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Standard Threaded Thermowell for 3/8 Inch Diameter Elements
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USD$1,470.00
3/4-385L-U21/2-BRASS
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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" NPT | 3/4-385L-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" NPT | 1-385L-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 | Brass | 290 (145) | 150 (80) | 54.1 (48) | 27.6 | 16.7 | 11.1 | 8 | 6 |
Carbon Steel | 326 (260) | 192 (144) | 69.5 | 35.4 | 20.5 | 14.3 | 10.3 | 7.7 |
A.I.S.I. 304 & 316 | 349 (360) | 199 | 71.9 | 36.6 | 21.2 | 14.8 | 10.7 | 8 |
Monel | 316 (320) | 189 (178) | 68.1 | 34.8 | 20.8 | 14 | 10 | 7.5 |
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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† All dollar amounts on this site are shown in US currency.
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Part Number Builder |
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Option Descriptions
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(1)
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External thread - NPT
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Select 3/4 for 3/4 in. 1 for 1 in.
(2)
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Insertion length dimension
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Select 21/2 for 2 1/2 in. 41/2 for 4 1/2 in. 71/2 for 7 1/2 in. 101/2 for 10 1/2 in. 131/2 for 13 1/2 in. 191/2 for 19 1/2 in.
(3)
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Material
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Select 304SS for 304 SS 316SS for 316 SS CS for Carbon Steel BRASS for Brass
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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