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As a solutions provider, we have vast technical expertise across several market verticals. We follow a systematic approach to identify customer challenges, develop innovative solutions, and ensure that they are expertly planned and flawlessly implemented.
We live by a set of Core Values, which defines who we are. We pledge to listen, learn and be helpful to every customer need; to act honorably and always deliver as promised. Our teams are dedicated to technical excellence so that we can work intelligently to find the right solutions for our customer's needs.
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
The successful combination of the spring action on a round ball and the soft resilient seat assures positive bubble-tight closing, even at very low differential pressures, and of course, the higher the pressure the tighter the seal
Since only slight spring pressure is needed for seating, the ball comes off the soft seat at a very low vacuum condition, providing almost instantaneous protection, sealing is accomplished by an EPR O-ring
The supporting seat, however, is designed to assume any pressure in excess of the small amount needed for sealing, thus preventing any excessive compression of the O-ring
The soft resilient seat, combined with the gentle spring action, provides quiet opening and closing; chatter is completely eliminated
Corrosion-resistant seating surfaces leave little danger of any sticking or leaking, the simple design assures long and dependable service life, as proven both in the laboratory and in the field
Kadant Johnson vacuum breakers have hex heads and standard NPT pipe threads, and are simply threaded into pipe fittings or available tank openings, outlets can be threaded if desired
In exhaustive endurance tests Kadant Johnson vacuum breakers have been subjected to 120 psig of steam and then vacuum, four times a minute and still opened freely and closed bubble tight after a million such test cycles
Kadant Johnson vacuum breakers are rated for use with pressures up to 300 psig and temperatures up to 365 deg F, higher operating pressures are possible, depending upon size, seal materials and temperatures
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