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From Abar Solutions
Automatic Control Valve

...and operation, such as those of the manual on/off, check, throttling or fixed types etc. It will be discovered that even these components are frequently installed improperly throughout the industry. Students will learn how components, such as pressure relief valves, have been developed to meet specific applications, i.e., system back pressure and it s associated potential adverse affects.
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From PDHengineer. com-Decatur Professional Development, LLC
Valve Fundamentals
...tion, operation and relative merits of different types of throttling and shutoff valves, including gate, globe, ball, needle, butterfly, diaphragm, plug and pinch valves Types of check valves, including swing, tilting disk, lift, piston and butterfly check valves. Construction and operating differences of relief valves and safety valves. Construction and principle of operation for
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HVAC Pumps Characteristics and Energy Efficiency
... is controlled by mechanically constricting the flow with throttling valves. This wastes energy. By using a variable speed drives, chilled water flows can be matched to actual heating and cooling demands. This 5-hour course provides the students with a firm understanding of the basic principles that centrifugal pumps operate under. Topics covered include the performance curve, series
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