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3G Electric
SPENCE 99B Brass Threaded Thermowell - Temperature Regulator & Duct Sensor Thermowells
SPENCETemperature Regulator & Duct Sensor Thermowells

SPENCE 99B Brass Threaded Thermowell

The SPENCE Threaded Thermowell: Brass (MPN 99B) is a temperature regulator and duct sensor thermowell designed for use with a 13 3/8 in stem length and 10 1/2 in insertion length. It has a maximum operating pressure…

SKU 3G-OTH-179726

Brand
SPENCE
Item
99B Brass Threaded Thermowell
Part Number
99B
Category
Temperature Regulator & Duct Sensor Thermowells
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

SPENCE
Manufacturer Part Number
99B
Type
For 13 3/8 in Stem Lg, 250 psi, 400°F
Insertion Lg
10 1/2 in
Maximum Operating Pressure
250 psi
Maximum Operating Temperature
400°F

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

Product Description

The SPENCE Threaded Thermowell: Brass (MPN 99B) is a temperature regulator and duct sensor thermowell designed for use with a 13 3/8 in stem length and 10 1/2 in insertion length. It has a maximum operating pressure of 250 psi and a maximum operating temperature of 400°F.

Frequently Asked Questions

What is the SPENCE Threaded Thermowell 99B used for?

The SPENCE Threaded Thermowell 99B is used to protect temperature sensors in industrial piping and duct systems. It allows accurate temperature measurement while shielding the sensor from process pressure, flow, and corrosion. Common applications include steam, water, and oil lines in power plants, refineries, and HVAC systems.

What are the specifications of the SPENCE 99B thermowell?

The SPENCE 99B is a brass threaded thermowell with a 13 3/8 in stem length and 10 1/2 in insertion length. It has a maximum operating pressure of 250 psi and a maximum operating temperature of 400°F. The manufacturer part number is 99B, and it is designed for use with temperature regulators and duct sensors.

Where to buy the SPENCE 99B thermowell worldwide?

You can source the SPENCE 99B thermowell through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this SPENCE temperature regulator accessory.

How to install the SPENCE threaded thermowell 99B?

Install the SPENCE 99B thermowell by threading it into a matching NPT port in the pipe or duct wall. Apply thread sealant to ensure a leak-proof seal. Insert the temperature sensor fully into the thermowell until it contacts the bottom. Tighten to the recommended torque; avoid overtightening brass components. Always follow SPENCE installation guidelines.

Used in

Common applications for SPENCE
Process heating — SPENCE reverse-acting temperature regulators (e.g., 2020TD-GQD) control steam flow to maintain set temperatures in heat exchangers and jacketed vessels.
Condensate removal — SPENCE steam trap repair kit for model 4NU80 restores internal components in steam traps used for condensate removal and energy management.
Storage tank heating — SPENCE bronze temperature regulators with 1/2 in to 2 in connections modulate steam to maintain fluid temperatures in storage tanks.
HVAC and district heating — SPENCE reverse-acting regulators open on temperature drop to provide fail-safe heating in steam-based heating systems.
Industrial steam distribution — SPENCE temperature regulators and steam traps are used in steam headers and branch lines to control flow and remove condensate.
Maintenance and repair — SPENCE repair kits and replacement parts support planned maintenance programs for steam traps and regulators in continuous process plants.
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SPENCE Products

3G Electric supplies SPENCE temperature regulator & duct sensor thermowells. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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