Standard Threaded Thermowell for 1/4 Inch Diameter Elements

SERIES 260S

Thermowell

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Rugged and Industrial
Materials - Brass, Carbon Steel, Stainless Steel and Aluminum
Insertion Lengths from 2½ to 22½ Inches
Connection Size - 1/2 Inch, 3/4 Inch and 1Inch NPT are standard

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Description

Application:
Standard length, 1/4" stem, bimetal thermometers; #20 gage thermocouple elements; unarmored liquid-in-glass test thermometers. Other temperature-sensing elements having .252 in. maximum diameter.

Connection Size:
1/2", 3/4" 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 260S—General Use

Ext. Th’d, P	Model Number	Stem Lgth. A	Insert. Lgth. U	Shank Dia. Q
1/2" NPT	1/2-260S-U 21/2 -U 41/2 -U 71/2 -U101/2 -U131/2 -U161/2 -U221/2	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	--- 5/8 5/8 5/8 5/8 5/8 5/8
3/4" NPT	3/4-260S-U 21/2 -U 41/2 -U 71/2 -U101/2 -U131/2 -U161/2 -U221/2	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	--- 3/4 3/4 3/4 3/4 3/4 3/4
1" NPT	1-260S-U 21/2 -U 41/2 -U 71/2 -U101/2 -U131/2 -U161/2 -U221/2	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	--- 7/8 7/8 7/8 7/8 7/8 7/8

*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	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	–

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Part Number/Desc.

Qty

Description

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

1/2-260S-U21/2-BRASS

TWD1,726

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 2 1/2" Insertion Length Dimension, Brass

1/2-260S-U21/2-304SS-F

Consult Sales

Availability:

1/2" External Thread NPT, 260S Bore Size, 2 1/2" Insertion Length Dimension, 304 SS

1/2-260S-U221/2-316SS

Consult Sales

Availability:

1/2" External Thread NPT, 260S Bore Size, 2 1/2" Insertion Length Dimension, 304 SS

1/2-260S-U41/2-BRASS

TWD2,465

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 4 1/2" Insertion Length Dimension, Brass

1/2-260S-U41/2-304SS

TWD2,208

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 4 1/2" Insertion Length Dimension,304SS

1/2-260S-U41/2-316SS

TWD3,011

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 4 1/2" Insertion Length Dimension,316SS

1/2-260S-U71/2-304SS

TWD3,330

Availability: 7 weeks

1/2" External Thread NPT, 260S Bore Size, 7 1/2" Insertion Length Dimension,304SS

1/2-260S-U71/2-316SS

TWD4,410

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 7 1/2" Insertion Length Dimension,304SS

1/2-260S-U71/2-316SS

TWD4,410

Availability: 1 week

1/2" External Thread NPT, 260S Bore Size, 7 1/2" Insertion Length Dimension,316SS

1/2-260S-U101/2-304SS

TWD3,786

Availability: 7 weeks

1/2" External Thread NPT, 260S Bore Size, 10 1/2" Insertion Length Dimension, 304 Stainless Steel

1/2-260S-U161/2-304SS

Consult Sales

Availability:

1/2" External Thread NPT, 260S Bore Size, 16 1/2" Insertion Length Dimension, 304 SS

3/4-260S-U41/2-304SS

TWD2,125

Availability: 1 week

3/4" External Thread NPT, 260S Bore Size,4 1/2" Insertion Length Dimension, 304 Stainless Steel

3/4-260S-U71/2-304SS

TWD3,208

Availability: 7 weeks

3/4" External Thread NPT, 260S Bore Size, 7 1/2" insertion Length Dimension, 304 Stainless Steel

3/4-260S-U101/2-304SS

TWD4,000

Availability: 7 weeks

3/4" External Thread NPT, 260S Bore Size, 10 1/2" Insertion Length Dimension, 304 Stainless Steel

1-260S-U101/2-316SS

TWD6,655

Availability: 7 weeks

1" External Thread NPT, 260S Bore Size, 10 1/2" Insertion Length Dimension, 316 Stainless Steel

† All prices on this site are shown in Taiwan Dollars.

(1)		(2)		(3)
	-260S-U		-

Option Descriptions:

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

(2) Insertion Length Dimension select from:
21/2 for 2 1/2 in. Insertion Length
41/2 for 4 1/2 in. Insertion Length
71/2 for 7 1/2 in. Insertion Length
101/2 for 10 1/2 in. Insertion Length
131/2 for 13 1/2 in. Insertion Length
161/2 for 16 1/2 in. Insertion Length
221/2 for 22 1/2 in. Insertion Length

(3) Material select from:
304SS for 304 Stainless Steel
316SS for 316 Stainless Steel
CS for Carbon Steel
BRASS for Brass
ALUMINUM for Aluminum

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