Johnson Controls WEL16A-600R Well Assm

As a field technician, you know that protecting your temperature sensors from high-velocity flow and corrosive environments is critical for accurate readings and system longevity. The Johnson Controls WEL16A-600R is a professional-grade immersion well assembly engineered specifically for HVAC and hydronic applications. This unit features a 1/2-inch NPT external thread brass connector paired with a high-conductivity copper bulb tube, ensuring rapid thermal transfer and minimal lag in temperature sensing. With a precise 0.299-inch inside diameter, it is designed to house standard 1/4-inch diameter sensor bulbs, providing a snug fit that eliminates the need for excessive thermal paste while shielding the sensing element from direct scale buildup and hydraulic pressure. Measuring 2-3/8 inches in length, it provides an ideal insertion depth for medium-bore piping without causing significant flow restriction. Whether you are performing a JCI sensor installation or a routine HVAC bulb well replacement, this Johnson Controls well assembly delivers the mechanical protection and thermal sensitivity required for demanding domestic and industrial control loops.

Key Benefits

• Effective 0.299 ID housing compatible with standard 1/4" sensor bulbs.
• Rugged copper bulb tube construction for superior thermal conductivity and response time.
• Durable 1/2" NPT brass connector provides a leak-proof seal in pressurized hydronic systems.
• Protects sensitive electronic components from direct exposure to water flow and chemical additives.
• Standard 2-3/8 inch insertion length suits a wide variety of pipeline and tank configurations.

Common Questions

What is the maximum sensor diameter for the WEL16A-600R?
This well assembly has an internal diameter of 0.299 inches, making it a perfect fit for sensors with a 0.25 (1/4) inch diameter, allowing room for thermal conductive compound.

Can I use this for high-pressure steam applications?
This unit utilizes a copper tube and brass fitting; while excellent for water and glycol-based hydronic loops, always verify that your specific system pressure and temperature do not exceed standard copper ratings.

Is the WEL16A-600R compatible with non-Johnson Controls sensors?
Yes, as long as the sensor bulb is 1/4 inch in diameter and no longer than the 2-3/8 inch well, it will function correctly as a protective thermowell.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.