VB Series Vacuum Breakers

Engineering Specifications

VB Series Vacuum Breakers are simple, reliable devices that provide a positive means to automatically relieve or “break” an unwanted vacuum condition. The rugged hex design provides for long service life and ease of installation. Bubble tight seal due to the soft silicon O-ring and spring pressure against the valve.

Typical Vacuum Breaker Applications

  • Air Coils
  • Heating Coils
  • Heat Exchangers
  • Process Air Heater
  • Make-up Air Coils
  • Jacketed Kettles
  • Steam Mains
  • Steam Boilers
  • Storage Heaters
  • Textile Dry Cans
  • One Pipe Steam Non Electric Valve

Models available NPT pipe sizes: 1/8”, 1/4”, 1/2” and 3/4” rated for pressures up to 125 PSIG (8.6 Bar) and temperatures to 350° F (180° C).

Note on Installation

The preferred method of installation is in the Vertical position. Horizontal installation should be used only if no other option is available and only above the water line. The vacuum required to open the valve or its “Break Point” stated is stated as inches of Mercury Hg.