Standard Threaded Well for 1/4" Diameter Elements
Series 260L
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.
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.
Cap and Chain Options:
For Brass cap, add $4 to price and add suffix “CC (Brass)”
to the end of the model number when ordering.
For 304 SS cap, add $7 to the price and add suffix “CC
(304SS)” to the end of the model number.
Series
260L - Lagging Extension Type
All
dimensions in inches
* NPSM internal pipe thread will accept both NPT and NPS
male threads.
To Order (Specify
Model No.) Prices Shown in U.S. Dollars
| Ext.
Th'd P |
Model
No. |
Bore
Size (inch) |
Insertion
Length Dimension |
Stem
Lgth. A* |
Insert
Lgth. U |
Lag.
Ext. T |
Shank
Dia. Q |
|
1/2"
NPT
|
1/2"-260L-U
2 1/2
|
1/2"-260L
|
-U
2 1/2 ( )
|
6
|
2
1/2
|
2
|
-
|
|
1/2"-260L-U
4 1/2
|
1/2"-260L
|
-U
4 1/2 ( )
|
9
|
4
1/2
|
3
|
5/8
|
|
1/2"-260L-U
71/2
|
1/2"-260L
|
-U
7 1/2 ( )
|
12
|
7
1/2
|
3
|
5/8
|
|
1/2"-260L-U
10 1/2
|
1/2"-260L
|
-U
10 1/2 ( )
|
15
|
10
1/2
|
3
|
5/8
|
|
1/2"-260L-U
13 1/2
|
1/2"-260L
|
-U
13 1/2 ( )
|
18
|
13
1/2
|
3
|
5/8
|
|
1/2"-260L-U
19 1/2
|
1/2"-260L
|
-U
19 1/2 ( )
|
24
|
19
1/2
|
3
|
5/8
|
|
3/4"
NPT
|
3/4-260L-U
2 1/2
|
3/4-260L
|
-U
2 1/2 ( )
|
6
|
2 1/2
|
2
|
-
|
|
3/4-260L-U 4 1/2
|
3/4-260L
|
-U 4 1/2 ( )
|
9
|
4 1/2
|
3
|
3/4
|
|
3/4-260L-U 7 1/2
|
3/4-260L
|
-U 7 1/2 ( )
|
12
|
7 1/2
|
3
|
3/4
|
|
3/4-260L-U 10 1/2
|
3/4-260L
|
-U 10 1/2 ( )
|
15
|
10 1/2
|
3
|
3/4
|
|
3/4-260L-U
13 1/2
|
3/4-260L
|
-U 13 1/2 ( )
|
18
|
13 1/2
|
3
|
3/4
|
|
3/4-260L-U 19 1/2
|
3/4-260L
|
-U 19 1/2 ( )
|
24
|
19 1/2
|
3
|
3/4
|
|
1" NPT
|
1-260L-U 2 1/2
|
1-260L
|
-U 2 1/2 ( )
|
6
|
2 1/2
|
2
|
-
|
|
1-260L-U 4 1/2
|
1-260L
|
-U 4 1/2 ( )
|
9
|
4 1/2
|
3
|
7/8
|
|
1-260L-U 7 1/2
|
1-260L
|
-U 7 1/2 ( )
|
12
|
7 1/2
|
3
|
7/8
|
|
1-260L-U 10 1/2
|
1-260L
|
-U 10 1/2 ( )
|
15
|
10 1/2
|
3
|
7/8
|
|
1-260L-U
13 1/2
|
1-260L
|
-U 13 1/2 ( )
|
18
|
13 1/2
|
3
|
7/8
|
|
1-260L-U
19 1/2
|
1-260L
|
-U
19 1/2 ( )
|
24
|
19
1/2
|
3
|
7/8
|
(
) Material – 304 SS, Carbon Steel, etc.
*When ordering probes with NPT fittings, specify this
stem length.
Maximum
Fluid Velocity—feet per second - Introduction to Thermowells
| Well
Type |
Material |
Materials & Prices |
| 2
1/2 |
4
1/2 |
7 1/2
|
10
1/2 |
13
1/2 |
16
1/2 |
19
1/2 |
22
1/2 |
|
1/2"
- 260S
and
1/2" - 260L
|
Brass
|
207
(59.3)
|
75.5
(32.2)
|
27.3
(19.7)
|
13.93
|
8.4
|
5.6
|
4.1
|
3.0
|
|
Carbon
Steel
|
290
(106)
|
105
(59)
|
38.2
(36.3)
|
19.4
|
11.8
|
7.8
|
5.7
|
4.2
|
|
A.I.S.I.
304/316
|
300
(148)
|
109
(82.2)
|
39.5
|
20.1
|
12.2
|
8.1
|
5.9
|
4.4
|
|
Monel
|
261
(118)
|
95
(65.5)
|
34.4
|
17.5
|
10.5
|
7.1
|
5.2
|
3.8
|
|
3/4"
- 260S
and
3/4" - 260L
|
Brass
|
207
(59.3)
|
89.1(39.8)
|
32.2
(23.9)
|
16.4
|
9.9
|
6.6
|
4.8
|
3.6
|
|
Carbon
Steel
|
290
(106)
|
123
(71.2)
|
44.9(42.7)
|
22.8
|
13.8
|
9.3
|
6.7
|
4.9
|
|
A.I.S.I.
304/316
|
300
(148)
|
128
(99.3)
|
46.4
|
23.6
|
14.3
|
9.6
|
6.9
|
5.1
|
|
Monel
|
261
(118)
|
112
(79.8)
|
40.6
|
20.7
|
12.4
|
8.3
|
6.1
|
4.5
|
|
1"
- 260S
and
1" - 260L
|
Brass
|
207 (59.3)
|
102 (47.6)
|
37.0 (28)
|
18.8
|
11.4
|
7.6
|
5.5
|
4.1
|
|
Carbon Steel
|
290 (106)
|
143 (84.3)
|
51.6 (50.6)
|
26.2
|
15.9
|
10.6
|
7.6
|
5.7
|
|
A.I.S.I.
304/316
|
300 (148)
|
148 (117)
|
53.5
|
27.2
|
16.5
|
11.0
|
7.9
|
5.9
|
|
Monel
|
261 (118)
|
128 (93.3)
|
46.7
|
23.7
|
14.4
|
9.5
|
6.9
|
5.1
|
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.
|
|
|
|
† All dollar amounts on this site are shown in US currency.
|
|
 |
|
|
|
|
 |
 |
 |
 |
Part Number Builder |
|
|
|
|
 |
|
|
|
|
Option Descriptions
|
|
(1)
|
External Thread NPT
|
| |
Select
1/2 for 1/2 Inch NPT
3/4 for 3/4 Inch NPT
1 for 1Inch NPT
|
(2)
|
Insertion Length Dimension
|
| |
Select
21/2 for 2 1/2 inches
41/2 for 4 1/2 inches
71/2 for 7 1/2 inches
101/2 for 10 1/2 inches
131/2 for 13 1/2 inches
191/2 for 19 1/2 inches
|
(3)
|
Material
|
| |
Select
Brass for Brass (ASTM B-16)
CS for Carbon Steel (C-1018)
304SS for Stainless Steel A I S I 304
316SS for Stainless Steel A I S I 316
|
| NOTE: All combinations may not be valid, check spec sheet for valid part numbers. |
| |
|
|
 |
|
|
|
|
Keywords:Standard Threaded Thermowell for 1/4 Inch Diameter Elements
|
Back to top |
|
|