ISA TR75.04.01

Control Valve Position Stability

contributor author	ISA - International Society of Automation
date accessioned	2017-09-04T16:01:15Z
date available	2017-09-04T16:01:15Z
date copyright	01/01/1998 (R 2006)
date issued	2006
identifier other	RKOMACAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;query=author:%22NAVY%20-%20YD%20-%20Naval%20Facilities%20Engineering%20Command%22/handle/yse/64459
description abstract	This document discusses control valve stem position mechanical stability and establishes a measurement criterion for position instability of the valve. Other forms of instability associated with control valves and control systems are not covered. Purpose This document is intended to help the user recognize, measure, and diagnose the unstable motion of a valve. A reference section (Annex A) with abstracts provides further references.
language	English
title	ISA TR75.04.01	num
title	Control Valve Position Stability	en
type	standard
page	22
status	Active
tree	ISA - International Society of Automation:;2006
contenttype	fulltext
subject keywords	actuator forces
subject keywords	control signal
subject keywords	Control valve stem position mechanical stability
subject keywords	deadband
subject keywords	design of the valve closure member
subject keywords	fluid forces
subject keywords	force gradient
subject keywords	hysteresis
subject keywords	maximum amplitude
subject keywords	position instability
subject keywords	pressure balanced.
subject keywords	pressure-balancing
subject keywords	unstable motion