Welcome to our new website, found an issue or bug? Please report it here

SERIES-260W
0.260 in Bore Diameter Socket-Weld Design Thermowells
Models In Stock
- Standard Insertion Lengths from 2 1/2 to 22 1/2 Inches
- Available in Stainless Steel, Carbon Steel and Brass
- Compatible with OMEGA™ NB1, NB2, PR12, PR14, and NPT-style probes, as well as DialTempTM Thermometers
SERIES-260W
From
$
46.81
Models In Stock

Product Overview
- Bore Diameter 0.26 in
- Flange Diameter 0 in
- Pipe Size, Max 1.05 in
- Process Temperature, Max 1200 °F
- Process Temperature, Min 70 °F
- Well Type Socket Weld
Application:
260W series fits standard length 1/4' diameter elements. 385W series fits standard length 3/8' diameter elements.
Connection:
3/4' or 1' nominal pipe size welding shoulder fits ASA welding fittings, flanges, etc. Wells for larger pipe size fittings are available upon request.
Materials:
Carbon Steel (C-1018); A.I.S.I. 304 & A.I.S.I. 316 are standard. Other materials are available upon request.
Protective Coatings for Thermowells:
• Resist Corrosion
• For Chemical Baths
• Color-Coded Sensors for Process Control
• Available in PFA, Epoxy and other materials
Consult Sales Department for complete information
Lagging Extension:
When specifying lagging extension, choose a length which will permit the use of a standard element length. (See 260L and 385L lengths.)
Series 260W
All dimensions in inches.
![]()
* NPSM internal pipe thread will accept both NPT and NPS male threads.
Pressure-Temperature rating–lbs. per sq. inch
260W series fits standard length 1/4' diameter elements. 385W series fits standard length 3/8' diameter elements.
Connection:
3/4' or 1' nominal pipe size welding shoulder fits ASA welding fittings, flanges, etc. Wells for larger pipe size fittings are available upon request.
Materials:
Carbon Steel (C-1018); A.I.S.I. 304 & A.I.S.I. 316 are standard. Other materials are available upon request.
Protective Coatings for Thermowells:
• Resist Corrosion
• For Chemical Baths
• Color-Coded Sensors for Process Control
• Available in PFA, Epoxy and other materials
Consult Sales Department for complete information
Lagging Extension:
When specifying lagging extension, choose a length which will permit the use of a standard element length. (See 260L and 385L lengths.)
Series 260W
All dimensions in inches.
* NPSM internal pipe thread will accept both NPT and NPS male threads.
Pipe Size P | Model No. | Shank Dia. Q | P | Stem Lgth. A | Insert. Lgth. U |
3/4' Nominal (1.050' Dia.) | 3/4-260W-U 2 1/2 -U 4 1/2 -U 7 1/2 -U10 1/2 -U13 1/2 -U16 1/2 -U22 1/2 | 3/4 3/4 3/4 3/4 3/4 3/4 3/4 | 1.050 1.050 1.050 1.050 1.050 1.050 1.050 | 4 6 9 12 15 18 24 | 2 1/2 4 1/2 7 1/2 10 1/2 13 1/2 16 1/2 22 1/2 |
1' Nominal (1.315' Dia.) | 1-260W-U 2 1/2 -U 4 1/2 -U 7 1/2 -U10 1/2 -U13 1/2 -U16 1/2 -U22 1/2 | 7/8 7/8 7/8 7/8 7/8 7/8 7/8 | 1.315 1.315 1.315 1.315 1.315 1.315 1.315 | 4 6 9 12 15 18 24 | 2 1/2 4 1/2 7 1/2 10 1/2 13 1/2 16 1/2 22 1/2 |
Pressure-Temperature rating–lbs. per sq. inch
Material | Temperature — °F | ||||||
70° | 200° | 400° | 600° | 800° | 1000° | 1200° | |
Brass | 5000 | 4200 | 1000 | – | – | – | – |
Carbon Steel | 5200 | 5000 | 4800 | 4600 | 3500 | 1500 | – |
A.I.S.I. 304 | 7000 | 6200 | 5600 | 5400 | 5200 | 4500 | 1650 |
A.I.S.I. 316 | 7000 | 7000 | 6400 | 6200 | 6100 | 5100 | 2500 |
Monel | 6500 | 6000 | 5400 | 5300 | 5200 | 1500 | – |
PDFs & Manuals
Show Ratings & Reviews
Rated 5 out of
5
by
Vicki Brown from
Great
Works great on our Kettles. With these installed it has improved our cook times.
Date published: 2024-12-05
Rated 5 out of
5
by
Anonymous from
I am the quality control manager
My client was very happy with the choice I made for him on the project we were doing
Date published: 2021-03-17
Are there a list of compatible thermocouple probes to use with these wells? Is there one that is used with a 1/2 NPT plug style connection? (threaded on one side, flat on the other)
Thank you for your inquiry. These thermowells are supposed to be used with our NB series thermocouple probes with industrial heads. For more questions, please email temp@omega.com or call 1-888-826-6342.
Date published: 2023-05-22