THERMOWELLS

0.260" Bore, Threaded - Tapered Shank

260 TT


PROCESS SIZE 3/4" NPT 1" NPT
Shank O.D. 7/8" 1-1/16"
Hex Size 1-1/8" 1-3/8"


LIMIT PRESSURE (lbs/in2) vs TEMPERATURE (¡ÆF)
MATERIAL CODE TEMPERATURE - ¡ÆF
70 200 400 600 800 1000 1200
Brass BR 5300 4750 1100 - - - -
Carbon Steel CS 5900 5750 5450 5250 4000 1750 -
A.I.S.I. 304 304 7800 7050 6400 6150 6000 5190 1875
A.I.S.I. 316 316 7800 7800 7250 7100 6950 5200 2720
Monel MON 7450 6850 6150 6100 5940 1750 -


LIMIT FLUID VELOCITY (ft/sec) vs LENGTH (inches)
PROCESS
SIZE
MATERIAL CODE IMMERSION LENGTH - "L"
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" NPT BRASS BR 305
(97.5)
93.8
(54.1)
33.9 17.1 10.5 7.0 5.0 3.7
CARBON STEEL CS 386
(175)
180
(97.2)
65.3
(58.3)
33.0 20.1 13.4 9.6 7.1
A.I.S.I. 304
& 316
304
316
440
(243)
197
(135)
71.2 36.0 22.0 14.7 10.5 7.8
MONEL MON 354
(195)
155
(108)
56.1 28.4 17.3 11.6 7.5 5.6
1" NPT BRASS BR 354
(161)
108
(89.5)
39.4 19.8 12.2 8.1 5.8 4.3
CARBON STEEL CS 448
(289)
209
(161)
75.7 38.4 23.3 15.5 11.1 8.2
A.I.S.I. 304
& 316
304
316
490
(403)
228
(225)
82.5 41.8 25.5 17.1 12.2 9.1
MONEL MON 410
(322)
179
(178)
65.1 33.0 20.1 13.5 8.7 6.5

For more information regarding Protecting Tubes and Thermowells,
Consult your Marlin Catalog, pages D-0 to D-13.

If you do not have a Marlin Catalog - Click Here!

 
 

THERMOWELLS

0.260" Bore, Threaded - Reduced Diameter

260 TR

 



PROCESS SIZE 1/2" NPT 3/4" NPT 1" NPT
Shank O.D. 5/8" 3/4" 7/8"
Hex Size 1-1/8" 1-1/8" 1-3/8"


LIMIT PRESSURE (lbs/in2) vs TEMPERATURE (¡ÆF)
MATERIAL CODE TEMPERATURE - ¡ÆF
70 200 400 600 800 1000 1200
Brass BR 5000 4200 1000 - - - -
Carbon Steel CS 5200 5000 4800 4600 3500 1500 -
A.I.S.I. 304 304 7000 6200 5600 5400 5200 4500 1650
A.I.S.I. 316 316 7000 7000 6400 6200 6100 5100 2500
Monel MON 6500 6000 5400 5300 5200 1500 -

 

LIMIT FLUID VELOCITY (ft/sec) vs LENGTH (inches)
PROCESS
SIZE
MATERIAL CODE IMMERSION LENGTH - "L"
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" NPT BRASS BR 207
(59.3)
75.5
(32.2)
27.3
(19.7)
13.9 8.4 5.6 4.1 3.0
CARBON STEEL CS 290
(106)
105
(59)
38.2
(36.3)
19.4 11.8 7.8 5.7 4.2
A.I.S.I. 304
& 316
304
316
300
(148)
109
(82.2)
39.5 20.1 12.2 8.1 5.9 4.4
MONEL MON 261
(118)
95
(65.5)
24.4 17.5 10.5 7.1 5.2 3.8
3/4" NPT BRASS BR 307
(59.3)
89.1
(39.8)
32.2
(23.9)
16.4 9.9 6.6 4.8 3.6
CARBON STEEL CS 290
(106)
123
(71.2)
44.9
(42.7)
28.4 13.8 9.3 6.7 4.9
A.I.S.I. 304
& 316
304
316
300
(148)
128
(99.3)
46.4 23.6 14.3 9.6 6.9 5.1
MONEL MON 261
(118)
112
(79.8)
40.6 20.7 12.4 8.3 6.1 4.5
1" NPT BRASS BR 207
(59.3)
102
(47.6)
37.0
(28)
18.8 11.4 7.6 5.5 4.1
CARBON STEEL CS 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
304
316
300
(148)
148
(117)
53.5 27.2 16.5 11.0 7.9 5.9
MONEL MON 216
(118)
128
(93.3)
46.7 23.7 14.4 9.5 6.9 5.1

For more information regarding Protecting Tubes and Thermowells
Consult your Marlin Catalog, pages D-0 to D-13.

If you do not have a Marlin Catalog - Click Here!

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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