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Heavy Duty Threaded Thermowell for 3-8 Inch Diameter Elements
SERIES 385H
PLACE ORDER - Available in Carbon Steel and Stainless Steel
- Standard Insertion Lengths from 2 1/2 to 22 1/2 Inches
- 1 Inch external thread - NPT
Description
Description
Application:
Standard length, 3/8" stem, bimetal thermometers. #14gage thermocouple elements. Armored liquid-in-glasstest thermometers. Other temperature-sensingelements having .377 in. maximum diameter.
Connection Size:
1" NPT is standard. Other thread sizes are availableupon 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), StainlessSteel A.I.S.I. 304 & A.I.S.I. 316, Monel. Wells are alsoavailable in special materials; prices on request.
Series 385H—General Use External Thread “P ”– 1" NPT
All dimensions in inches.
* NPSM internal pipe thread will accept both NPT and NPS male threads.
External Thread
P | Model No. | Elem. Lgth.
A | Insert. Lgth.
U | Shank Dia.
Q |
1"
NPT | 1-385H-U 2 1/2
-U 4 1/2
-U 7 1/2
-U10 1/2
-U13 1/2
-U16 1/2
-U22 1/2 | 4
6
9
12
15
18
24 | 2 1/2
4 1/2
7 1/2
10 1/2
13 1/2
16 1/2
22 1/2 | 1 1/16
1 1/16
1 1/16
1 1/16
1 1/16
1 1/16
1 1/16 |
Pressure-Temperature rating–lb per sq. inch
| Material | Temperature — °F |
| 70° | 200° | 400° | 600° | 800° | 1000° | 1200° |
| 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 | – |
| See 385HL Thermowell Page For Maximum Fluid Velocity |
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