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0.385" Bore Dia Threaded Lagging Extension Thermowells

Standard Threaded Thermowell for 3/8 Inch Diameter Elements

$249.36

Item# 1-385L-U191/2-304SS

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $249.36
10-24 $236.89
25-49 $231.90
50-99 $221.93
100-199 $216.94
200+ $211.96

In stock

Lead Time (If not in stock): 4 weeks
Standard Threaded Thermowell for 3/8 Inch Diameter Elements 1-385L-U191/2-304SS 1-385L-U191/2-304SS
  • Available in Carbon Steel and Stainless Steel
  • Standard Insertion Lengths from 2 1/2 to 19 1/2 Inches
  • 3/4 Inch and 1 Inch External Diameter

1-385L-U191/2-304SS Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

External Thread
Material
Insertion Length
Pressure Rating
Features
Stem length/Probe Length
Pipe Size
Flange Size
Shank Diameter
Shank Style
Internal Thread
Bore Diameter
Well Type


Application:
Standard length, 3/8' stem, bimetal thermometers. #14 gage thermocouple elements. Armored liquid-in-glass test thermometers. Other temperature-sensing elements having .377 in. maximum diameter.

Connection Size:
3/4' NPT and 1' NPT are standard. Other thread sizes are available upon request.

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.


Series 385L—Lagging Extension Type
All dimensions in inches.

* NPSM internal pipe thread will accept both NPT and NPS male threads.


External Thread
P
Model No.Lag. Ext.
T
Elem. Lgth.
A
Insert. Lgth.
U
3/4' NPT3/4-385L-U 2 1/2
        -U 4 1/2
        -U 7 1/2
        -U10 1/2
        -U13 1/2
        -U19 1/2
2
3
3
3
3
3
6
9
12
15
18
24
2 1/2
4 1/2
7 1/2
10 1/2
13 1/2
19 1/2
1' NPT1-385L-U 2 1/2
        -U 4 1/2
        -U 7 1/2
        -U10 1/2
        -U13 1/2
        -U19 1/2
2
3
3
3
3
3
6
9
12
15
18
24
2 1/2
4 1/2
7 1/2
10 1/2
13 1/2
19 1/2


Maximum Fluid Velocity—feet per second
Well Type Material Insertion Length – “U”
2 1/2 4 1/2 7 1/2 10 1/2 13 1/2 16 1/2 19 1/2 22 1/2
3/4' - 385S
and
3/4' - 385L
Brass290 (145)150 (80)54.1 (48)27.616.711.186
Carbon Steel326 (260)192 (144)69.535.420.514.310.37.7
A.I.S.I. 304 & 316349 (360)19971.936.621.214.810.78
Monel316 (320)189 (178)68.134.820.814107.5
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.
See 385S Thermowell Page for Pressure-Temperature Ratings
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