HEAVY DUTY THREADED THEROMOWELLS FOR 3/8" DIAMETER ELEMENTS

Model 385TWH - Heavy Duty, Model 385TWHE - Heavy Duty with Lagging Extension
Please Note:
Tel-Tru data on Thermowell performance is from industry standards in common use by design engineers and other manufacturers. Tel-Tru is not responsible for errors resulting from omission, transmission, transposition, printing, or interpretation of such data.

PRESSURE - TEMPERATURE RATING - PSI
Temperature - °F
Material 70° 200° 400° 600° 800° 1000° 1200°
Brass 5000 4200 1000 - - - -
Carbon Steel 5200 5000 4800 4600 3500 1500 -
304SS 7000 6200 5600 5400 5200 4500 1650
316SS 7000 7000 6400 6200 6100 5100 2500
Monel 6500 6000 5400 5300 5200 1500 -

MAXIMUM FLUID VELOCITY - FEET PER SECOND
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" - 385TWH
and
3/4" - 385TWHE
Brass 276
(127)
124
(79)
44 22 13 8 6 4
Carbon Steel 352
(228)
191
(114)
68 35 21 14 10 7.5
304SS; 316SS 415
(299)
203
(154)
73.2 37.3 22.5 15 11 8
Monel 340
(255)
172
(134)
62 31 19 12.8 8 6
1" - 385TWH
and
1" - 385TWHE
Brass 321
(150)
129
(83.5)
46.8 23.6 14.5 9.6 6.9 5.1
Carbon Steel 410
(270)
249
(150)
90.3 45.6 27.8 18.5 13.2 9.8
304SS; 316SS 483
(350)
272
(208)
97.3 49.7 30.4 20.3 14.5 10.7
Monel 396
(306)
214
(167)
77.5 39.2 23.8 16 10.3 7.7
Note: Values are for steam, air, gas and similar density.
Values shown in parenthesis are for water flow only.
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