BAPI BA/4M304 Thermowell Stainless Steel 4.5" Insertion 1/2" NPT

The BAPI BA/4M304 is a machined 304 stainless steel thermowell designed for use with BAPI immersion temperature sensors in hydronic HVAC applications. This protective well allows permanent installation in pipes while enabling temperature measurement without direct sensor contact with pipe contents.

Key Features:

• Machined 304 stainless steel construction for excellent corrosion resistance
• 4.5 inch insertion length provides proper immersion depth for accurate temperature sensing
• 1/2 inch NPT external threads for secure pipe mounting
• 1/2 inch NPSM internal threads accommodate standard BAPI immersion probe fittings
• Compatible with BAPI thermistor and RTD immersion sensors
• NEMA 1 enclosure rating when used with appropriate sensor assemblies

This thermowell is installed permanently into piping systems and acts as a protective tube for BAPI immersion probe temperature sensors. The design allows sensors to be removed for servicing without interrupting system operation or draining pipes. Ideal for measuring temperatures in water pipes, hydronic heating and cooling systems, and other liquid process applications where sensor protection is required.