Standard Threaded Thermowell for 3/8 Inch Diameter Elements

SERIES 385L

^£36.86 3/4-385L-U21/2-BRASS

PLACE ORDER

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

Thermowells and Head and Well Assemblies - View related products

Description

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”
Well Type	Material	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

Place Order(Specify Model Number)

Part Number/ Desc.

Qty

Description

Example part numbers are shown below. For additional configurations see the Part Number Builder below this table.

3/4-385L-U21/2-BRASS

£36.86

Availability: 2 weeks

Standard Threaded Well, External Thread - NPT 3/4", Insertion Length Dimension 2 1/2", Brass

3/4-385L-U41/2-304SS

£65.57

Availability: 10 weeks

Standard Threaded Well, External Thread - NPT 3/4", Insertion Length Dimension 4 1/2", 304 SS

1-385L-U101/2-CS

Consult Sales

Availability:

Standard Threaded Well, External Thread - NPT 1", Insertion Length Dimension 10 1/2", Carbon Steel

† All amounts shown in EUR, GBP, or USD

Part Number Builder

Build Your Part Number Below

(1)		(2)		(3)
	-385L-U		-

Option Descriptions:

(1) External thread - NPT select from:
3/4 for 3/4 in.
1 for 1 in.

(2) Insertion length dimension select from:
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) Material select from:
304SS for 304 SS
316SS for 316 SS
CS for Carbon Steel
BRASS for Brass

Note: All combinations may not be valid, check spec sheet for valid part numbers.