Download The Valve and Actuator User's Manual
Transcript
The Valve and Actuator User's Manual Edited by Eur. Ing. R. С Whitehouse, BEng, MSc, CEng, MIMechE The British Valve and Actuator Manufacturers' Association m Published by Mechanical Engineering Publications Limited LONDON CONTENTS Foreword Acknowledgements The history of valves Valve terminology Basic valve design Standards for valves Valve selection techniques Linear valves Gate valves Globe valves Diaphragm valves Pinch valves Rotary valves Plug valves Ball valves General purpose butterfly valves High performance butterfly valves Check valves Safety and relief valves Pressure control valves Pressure reducing valves Pressure retaining valves Automatic control valves Miscellaneous valves Ball float valves Solenoid valves Line blind valves Recent developments Bellows-sealed valves Double gland sealed valves Live-loaded gland sealed valves Actuators Valve operating forces Pneumatic actuators Electric actuators Hydraulic actuators Actuators for control valves Installation of valves and actuators Maintenance of valves and actuators Appendix 1 - British Standards for valves and actuators Appendix 2 - SI units for valves Appendix 3 - Conversion tables Appendix 4 - Flow data vii viii 1 3 5 8 13 16 16 22 23 25 31 31 33 39 40 44 46 52 52 52 53 58 58 59 59 63 63 64 65 66 71 75 85 92 97 103 106 107 114 115 121 vi CONTENTS Appendix 5 -- Pressure conversions and equivalents Appendix 6 -- Steam tables (SI units) Appendix 7 -- Face-to-face dimensional reference data Appendix 8 -- Material standards Appendix 9 -- General types of corrosive attack Appendix 10 -- Chemical resistance for plastic lined systems Appendix 11 -- NACE specification Appendix 12 -- ASTM, SAE, and ISO grade markings for fasteners Appendix 13 -- Pipe data Appendix 14 -- Chemical symbols for gases Appendix 15 -- Foreign language glossary Bibliography Index 124 127 132 140 148 159 163 165 170 178 180 183 184