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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
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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This SPENCE cast iron pressure regulator features 3/8 inch FNPT x FNPTF connections and an adjustable outlet pressure range of 2 to 30 psi. It is designed for general purpose use in steam, air, or gas systems, operating at temperatures from 33°F to 400°F. Typical applications include pressure reduction and stabilization in industrial piping, steam heating, and process control
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This SPENCE cast iron pressure regulator features 3/8 inch FNPT x FNPTF connections and an adjustable outlet pressure range of 2 to 30 psi. It is designed for general purpose use in steam, air, or gas systems, operating at temperatures from 33°F to 400°F. Typical applications include pressure reduction and stabilization in industrial piping, steam heating, and process control
Cast iron general purpose pressure regulator with 3/8 in FNPT x FNPTF connections. Rated for 40 psi to 110 psi and 33°F to 400°F. Used to reduce and stabilize downstream pressure in steam, air, or liquid systems for industrial heating, process control, and plant utility lines
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Cast iron general purpose pressure regulator with 3/8 in FNPT x FNPTF connections. Rated for 40 psi to 110 psi and 33°F to 400°F. Used to reduce and stabilize downstream pressure in steam, air, or liquid systems for industrial heating, process control, and plant utility lines
Cast iron general purpose pressure regulator with 3/4 in FNPT x FNPTF connections. Reduces and maintains downstream pressure in steam, air, or liquid systems. Pressure range 2 psi to 20 psi; temperature range 33°F to 400°F
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Cast iron general purpose pressure regulator with 3/4 in FNPT x FNPTF connections. Reduces and maintains downstream pressure in steam, air, or liquid systems. Pressure range 2 psi to 20 psi; temperature range 33°F to 400°F
This cast iron pressure regulator reduces and maintains downstream pressure in steam, air, or liquid systems. It features 2 in FNPT x FNPTF connections, a pressure range of 10 psi to 60 psi, and a temperature range of 33°F to 400°F. Suitable for industrial process control, heating systems, and plant utility lines
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This cast iron pressure regulator reduces and maintains downstream pressure in steam, air, or liquid systems. It features 2 in FNPT x FNPTF connections, a pressure range of 10 psi to 60 psi, and a temperature range of 33°F to 400°F. Suitable for industrial process control, heating systems, and plant utility lines
Cast iron general purpose pressure regulator with 3/8 inch FNPT x FNPTF connections. Adjustable outlet pressure range from 2 psi to 30 psi, suitable for temperatures from 33°F to 400°F. Used to reduce and maintain downstream pressure in steam, air, or liquid systems for industrial process control, heating, and plant utility lines
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Cast iron general purpose pressure regulator with 3/8 inch FNPT x FNPTF connections. Adjustable outlet pressure range from 2 psi to 30 psi, suitable for temperatures from 33°F to 400°F. Used to reduce and maintain downstream pressure in steam, air, or liquid systems for industrial process control, heating, and plant utility lines
Cast iron general purpose pressure regulator with 1/2 inch FNPT x FNPTF connections. Designed to reduce and stabilize pressure in steam, air, or gas systems. Rated for inlet pressures from 30 psi to 125 psi and operating temperatures from 33°F to 400°F. Suitable for use in industrial piping systems such as steam distribution and process control
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Cast iron general purpose pressure regulator with 1/2 inch FNPT x FNPTF connections. Designed to reduce and stabilize pressure in steam, air, or gas systems. Rated for inlet pressures from 30 psi to 125 psi and operating temperatures from 33°F to 400°F. Suitable for use in industrial piping systems such as steam distribution and process control

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Threaded thermowell for temperature regulators and duct sensors, constructed of stainless steel. Designed for use with a 13 3/8 in stem length and 10 1/2 in insertion length. Rated for a maximum operating pressure of 250 psi and a maximum operating temperature of 400°F. Commonly used in industrial piping systems to protect temperature sensors and allow replacement without system shutdown
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Threaded thermowell for temperature regulators and duct sensors, constructed of stainless steel. Designed for use with a 13 3/8 in stem length and 10 1/2 in insertion length. Rated for a maximum operating pressure of 250 psi and a maximum operating temperature of 400°F. Commonly used in industrial piping systems to protect temperature sensors and allow replacement without system shutdown
Brass threaded thermowell for use with temperature sensors in piping systems. Accommodates stems of 15-5/8 in length and 1 in diameter. Rated for 250 psi maximum operating pressure and 400°F maximum operating temperature. Suitable for protecting sensors in HVAC ducts, boilers, and process lines
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Brass threaded thermowell for use with temperature sensors in piping systems. Accommodates stems of 15-5/8 in length and 1 in diameter. Rated for 250 psi maximum operating pressure and 400°F maximum operating temperature. Suitable for protecting sensors in HVAC ducts, boilers, and process lines
Threaded thermowell for use with temperature regulators and duct sensors. Accommodates a 15 5/8 in stem length with a 12 1/2 in insertion length. Rated for maximum operating pressure of 250 psi and maximum operating temperature of 400°F. Suitable for protecting sensors in piping systems
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Threaded thermowell for use with temperature regulators and duct sensors. Accommodates a 15 5/8 in stem length with a 12 1/2 in insertion length. Rated for maximum operating pressure of 250 psi and maximum operating temperature of 400°F. Suitable for protecting sensors in piping systems