Valves and Control Valves Articles

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Articles on Valves and Control Valves

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	Control Valve Actuator Operating Modes
	Control Valve Concepts
	Control Valve Flow Characteristics
	Control Valve Packing
	Control Valve Seat Leakage Classifications
	Control Valve Terminology
	Control Valve Tips & Tricks
	Control Valves - Flow Recovery Coefficient
	Control Valves - Pressure Recovery Factor
	Improving Valve Life and Operating Efficiency The Easy Way Eight often-overlooked valve maintenance basics
	Positioner and Actuator Operating Modes
	Use of Ultrasonic Analysis in the Testing of Isolating Valves Offshore installations use a series of isolation valves to divert the flows from the various pumps. One of the main reasons a pump test can "fail", is if the isolating valves are passing. This article describes testing the isolating valves using ultrasonic analysis. Overhaul of an isolating valve costs significantly less than undertaking an unnecessary pump major overhaul, - requires free Adobe Acrobat Reader for viewing.
	Valve Positioners

Articles on Valves and Control Valves