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HONEYWELL HOME Copper Mounting Flange Thermowell - HVAC Thermowells
HONEYWELL HOMEHVAC Thermowells

HONEYWELL HOME Copper Mounting Flange Thermowell

The HONEYWELL HOME Immersion Well: Mounting Flange (SKU 121371L, MPN 121371L) is a copper HVAC thermowell with a mounting flange type and a 1/2 in external thread size. It features a copper shank and copper…

SKU 3G-OTH-68660

Also listed as: 121371 L · 121371-L

Brand
HONEYWELL HOME
Item
Copper Mounting Flange Thermowell
Category
HVAC Thermowells
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HONEYWELL HOME
Manufacturer Part Number
121371L
Type
Copper, Copper
Shank Material
Copper
Thermowell Type
Mounting Flange
Connection Material
Copper
External Thread Size
1/2 in
Maximum Insertion/Bulb Length
3 in, 3/8 in

Technical Documents

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HONEYWELL HOME Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HONEYWELL HOME Immersion Well: Mounting Flange (SKU 121371L, MPN 121371L) is a copper HVAC thermowell with a mounting flange type and a 1/2 in external thread size. It features a copper shank and copper connection material, with a maximum insertion/bulb length of 3 in and 3/8 in.

Frequently Asked Questions

What is the HONEYWELL HOME Immersion Well 121371L used for?

The HONEYWELL HOME Immersion Well 121371L is a copper mounting flange thermowell used in HVAC systems to house temperature sensors or bulbs. It protects the sensing element from process pressure and corrosion while allowing accurate temperature measurement in pipes or tanks.

What are the specifications of the HONEYWELL HOME 121371L thermowell?

The HONEYWELL HOME 121371L is a mounting flange thermowell with a copper shank and copper connection. It has a 1/2 in external thread size and a maximum insertion/bulb length of 3 in and 3/8 in. The manufacturer part number is 121371L.

Where to buy the HONEYWELL HOME 121371L thermowell worldwide?

You can source the HONEYWELL HOME 121371L thermowell from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install a HONEYWELL HOME mounting flange thermowell?

To install the HONEYWELL HOME mounting flange thermowell, first ensure the pipe or tank has a matching 1/2 in threaded opening. Apply thread sealant to the external threads, then screw the thermowell into place until snug. Insert the temperature sensor or bulb fully into the well for accurate readings.

Used in

Common applications for HONEYWELL HOME
Residential HVAC — Honeywell Home TH115-A-120S/U thermostat for 7-day programmable temperature control in homes.
Light commercial buildings — Honeywell Home TL8230A1003 line-voltage thermostat for electric heating systems in offices.
Hydronic heating systems — Honeywell Home L4006E1117 immersion controller for high-limit temperature regulation in boilers.
Indoor air quality monitoring — Honeywell Home C7263A1008 air quality sensor for gas analysis in commercial facilities.
Furnace control — Honeywell Home ST9120U1011 timer controller for circulating fan timing in integrated furnace systems.
HVAC switching — Honeywell Home RA889A1001 switching relay for 24V AC control of zone valves or dampers.

HONEYWELL HOME Products

3G Electric supplies HONEYWELL HOME hvac thermowells. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This direct-mount thermowell with setscrew is designed for HVAC temperature sensing applications. It features a copper shank and brass connection material, with an inside diameter of 0.299 inches and a maximum insertion/bulb length of 2-3/8 inches. The thermowell protects temperature sensors from process pressure, flow, and corrosion in pipes or tanks
JOHNSON CONTROLS
This direct-mount thermowell with setscrew is designed for HVAC temperature sensing applications. It features a copper shank and brass connection material, with an inside diameter of 0.299 inches and a maximum insertion/bulb length of 2-3/8 inches. The thermowell protects temperature sensors from process pressure, flow, and corrosion in pipes or tanks
This thermowell is designed for use in HVAC systems to protect temperature sensors from process fluid contact. It features a copper shank and brass connection material, with an inside diameter of 0.43 in and a maximum insertion/bulb length of 5-13/16 in. The direct mount with setscrew design allows secure installation in pipes or tanks
JOHNSON CONTROLS
This thermowell is designed for use in HVAC systems to protect temperature sensors from process fluid contact. It features a copper shank and brass connection material, with an inside diameter of 0.43 in and a maximum insertion/bulb length of 5-13/16 in. The direct mount with setscrew design allows secure installation in pipes or tanks
This thermowell is designed for direct mounting in HVAC systems to house temperature sensors or bulbs. It features a copper shank and brass connection material, with an inside diameter of 0.43 in and a maximum insertion/bulb length of 4-15/16 in. The setscrew secures the sensing element, allowing easy removal for maintenance without system shutdown
JOHNSON CONTROLS
This thermowell is designed for direct mounting in HVAC systems to house temperature sensors or bulbs. It features a copper shank and brass connection material, with an inside diameter of 0.43 in and a maximum insertion/bulb length of 4-15/16 in. The setscrew secures the sensing element, allowing easy removal for maintenance without system shutdown
This direct-mount thermowell with setscrew is used in HVAC systems to house temperature sensors in pipes or tanks, protecting them from process pressure and flow while allowing sensor replacement without system shutdown. It features a brass shank and malleable connection material, with a 0.299-inch inside diameter and a maximum insertion/bulb length of 2-3/8 inches
JOHNSON CONTROLS
This direct-mount thermowell with setscrew is used in HVAC systems to house temperature sensors in pipes or tanks, protecting them from process pressure and flow while allowing sensor replacement without system shutdown. It features a brass shank and malleable connection material, with a 0.299-inch inside diameter and a maximum insertion/bulb length of 2-3/8 inches
Brass thermowell with direct mount and setscrew design for temperature sensor protection in HVAC piping and tanks. Inside diameter 0.26 in, accommodates maximum insertion/bulb lengths of 2-3/8 in and 4-2/3 in. Shank and connection material are brass
JOHNSON CONTROLS
Brass thermowell with direct mount and setscrew design for temperature sensor protection in HVAC piping and tanks. Inside diameter 0.26 in, accommodates maximum insertion/bulb lengths of 2-3/8 in and 4-2/3 in. Shank and connection material are brass
Stainless steel thermowell for direct mounting with setscrew. Shank and connection material are stainless steel. Maximum insertion/bulb lengths of 2-3/8 in and 4-2/3 in. Used in HVAC piping systems to protect temperature sensors and allow insertion or removal without system shutdown
JOHNSON CONTROLS
Stainless steel thermowell for direct mounting with setscrew. Shank and connection material are stainless steel. Maximum insertion/bulb lengths of 2-3/8 in and 4-2/3 in. Used in HVAC piping systems to protect temperature sensors and allow insertion or removal without system shutdown

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Copper thermowell with mounting flange for temperature sensor protection in HVAC and process piping. Features a 3/4 in external thread, copper shank and connection, with maximum insertion/bulb length of 3 in and 3/8 in
HONEYWELL HOME
Copper thermowell with mounting flange for temperature sensor protection in HVAC and process piping. Features a 3/4 in external thread, copper shank and connection, with maximum insertion/bulb length of 3 in and 3/8 in
This mounting flange thermowell features a copper shank and copper connection material. It has a 3/4 in external thread size and supports a maximum insertion/bulb length of 3 in and 3/8 in. Used in HVAC systems to protect temperature sensors in pipes or tanks, it allows accurate measurement while shielding the sensor from pressure, corrosion, and flow
HONEYWELL HOME
This mounting flange thermowell features a copper shank and copper connection material. It has a 3/4 in external thread size and supports a maximum insertion/bulb length of 3 in and 3/8 in. Used in HVAC systems to protect temperature sensors in pipes or tanks, it allows accurate measurement while shielding the sensor from pressure, corrosion, and flow