Omega Products 1-260A-U 15-8-304SS User Manual
Series 385A General Purpose Test Well for
3
⁄8" Diameter Elements
Application: Armored liquid-in-glass test
thermometers. #14-gage test thermocouples.
Bimetal test thermometers.
1
Connection Size:
⁄2 NPT external thread is standard.
Lagging Extension: When extra head length
is required to extend through insulation, 21⁄2"
lagging extension is standard.
Series 385A—General Use
1
/
1
2
3
/
4
1
NPT*
/
4
BRASS PLUG & CHAIN
Shown close to actual size.
To Order Visit omega.com/series_385a_260a for Pricing and Details
Model Number Insert Length U Stem Length A
1/2-385A-U2-(*) 2 3
1/2-385A-U4-(*) 4 5
1/2-385A-U6-(*) 6 7
1/2-385A-U8-(*) 8 9
1/2-385A-U10-(*) 10 11
1/2-385A-U12-(*) 12 13
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: 1/2-385A-U4-304SS, 304 SS, 1⁄2 NPT thread
with 0.385" Dia. bore for sensor with 4" insertion length.
U INSERTION LENGTH
1
/
NPT
2
A STEM LENGTH
Dimensions: inches
±0.002
0.385 BORE
Materials: Brass (ASTM B-16), Carbon Steel (C-1018),
A.I.S.I. 304 & A.I.S.I. 316 Stainless Steel.
Other materials available on request.
Cap and Chain:
Captive plug & chain is furnished on all wells as standard.
Velocity Rating – Feet Per Second
Insertion Length—“U”
Material 2 4 6 8 10 12
(74) (37) (24.7) (18.5) (14.8) (12.3)
5
DIA.
/
8
Carbon 422 155 69.1
Steel (156) (78) (52.1)
A.I.S.I. 304 450 162
1
/
4
& 316 (223) (112)
(147) (73.8) (49.2)
Where single values appear in the velocity tables, these may
be considered safe for water, steam, air or gas. In the shorter
insertion lengths, consideration is given to the velocity pressure
effect of water flowing at higher velocities. The values in
parentheses, therefore, represent safe values for water flow,
while the unbracketed values may be used for steam, air, gas
and similar density fluids.
1
⁄4
1
⁄4
1
⁄4
1
⁄4
1
⁄4
1
⁄4
Pressure-Temperature Rating–lb Per Square Inch
Material 70° 200° 400° 600° 800° 1000° 1200°
Brass 2810 2530 440 – – – –
Carbon Steel 3160 3040 2900 2770 2110 920 –
A.I.S.I. 304 4120 3740 3400 3280 3180 2750 990
A.I.S.I. 316 4120 4120 3850 3760 3680 3080 1490
362 115 51.4 28.9 18.5 12.8
Brass
38.9 24.9 17.3
72.2 40.6 26.0 18.1
382 145 64.7
®
Monel
36.4 23.3 16.1
Temperature — °F
Series 260A
Limited Space
Application: Used where short insertion length is
necessary as in short legs of tees, etc. Also fits the
21⁄2" length bimetal thermometer with 1⁄4" stem diameter.
Connection Size: 3⁄4 and 1 NPT external thread.
Materials: Brass (ASTM B-16), Carbon Steel
(C-1018), A.I.S.I. 304 & A.I.S.I. 316 Stainless Steel.
Other materials available on request.
Series 260A
P NPT
0.260 BORE
1
/
2
2
5
/
8
1
1
/
DIA.
2
3
/
16
1
/
NPSM
2
Shown smaller
than actual size.
1
/
16
1
5
/
16
Dimensions: inches
Thermowell for 1⁄4" Diameter Elements
To order, Cap and Chain:
For Brass cap, add suffix “-CC-Brass” to the end of the
model number in your order for additional cost.
For 304 SS cap, add suffix “-CC” to the end of the model
number for additional cost.
External Thread P Model Number
3
⁄4 NPT 3/4-260A-U15/8-(*)
1 NPT 1-260A-U 15/8-(*)
Specify material type “304SS” for 304 stainless steel, “316SS” for 316
*
stainless steel, “CS” for carbon steel or “BRASS” for brass.
Ordering Example: 3/4-260A-U15/8-304SS, 304 SS, 3⁄4 NPT thread
with 0.260" Dia. bore for sensor with 15⁄8" insertion length.
Pressure-Temperature Rating: Use values given for Series 260S Wells
Velocity Rating: Use values given for Series 260S Wells in 2
insertion length column
1
⁄2"
B-33
1
/
4
''
“A”
2
5
/
8
''
“C”
3
/
4
''
1
/
2
NPT
3''
2
1
/
2
''
1
/
4
''
.260''
.375''
.500''
“B”
“A”
“U”
1
1
/
2
''
1
''
7
/
16
''
3
/
8
''
7
/
8
''
7
/
32
''
PLUG
1
/
2
NPT
CHAIN
“T”
“A”
“V”
1
/
4
''
“M”
“P”
“O”
“I”
.100''
“A”
1
1
/
2
''
3
''
7
/
16
''
3
/
8
''
7
/
8
''
7
/
32
''
PLUG
1
/
2
NPT
CHAIN
1
5
/
8
''
3
/
8
''
3
/
4
NP
T
“A”
“M”
“R”
“T”
“V”
“S”
1
5
/
8
''
7
/
16
''
3
/
8
''
7
/
8
''
7
/
32
''
PLUG
1
/
2
1
1
/
4
''
NPT
CHAIN
“A”
“O”
“P”
3''
“R”
.375''
2
1
/
2
''
NPT
1
/
2
.260''
.500''
“A”
1
/
4
''
“O”
“P”
.375''
2
1
/
2
''
.260''
.500''
“A”
1
/
4
''
1.050''
3
3
/
4
''
3''
1
/
2
NPT
3
/
4
''
Custom Thermowells Available!
Protective Coatings for Thermowells:
• Resist Corrosion • For Chemical Baths
• Color-Coded Sensors for Process Control
• Available in PFA, Epoxy and other materials
Please consult Sales Department for complete information
Just a few of
OMEGA’s special and
custom well styles that are
too numerous to list. If you
need a special well visit
Sanitary 3A
Approved Thermowells
Available, Visit
omega.com/
sanitary
omega.com/custom
Discount Schedule
1-10.....................................Net 25-100..............................20%
11-24..................................10% 101 and up..........Consult Sales
Discounts apply to similar thermowells.
3
4
1
PLUG
“C”
1
''
/
2
NPT
5
/
''
2
8
1
''
/
4
“B”
DIA.
7
/
''
“A”
7
''
/
32
16
3
''
/
8
7
''
/
8
Dimensions: inches
5 6
2
B
“O”
“T”
“A”
.100''
“V”
1
“G”
“M”
/
4
“I”
''
7
8
9
B-34
10
Loading...