Vacuum Breakers
4Pages

Protection against collapse or back flowing. Vacuum Breakers Anti-siphoning check valves Vacuum check valves and backflow devices.

Series VB8 Stainless Steel Retainer Tube Stainless Steel Ball Body EPR Seat Stainless Steel Spring Fast acting, tight closing, high capacity Kadant Johnson Vacuum Breakers provide a simple, dependable way to relieve any unwanted vacuum condition that may develop in a closed vessel or pipeline. They can be used to prevent contamination from back flowing in fluid handling systems and to protect equipment against collapse or implosion. They combine tight closing with instant response; provide large air venting capacity; are designed for easy installation and long service life. Positive...

Size Quick Ship No. (Brass) Quick Ship No. (Stainless Steel) Outlet Outlet Size Total Length “L” Engaged Length “E” O.D. of Tube “D” Diameter of Orifice 3/8" – 24A75500 Plain 1/4" 1-1/2" 1-1/8" 9/16" 1/4" 3/8" 24A75200 24A75600 Threaded 1/4" 1-1/2" 1-1/8" 9/16" 1/4" 1/2" 24A75900 24A76300 Plain 3/8" 1-3/4" 1-3/8" 11/16" 9/32" 1/2" 24A76000 24A76400 Threaded 3/8" 1-3/4" 1-3/8" 11/16" 9/32" 3/4" 24A76700 24A77100 Plain 1/2" 2-1/8" 1-5/8" 13/16" 13/32" 3/4" 24A76800 24A77200 Threaded 1/2" 2-1/8" 1-5/8" 13/16" 13/32" 1" 24A77500 24A77900 Plain 3/4" 2-3/8" 1-7/8" 1-1/16" 19/32" 1" 24A77600...

Kadant Johnson Vacuum Breakers Horizontal storage heater with heating coils protected by a Kadant Johnson Vacuum Breaker. Typical Installations of Kadant Johnson Vacuum Breakers Kadant Johnson Vacuum Breaker installed on heating coil. When the modulating control valve closes, the steam in the coil will condense. A vacuum may exist in the coil even with the control valve partly open and positive pressure between the control valve and the coil. Textile dry cans, multiple slasher cylinders, print cans, etc., can be protected against collapse with Kadant Johnson Vacuum Breakers. Typical...