VA Series Vapor Actuated Dial Thermometer
Specifications
Dial Sixes: | 2", 2 1⁄2", 3 1⁄2", 4 1⁄2" |
Dial: | Aluminum with white finish and black markings |
Pointer: | Furnished standard adjustable |
Movement: | Brass with precision gearing |
Bourdon Tube: | Phosphor bronze |
Accuracy: | Plus or minus one scale division |
Case: | Stainless steel on all front flange and |
| Back flange models in stainless (2"), black steel (3 1⁄2") |
| or Valox (4 1⁄2") |
Process | Plain bulb, 1⁄2" NPT Union, 1⁄2" NPT sliding union |
Connection: | on 12 Connection: bendable extension, or thermowell. |
Window: | Polycarbonate. Glass in 3 1⁄2" and 4 1⁄2" back flange |
| models |
Bulb: | Stainless steel or nickel plated copper. Bulb O.D. 7⁄16" |
| (optional 1⁄4" O.D. x 2" length on |
| only). Bulb lengths vary from 2" to 6" depending on |
| capillary length |
Capillary: | Nickel plated copper, copper with bronze braid |
| armor, stainless steel, stainless steel with stainless |
| steel armor. Capillary lengths 1 to 100 feet (standard |
| length 5 feet) |
Ranges: | Over twenty °F and °F/°C ranges available, from |
| to +450°F |
Applications: | Control panels, chemical processing, pipelines, food |
| processing, OEM applications, ovens, solar heating, |
Vapor actuated thermometers give excellent readings when the bulb temperature is either above or below the temperature of the indicating head. Avoid applications in which the bulb and head are the same temperature (ambient applications). If the bulb “crosses ambient” (i.e., goes from hotter than the indicating
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