Threaded Vacuum Breaker

The DFT Vacuum Breaker model provides effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate “back-up” when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT Vacuum Breakers are used to break siphons, prevent pipe collapse during transient pressure drops, and to provide addition of air on the downstream side of check valves to dampen water hammer.

Specifications:

• 1" to 4 size
  
• 450 to 6000 CWP
  
• Threaded ends
  
• Unthreaded inlet bore
  
• Stainless Steel Construction
  
• Spring-assisted silent closing
  
• Horizontal or vertical installation
  
• Tight shut-off - lapped disc & seat
  
• Easy maintenance
  
• Versatile