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Threaded Thermowells - Solid or Welded Construction

Thermowells - Threaded Thermowells

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TC – Trusted by U.S. manufacturers, OEMs, and research labs for over 50 years.

Ideal for when an application demands the removal of a sensor without interrupting the process
Our thermowells can either be of welded construction with a parallel sheath or machined from solid with a parallel or tapered sheath
Available in a variety of constructions with either screwed NPT or BSP male process entry. Other threads are available upon request

Custom built in a wide range of sheath materials to meet customer requirements on a prompt delivery
Testing and Certification services include:
ASME PTC 19.3 TW-2010 (wake frequency calculation), pressure testing, MTC’s, X-Ray, dye penetration, full penetration weld and NACE MR0175 (hardness test)
Flanged Thermowells are also available

Thermowells Quote Request Form

1. Thermowell Style

Illustration	Select
WH Welded fabrication Thermowell with male and female threaded connections. Parallel sheath.
SH Machined from solid Thermowell with male and female threaded connections. Tapered or Parallel sheath.
SW Socket Weld style. Machined from solid thermowell, designed to work with socket weld fittings. Tapered, parallel or stepped sheath.

2. Sheath Material

3a. Process Entry Thread

3b. Sensor Entry Thread

4a. Outer Diameter ('P1')

4b. Bore Diameter

5. Insertion Length 'U'
inches

6. Sheath Options

Illustration	Select
Parallel
Tapered
Stepped

7. Taper Details ('P2')

8. Quantity Required

Qty Required

Contact Details

Company Name

Your Name

Title/Dept.

Email

Telephone

Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

Send Enquiry

2	Sheath Material	Operational Properties	Max. Temperature
Standard Sheath Materials
316L	Grade 316L Stainless Steel 18/8/1 Ni/Cr/Molybdenum Stabilised To BS EN 10088, Werkstoff No : 1.4404	Very good corrosion resistance throughout the operating temperature range. Suited to a wide range of industrial applications. Enjoys high ductility.	1470°F
310	Grade 310 Stainless Steel 25/20 Nickel/Chromium To BS EN 10088, Werkstoff No : 1.4845	Good high temperature corrosion resistance and suitable for use in sulphur bearing atmospheres. Has high oxidation resistance.	2010°F
600	Inconel 600* Nickel/Chromium/Iron alloy To BS EN 10095, Werkstoff No : 2.4816	Used in severely corrosive atmospheres to elevated temperatures. Has good resistance to oxidation. Do not use in sulphur bearing atmospheres above 1020°F.	2010°F
800	Incoloy 800* Iron/Nickel/Chromium alloy To BS EN 10095, Werkstoff No : 1.4876	Used in severely corrosive atmospheres to elevated temperatures. Enjoys a good resistance to oxidation and carburisation. Resistant to sulphur bearing atmospheres.	2010°F
820	Incoloy 825* Iron/Nickel/Chromium alloy To BS EN 10204, Werkstoff No : 2.4858	Highly resistant to corrosion & oxidising conditions. particularly useful when used in acidic environments.	2280°F
Specialized Sheath Materials
276	Hastelloy 276* Nickel/Chromium/Iron/Molybdenum To ASTM B574, Werkstoff No : 2.4819	Excellent general corrosion resistance and good fabricability. Highly popular for chemical and petrochemical processing applications.	2280°F
400	Monel 400 Nickel 30% Copper/Iron To BS 3076, Werkstoff No : 2.4360	Particularly resistant to corrosion by seawater, Monel has high strength and toughness over a wide temperature range.	2280°F
PTFE	PTFE Polytetrafluoroethylene	A fluorocarbon based polymer, PTFE offers high chemical resistance, low friction and electrical and thermal insulation over a wider temperature range than most plastics. Perfect for protecting metals against acid attack.	250°C
Other sheath materials are available upon request. * Trade Names