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SF6 gasAlternative arc quenching and insulating gases

Cylinder Heater Blanket HB 120A

HB120A

Gas type
SF6/C4 

The HB 120A Cylinder Heater Blanket helps maintain proper SF₆ gas vaporization during filling and recovery operations. As SF₆ is withdrawn from a cylinder, the liquid portion cools and can stop converting to gas. The HB 120A wraps around the lower portion of the cylinder and applies controlled heat to prevent freezing. An integrated thermostat prevents overheating, while Velcro® retention straps provide quick and secure installation. For faster gas removal, two heater blankets may be stacked on a single cylinder.

Advantages & functions

  • 500-watt heating capacity
  • Thermostatically controlled for safe operation
  • Prevents SF₆ cylinder freezing during gas withdrawal
  • Easy installation with Velcro® retention straps
  • Helps maximize gas recovery from cylinders
  • Designed specifically for SF₆ gas handling applications
  • Can be used in pairs for faster gas removal

Technical data

Power 500 watts A
Operating voltage 110–127 VAC V
Nominal current 5 A
Frequency 60 Hz
Dimensions (W x H x D) 28 x 10 inch
(711 x 254 mm)
Weight 1 lb
(0.45 kg)