冯·卡门--空气动力学.pdf

CONTROL VALVE
HANDBOOK
Third Edition
FISHER CONTROLS INTERNATIONAL, INC
Marshalltown, Iowa 50158 .
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461
Copyright  1965, 1998, Fisher Controls International, Inc. All Rights Reserved.
Fisher, Fisher-Rosemount, ENVIRO-SEAL and FIELDVUE are marks ofFisher
Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the
property oftheir respective owners.
Printed in .
02 01 00 99 98
54321
ii
Preface to Third Edition
Control valves are an increasingly ponent of modern manufacturing
around the world. Well–selected and maintained control valves increase efficien-
cy, safety, profitability, and ecology.
The Control Valve Handbook has been a primary reference for more than 30
years. This third edition is plete revision and update that includes vital infor-
mation on control valve performance and the latest technologies.
D Chapter 1 offers an introduction to control valves including definitions for
common control valve and instrumentation terminology.
D Chapter 2 develops the vital topic of control valve performance.
D Chapter 3 covers valve and actuator types.
D Chapter 4 describes digital valve controllers, analog positioners, boosters,
and other control valve accessories.
D Chapter 5 is prehensive guide to selecting the best control valve for
an application.
D Chapter 6 covers the selection and use of special control valves.
D Chapter 7 covers desuperheaters, steam conditioning valves, and turbine
bypass systems.
D Chapter 8 offers typical control valve installation and maintenance proce-
dures.
D Chapter 9 includes information on control valve standards and approval
agencies throughout the world.
D Chapter 10 offers useful tables of engineering reference data.
D Chapter 11 includes piping reference data.
D Chapter 12 is a handy resource mon conversions.
The Control Valve Handbook is both a textbook and a reference on th