Dixon Valve & Coupling Company, 877-963-4966 2 Check Valve • To control the direction of flow and for quick, automatic reactions to flow change. Swing check valves are used when a minimum resistance to flow is required. • Swing check valves are recommended for use in conjunction with gate valves. They should not be used in a rapid recycling system such as reciprocating pumps or air compressor service where they could cause chatter and damaging vibration. Ball Valve • Can be used for on and off service or throttling • When positive shut-off is necessary • Where a low valve profile is necessary • Only 90° rotation from open to fully closed ( quick opening) • Handle position is a quick indication of whether valve is open or closed. • Full port ball valves do not resist flow Globe Valve • For regulation (throttling) of flow • For frequent operation; short stem travel reduces operator's time. • Where some line resistance is acceptable Butterfly Valve • Where positive shut-off is necessary • Primarily for fully open or fully closed applications • May be used for throttling • Only 90° rotation from open to fully closed • Lightweight • Easy to install • Less costly than an Iron body gate valve Gate Valve • For fully open or fully closed service NOT FOR THROTTLING • For minimum line pressure drop • For minimum fluid entrapment in the line • For relatively infrequent operation • Use Dixon couplings, retention devices and accessory products only for their intended service. • All recommendations of the Hose Manufacturer, and the Coupling Manufacturer, must be employed with regards toSize, Temperature, Application, Media, andPressure when selecting the components for a hose assembly. • All finished hose assemblies should be tested in accordance with theRubber Manufacturers Association recommendations. • All hose assemblies should be thoroughly inspected prior to each use to insure they are undamaged, and properly coupled. • Use safety clips on couplings, and King Safety Cables on assemblies where required by the manufacturer, as well as State and Federal regulations. • Call Dixon (1-877963-4966) for advice on couplings, retention devices, and accessories for your application. SAFETY Valve Selection Guide
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