Omega Products 1-260S-U101-2-304SS User Manual
Series 260S Standard Threaded Well for
T
-260S
Application:
Standard length,
1
⁄4" stem, bimetal thermometers;
#20-gage thermocouple elements; unarmored
liquid-in-glass test thermometers. Other temperaturesensing elements having 0.252" maximum diameter.
Connection Size:
1
⁄2, 3⁄4 and 1 NPT are standard. Other thread sizes 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
Materials:
Brass (ASTM B-16); Carbon Steel (C-1018); Stainless
Steel A.I.S.I. 304 & A.I.S.I. 316; Monel®. Wells are also
available in special materials; prices on request.
Cap and Chain Options:
For Brass cap, add suffix “-CC-BRASS” to the end of the
model number for additional cost when you order.
For 304 SS cap, add suffix “-CC” to the end of the model
number for additional cost.
1
⁄4" Diameter Elements
B
Series 260S—General Use
3
/
1
1
/
2
NPSM
4
1
THREAD ALLOWANCE
†
P NPT
Dimensions: inches
U INSERTION LENGTH
Q DIA.
A STEM LENGTH
1
/
2
2
0.002
0.260 BORE
†
1
/
NPSM internal
DIA.
2
pipe thread will
accept both NPT
and NPS male threads.
1
/
4
Metric Models
Available!
Visit omega.com
To Order Visit omega.com/series_260s for Pricing and Details
Ext Stem Insert. Shank
Thread P Model Number Length A Length U Dia.Q
1⁄2 NPT 1/2-260S-U21/2-(*) 4 21⁄2 —
1/2-260S-U41/2- (*) 6 41⁄2
1/2-260S-U71/2-(*) 9 71⁄2
1/2-260S-U101/2-(*) 12 101⁄2
1/2-260S-U131/2-(*) 15 131⁄2
1/2-260S-U161/2-(*) 18 161⁄2
1/2-260S-U221/2-(*) 24 221⁄2
3⁄4 NPT 3/4-260S-U21/2-(*) 4 21⁄2 —
3/4-260S-U41/2-(*) 6 41⁄2
3/4-260S-U71/2-(*) 9 71⁄2
3/4-260S-U101/2-(*) 12 101⁄2
3/4-260S-U131/2-(*) 15 131⁄2
3/4-260S-U161/2-(*) 18 161⁄2
3/4-260S-U221/2-(*) 24 221⁄2
1 NPT 1-260S-U21/2-(*) 4 21⁄2 —
1-260S-U41/2-(*) 6 41⁄2
1-260S-U71/2-(*) 9 71⁄2
1-260S-U101/2-(*) 12 101⁄2
1-260S-U131/2-(*) 15 131⁄2
1-260S-U161/2-(*) 18 161⁄2
1-260S-U221/2-(*) 24 221⁄2
Specify material type “304SS” for 304 stainless steel, “316SS” for 316 stainless steel, “CS” for carbon
*
steel or “BRASS” for brass. PFA coating available.
Ordering Example: 3/4-260S-U71/2-304SS, 304 stainless steel thermowell with
0.260" internal diameter, 71⁄2" insertion length and a 9" stem length.
For Assistance in Choosing Head and Well Assemblies, See Guide at omega.com
These wells are compatible with OMEGA® NB1, NB2; PR-12, PR14,
and NPT-style probes; as well as DialTemp™ Thermometers.
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 –
3
⁄4 NPT external thread,
Use OT-201 Conductive Silicon Paste.
1-10..................Net 25-100.......................20%
11-24...............10% 101 and up....Consult Sales
Discounts apply to similar thermowells.
5
⁄8
5
⁄8
5
⁄8
5
⁄8
5
⁄8
5
⁄8
3
⁄4
3
⁄4
3
⁄4
3
⁄4
3
⁄4
3
⁄4
7
⁄8
7
⁄8
7
⁄8
7
⁄8
7
⁄8
7
⁄8
Increase Response Rate!
Discount Schedule
Shown close
to actual size.
B-20
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