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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
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

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
Steam condensate removal in industrial process heating — SPENCE inverted-bucket steam traps (e.g., 85-CPG9)
Pressure reduction for steam distribution in commercial buildings — SPENCE D50A pressure regulators
Modulating control of steam flow in heat exchangers — SPENCE pneumatic globe control valves (e.g., K1TC811-36RA)
Air venting from steam mains and headers — SPENCE NAV-213 air vents
Condensate drainage in low-pressure steam heating systems — SPENCE 81S-C1E9 steam traps with strainer
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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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