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Series 260WSocket-Weld Design Thermowells for
1
⁄4" Diameter Elements
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.)
Cap and Chain Options:
For Brass cap, add suffix “-CC-Brass” to the end of the
model number when you order for an additional cost.
For 304 SS cap, add suffix “-CC” to the end of the model
number for an additional cost.
Series 260W
Metric Models
3
/
1
4
1
†
/
NPSM
2
P
PIPE SIZE
To Order Visit omega.com/series_260w for Pricing and Details
U INSERTION LENGTH
Q DIA.
A STEM LENGTH
Dimensions: inches
1
2
± 0.002
0.260 BORE
See omega.com
/
2
†
NPSM internal pipe
thread will accept
1
/
DIA.
2
both NPT and NPS
male threads.
1
/
4
Shank Stem Insert
Pipe Size Diameter Length Length
P Model Number Q P A U
Nominal 3/4-260W-U41/2-(*)
(1.050" Diameter) 3 /4 -260W-U71/2-(*)
3/4-260W-U101/2-(*)
3/4-260W-U131/2-(*)
3/4-260W-U161/2-(*)
3/4-260W-U221/2
1" 1-260W-U21/2-(*)
Nominal 1-260W-U41/2-(*)
(1.315" Diameter) 1-260W-U71/2-(*)
1-260W-U101/2-(*)
1-260W-U131/2-(*)
1-260W-U161/2-(*)
1-260W-U221/2
*
for carbon steel or “BRASS” for brass. PFA coating available, see omega.com.
Ordering Example: 3/4-260W-U71/2-304SS, 304 SS thermowell with 3⁄4" pipe outside diameter,
0.260" internal diameter, 71⁄2" insertion length and a 9" stem length.
For Assistance in Choosing Head and Well Assemblies,
See guide on omega.com. These wells are compatible with OMEGA® NB1, NB2;
PR-12, PR-14, and NPT-style probes, as well as DialTemp™ Thermometers.
3
⁄4" 3/4-260W-U21/2-(*)
-(*)
-(*)
Specify material type “304SS” for 304 stainless steel, “316SS” for 316 stainless steel, “CS”
3
⁄4 1.050 4 2
3
⁄4 1.050 6 41⁄2
3
⁄4 1.050 9 71⁄2
3
⁄4 1.050 12 101⁄2
3
⁄4 1.050 15 131⁄2
3
⁄4 1.050 18 161⁄2
3
⁄4 1.050 24 221⁄2
7
⁄8 1.315 4 2
7
⁄8 1.315 6 41⁄2
7
⁄8 1.315 9 71⁄2
7
⁄8 1.315 12 101⁄2
7
⁄8 1.315 15 131⁄2
7
⁄8 1.315 18 161⁄2
7
⁄8 1.315 24 221⁄2
Available!
B
1
⁄2
1
⁄2
Shown
smaller
than
actual
size.
Pressure-Temperature rating–lb per square inch
Material
70° 200° 400° 600° 800° 1000° 1200°
Temperature — °F
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 –
B-28
Increase Response Rate!
Use OT-201 Conductive
Silicon Paste; see omega.com
Discount Schedule
1-10.................Net 25-100.......................20%
11-24......... ....10% 101 and up....Consult Sales
See omega.com for Maximum Fluid Velocity.
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