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HEAVY DUTY THREADED THEROMOWELLS FOR 1/4" DIAMETER ELEMENTS
Model 260TWH - Heavy Duty, Model 260TWHE - 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 | 5300 | 4750 | 1100 | - | - | - | - |
| Carbon Steel | 5950 | 5750 | 5450 | 5250 | 4000 | 1750 | - |
| 304SS | 7800 | 7050 | 6400 | 6150 | 6000 | 5190 | 1875 |
| 316SS | 7800 | 7800 | 7250 | 7100 | 6950 | 5800 | 2720 |
| Monel | 7450 | 6850 | 6150 | 6100 | 5490 | 1750 | - |
| 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"-260TWH and 3/4"-260TWHE | Brass | 305 (97.5) | 93.8 (54.1) | 33.9 | 17.1 | 10.5 | 7.0 | 5.0 | 3.7 |
| Carbon Steel | 386 (175) | 180 (97.2) | 65.3 (58.3) | 33.0 | 20.1 | 13.4 | 9.6 | 7.1 | |
| 304SS; 316SS | 440 (243) | 197 (135) | 71.2 | 36.0 | 22.0 | 14.7 | 10.5 | 7.8 | |
| Monel | 354 (195) | 155 (108) | 56.1 | 28.4 | 17.3 | 11.6 | 7.5 | 5.6 | |
| 1"-260TWH and 1"-260TWHE | Brass | 354 (161) | 108 (89.5) | 39.4 | 19.8 | 12.2 | 8.1 | 5.8 | 4.3 |
| Carbon Steel | 448 (289) | 209 (161) | 75.7 | 38.4 | 23.3 | 15.5 | 11.1 | 8.2 | |
| 304SS; 316SS | 490 (403) | 228 (225) | 82.5 | 41.8 | 25.5 | 17.1 | 12.2 | 9.1 | |
| Monel | 410 (322) | 179 (178) | 65.1 | 33.0 | 20.1 | 13.5 | 8.7 | 6.5 | |
| Note: Values are for steam, air, gas and similar density. Values shown in parenthesis are for water flow only. | |||||||||
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