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Mechanical Science HandbooksMechanical Science Handbooks 20000 Part 2

Tham khảo tài liệu 'mechanical science handbooksmechanical science handbooks 20000 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | TABLE OF CONTENTS DOE-HDBK-1018 2-93 Valves TABLE OF CONTENTS Cont. Manually Operated Plug Valve Installation. 24 Plug Valve Glands . . . 24 Diaphragm Valves . 24 Diaphragm Construction . 25 Diaphragm Valve Stem Assemblies. 27 Diaphragm Valve Bonnet Assemblies . 27 Reducing Valves . 28 Pinch Valves. 30 Pinch Valve Bodies . 31 Butterfly Valves. 31 Butterfly Valve Seat Construction. 32 Butterfly Valve Body Construction. 32 Butterfly Valve Disk and Stem Assemblies . 32 Needle Valves. 33 Needle Valve Applications. 33 Needle Valve Body Designs. 34 Check Valves. 35 Swing Check Valves. 35 Tilting Disk Check Valves. 36 Lift Check Valves . 37 Piston Check Valves. 38 Butterfly Check Valves. 39 Stop Check Valves. 40 Relief And Safety Valves . 40 Pilot-Operated Relief Valves . 42 Summary . 43 VALVE ACTUATORS. 44 Introduction. 44 Manual Fixed and Hammer Actuators . 44 Electric Motor Actuators. 46 Pneumatic Actuators. 47 Hydraulic Actuators . 47 Self-Actuated Valves . 48 Solenoid Actuated Valves . 48 Speed of Power Actuators. 49 Valve Position Indication. 49 Summary . 50 ME-04 Page ii Rev. 0 Valves DOE-HDBK-1018 2-93 LIST OF FIGURES LIST OF FIGURES Figure 1 Basic Parts of a Valve.2 Figure 2 Rising Stems.4 Figure 3 Nonrising Stems.5 Figure 4 Gate Valve .9 Figure 5 Solid Wedge Gate Valve.11 Figure 6 Flexible Wedge Gate Valve.11 Figure 7 Split Wedge Gate Valve .12 Figure 8 Parallel Disk Gate Valve.13 Figure 9 Z-Body Globe Valve.15 Figure 10 Y-Body Globe Valve .16 Figure 11 Angle Globe Valve.17 Figure 12 Typical Ball Valve.19 Figure 13 Plug Valve .21 Figure 14 Straight-Through Diaphragm Valve.24 Figure 15 Weir Diaphragm Valve.26 Figure 16 Variable Reducing Valve.28 Figure 17 Non-Variable Reducing Valve .29 Figure 18 Pinch Valves.30 Figure 19 Typical Butterfly Valve.31 Figure 20 Needle Valve.33 Rev. 0 Page iii ME-04 LIST OF FIGURES DOE-HDBK-1018 2-93 Valves LIST OF FIGURES Cont. Figure 21 Bar-Stock Instrument Valve.34 Figure 22 Swing Check Valve .35 Figure 23 Operation of Tilting .