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0.385″ Bore Diameter Threaded Straight Thermowells

Original price was: $50.36.Current price is: $35.25.

Available in Carbon Steel and Stainless Steel
Standard Insertion Lengths from 2 1/2 to 22 1/2 Inches
3/4 Inch and 1 Inch External Diameter

External Thread

Material

Insertion Length

Pressure Rating

Stem length/Probe Length

Clear

SKU: 3/4-385S-U21/2-304SS Categories: Accessories, Protection, Thermowells Tag: Omega Engineering

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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.

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), Stainless Steel A.I.S.I. 304 & A.I.S.I. 316, Monel. Wells are also available in special materials; prices on request.

Series 385S—General Use
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
3/4′ NPT	3/4-385S-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′ NPT	1-385S-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

Pressure-Temperature rating–lb per sq. inch

Material	Temperature — °F
Material	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 385L Thermowell Page For Maximum Fluid Velocity

External Thread	3/4 in NPT, 1 in NPT
Material	304 Stainless Steel, 316 Stainless Steel, Brass, Carbon Steel
Insertion Length	2 1/2 in, 10 1/2 in, 13 1/2 in, 16 1/2 in, 22 1/2 in, 4 1/2 in, 7 1/2 in
Pressure Rating	7000 PSI @ 70 F, 5000 PSI @ 70 F, 5200 PSI @ 70 F
Stem length/Probe Length	4 in, 12 in, 15 in, 18 in, 24 in, 6 in, 9 in
Pipe Size	Not Applicable
Flange Size	Not Applicable
Shank Diameter	49/64 in
Shank Style	Straight
Internal Thread	1/2 in NPSM
Bore Diameter	0.385 in
Well Type	Threaded
Features	Not Applicable