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IN LINE CHECK VALVES
in-line-check-valves
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Threaded Check Valves
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Wafer Check Valves
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Flanged Check Valves
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Sanitary Check Valves
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Restrictor Check Valves
The DFT® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT® check valves. Cracking pressures are available from 2 to 40 psi. Like the Basic-Check® valve, the Restrictor Check provides reliable, low maintenance service for a wide range of fluids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as couplings, drain elbows, etc. (not provided by DFT®) to form a complete check valve unit ideally suited for a broad range of applications. The RCV should not be considered a substitute for a Pressure Relief Valve.
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Nickel-Aluminum Bronze (NAB) Check Valves
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Butt Weld Check Valves
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Vacuum Breaker Check Valves
DFT® Vacuum Breakers provide 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.
Right image shown below: Two DFT® Vacuum Breakers used in a dry can.
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Repair Kits
Repair Kits
(170)
