length allows insertion into standard process ports. Accuracy is rated at 1.0 percent of full scale, suitable for general-purpose service monitoring. The unit ships individually and requires no external power source.

This thermometer is appropriate for residential and light commercial HVAC systems, hydronic heating and cooling loops, domestic hot water systems, and plumbing process lines where a compact, self-contained temperature indicator is needed. The back-connection configuration suits panel-mounted or pipe-tee installations where the technician needs the dial to face a specific direction. It is commonly installed by HVAC technicians, plumbers, and pipefitters during new construction, system commissioning, and preventive maintenance work.

Key Features

• Temperature range of 0 to 140 degrees F (-20 to 60 degrees C) suits common hydronic and HVAC service temperatures
• 1.0 percent full-scale accuracy for reliable general-purpose readings
• 18-8 stainless steel stem and housing resist corrosion in wet and mildly corrosive environments
• 2.5-inch stem length fits standard pipe tees and process ports
• Back-connection mount positions the dial face forward for panel or inline installations
• No external power required — fully mechanical bimetal sensing element

Compatibility

Designed as an OEM-style replacement or new-installation bimetal thermometer for residential and commercial HVAC, plumbing, and hydronic system process connections using a back-mount configuration.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or HVAC technician in accordance with applicable local mechanical codes. Shut down and depressurize the system before installing or replacing the thermometer to prevent scalding or pressure-related injury. Use appropriate thread sealant on the connection threads and avoid over-tightening, which can damage the fitting or stem. Verify that the system operating temperature falls within the 0 to 140 degrees F rated range before placing the thermometer in service.