Kadant Johnson Vacuum Breakers provide simple, dependable way to relieve unwanted vacuum which may develop in a closed vessel or pipeline. They can be used to prevent contamination from back siphonage in fluid handling systems, and to protect equipment against collapse or implosion. Vacuum breakers range in size from 3/8" to 1 1/2". They are available in stainless steel and brass materials and rated up to 300 psig and 365 degrees F.
