Bulb Thermostats

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  • Direct use on Vulcan heater assemblies
  • Industrial Processes and Equipment
  • Tanks and Vessels
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Vulcan Bulb and Capillary Thermostats provide a convenient method for direct temperature sensing. The control switching can be remotely located away from the sensing bulb process environment. These thermostats are an excellent choice for use with many of Vulcan’s Bushing, Flanged, Over-The-side, and Circulation Heater assemblies.

  • Control switch can be located away from sensor
  • Switching capacity to 30 amperes
  • Capillary tube lengths up to 84″
  • Amperage switching capacity up to 30 amps depending on model and operating voltage
  • Double-pole, single-throw switching is standard
  • Capillary tube length of 84″ with bulb diameters of 1/4″ or 3/8″ depending on model
  • Temperature adjustment ranges of 0 °F (-18 °C) to 100 °F (38 °C), 60 °F (16 °C) to 250 °F (121 °C) or 100 °F (38 °C) to 550 °F (288 °C)

Models and Options

BULB AND CAPILLARY THERMOSTATS

Catalog NumberTemperature
Range Deg F
Temperature
Range Deg C
Bulb Length in.Bulb Length mmBulb Diameter in.Bulb Diameter mmApprox Wt. lbsApprox Wt.kg
N15/3015-10 to 100-18 to 384 5/32105.63/89.50.70.3
N15/3015-260 to 25016 to 1215 5/321311/46.40.70.3
N15/3015-3100 to 55038 to 2887 5/16185.71/46.40.70.3

ADJUSTMENT KNOBS

Catalog NumberFits ThermostatApprox Wt. lbsApprox Wt.kg
N15/4000-10N15/3015-10.10.04
N15/4000-14N15/3015-20.10.04
N15/4000-9N15/3015-30.10.04

METAL HOUSING

Catalog NumberApprox Wt. lbsApprox Wt. kg
N15/4000-10.10.04

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