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0.260" Bore Dia Threaded Heavy Duty Lagging Thermowells

Heavy Duty Threaded Thermowell for 1/4 Inch Diameter Elements

$330.82

Item# 1-260HL-U191/2-304SS

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $330.82
10-24 $314.28
25-49 $307.66
50-99 $294.43
100-199 $287.81
200+ $281.20

In stock

Lead Time (If not in stock): 8 weeks
Heavy Duty Threaded Thermowell for 1/4 Inch Diameter Elements 1-260HL-U191/2-304SS 1-260HL-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 NPT Thread

1-260HL-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
Shank Diameter
Insertion Length
Pressure Rating
Features
Stem length/Probe Length
Pipe Size
Flange Size
Shank Style
Internal Thread
Bore Diameter
Well Type


Application:
Standard length, 1/4' bimetal thermometers. #20 gage thermocouple elements. Unarmored liquid-in-glass test thermometers. Other temperature-sensing elements having .252 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 260HL—Lagging Extension Type
All dimensions in inches.

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

Ext. Th'd PModel No.Lag. Ext.
T
Elem. Lgth.
A
Insert. Lgth.
U
Shank Dia.
Q
3/4' NPT3/4-260HL-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
7/8
7/8
7/8
7/8
7/8
7/8
1' NPT1-260HL-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 1/16
1 1/16
1 1/16
1 1/16
1 1/16
1 1/16


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' - 260H
and
3/4' - 260HL
Brass305 (97.5)93.8 (54.1)33.917.110.5753.7
Carbon Steel386 (175)180 (97.2)65.3 (58.3)3320.113.49.67.1
A.I.S.I. 304 & 316440 (243)197 (135)71.2362214.70.57.8
Monel354 (195)155 (108)56.128.417.311.67.55.6
1' - 260H
and
1' - 260HL
Brass354 (161)108 (89.5)39.419.812.28.15.84.3
Carbon Steel448 (289)209 (161)75.738.423.315.511.18.2
A.I.S.I. 304 & 316490 (403)228 (225)82.541.825.517.112.29.1
Monel410 (322)179 (178)65.13320.113.58.76.5
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.
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What is the maximum pressure rating at 300F for this well?

Asked by: cvsmith87
To better assist you with your application we would like to understand the material you are using for the thermowell and which pipe thread size you require, please contact our Tech Support so we can further assist you. Thank you.
Answered by: Jane
Date published: 2019-04-22
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