Page 6 - Valve Selection Handbook
P. 6
CONTENTS
Preface, xii
1 Introduction 1
Fundamentals, 1. Manual Valves, 2. Check Valves, 2.
Pressure Relief Valves, 2. Rupture Discs, 3. Units of
Measurements, 3. Identification of Valve Size and
Pressure Class, 4. Standards, 4.
2 Fundamentals 5
Fluid Tightness of Valves, 5
Valve Seals, 5. Leakage Criterion, 5. Proving Fluid
Tightness, 6.
Sealing Mechanism, 8
Sealability Against Liquids, 8. Scalability Against Gases, 9.
Mechanism for Closing Leakage Passages, 10.
Valve Seatings, 11
Metal Seatings, 11. Sealing with Sealants, 13.
Soft Seatings, 13.
v
