Wika 51040A008G4 Bimetal Dial Thermometer 50-300F 4in Stem

Product Description

The WIKA 51040A008G4 is a bimetal dial thermometer designed for temperature measurement in HVAC, plumbing, and industrial process applications. It operates over a range of 50 to 300 degrees F (10 to 150 degrees C) and features a bottom-connected mount with a 4-inch stem length. The housing and stem are constructed from 18-8 stainless steel, making it suitable for corrosive or wet environments. Accuracy is rated at 1.0 percent of full scale. Licensed HVAC technicians, plumbers, and pipefitters rely on this type of instrument for in-line temperature monitoring on pipes, boilers, and hydronic systems.

This thermometer is suited for residential and light commercial HVAC and plumbing installations where a durable, direct-immersion dial thermometer is required. The bottom-connected configuration allows straight installation into tees, wells, or fittings on vertical or horizontal pipe runs. The 50 to 300 degrees F range covers typical domestic hot water, hydronic heating, and process fluid monitoring scenarios. Installation is straightforward in standard thermowell or pipe-thread fittings of the appropriate size.

Key Features

• Temperature range: 50 to 300 degrees F (10 to 150 degrees C)
• Bottom-connected mount for direct pipe or thermowell installation
• 4-inch stainless steel stem for adequate immersion depth
• 18-8 stainless steel construction for corrosion resistance
• 1.0 percent full-scale accuracy for reliable field readings

Compatibility

Designed as an OEM-style replacement or new-installation bimetal dial thermometer for use with standard thermowell fittings and pipe connections in residential and commercial HVAC, plumbing, and hydronic heating systems.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off fluid flow and relieve system pressure before inserting or removing the thermometer from a live line. Use a thermowell where process isolation or frequent removal is required. Follow applicable local plumbing and mechanical codes when selecting fitting type and installation location.