General Purpose Test Wells and Limited Space Wells

SERIES 385A and 260A

^AUD80.00 1/2-385A-U2-BRASS

Description

Series 385A

Application:
Armored liquid-in-glass test thermometers. #14 gage test thermocouples. Bimetal test thermometers.

Connection Size:
1/2" NPT external thread is standard.

Lagging Extension:
When extra head length is required to extend through insulation, 2 1/2" lagging extension is standard.

Materials:
Brass (ASTM B-16), Carbon Steel (C-1018), A.I.S.I. 304 & A.I.S.I. 316 Stainless Steel. Other materials available on request.

Cap and Chain: Captive plug & chain is furnished on all wells as standard.

Series 385A—General Use

All dimensions in inches

Velocity Rating – feet per second

Material	Insertion Length—“U”
Material	2	4	6	8	10	12
Brass	362 (74)	115 (37)	51.4 (24.7)	28.9 (18.5)	18.5 (14.8)	12.8 (12.3)
Carbon Steel	422 (156)	155 (78)	69.1 (52.1)	38.9	24.9	17.3
A.I.S.I. 304 & 316	450 (223)	162 (112)	72.2	40.6	26	18.1
Monel	382 (147)	145 (73.8)	64.7 (49.2)	36.4	23.3	16.1

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.

Model Number	Insert. Lgth. U	Stem. Lgth. A
1/2-385A-U 2* -U 4* -U 6* -U 8* -U10* -U12*	2 4 6 8 10 12	3 1/4 5 1/4 7 1/4 9 1/4 11 1/4 13 1/4

* Material – 304 SS, Carbon Steel, etc.

Pressure-Temperature rating–lb per sq. inch

Material	Temperature — °F
Material	70°	200°	400°	600°	800°	1000°	1200°
Brass	2810	2530	440	–	–	–	–
Carbon Steel	3160	3040	2900	2770	2110	920	–
A.I.S.I. 304	4120	3740	3400	3280	3180	2750	990
A.I.S.I. 316	4120	4120	3850	3760	3680	3080	1490

Series 260A

Application:
Used where short insertion length is necessary as in short legs of tees, etc. This well also fits the 2 1/2" length bimetal thermometer with 1/4" stem diameter.

Connection Size:
3/4" NPT and 1" NPT external thread.

Standard Materials:
Brass (ASTM B-16), Carbon Steel (C-1020), A.I.S.I. 304 & A.I.S.I. 316, Monel.

Series 260A

All dimensions in inches

External Thread P	Model Number
3/4"NPT 1"NPT	3/4-260A-U15/8* 1-260A-U15/8*

* Material – 304 SS, Carbon Steel, etc.

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Part Number/ Desc.

Qty

Description

1/2-385A-U2-304SS

AUD89.00

Availability: 1 week

General purpose test well for 3/8" Diameter elements

1/2-385A-U4-304SS

AUD105.00

Availability: 3 weeks

General purpose test well for 3/8" Diameter elements

1/2-385A-U6-304SS

AUD128.00

Availability: 9 weeks

General purpose test well for 3/8" Diameter elements

3/4-260A-U15/8-304SS

AUD76.18

Availability: 1 week

Limited space thermowell for 1/4" diameter elements

3/4-260A-U15/8-316SS

AUD103.00

Availability: 1 week

Limited space thermowell for 1/4" diameter elements

1-260A-U15/8-BRASS

AUD71.00

Availability: 9 weeks

Limited space thermowell for 1/4" diameter elements

† All amounts shown in AUD

Part Number Builder

Build Your Part Number Below

(1)		(2)		(3)		(4)
	-		-U		-

Option Descriptions:

(1) External Thread - NPT select from:
1/2 for 1/2 NPT
3/4 for 3/4 NPT
1 for 1 NPT

(2) Bore Size - inch select from:
385A for 385 in.
260A for 260 in.

(3) Insertion Length Dimension select from:
2 for 2 in.
4 for 4 in.
6 for 6 in.
8 for 8 in.
10 for 10 in.
12 for 12 in.
15/8 for 1 5/8 in.

(4) Material select from:
304SS for 304 SS
316SS for 316 SS
BRASS for Brass
CS for Carbon Steel

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