VaLves FundamentalS and Maintenance

This book explains: 1.Types of multi-turn valves (gate valve, glove valve, diaphragm valve, pinch valve, needle valve). Key points on multi-turn valves. Identify, uses of quarter-turn valves (butterfly valve, ball valve, and plug valve. Identify, uses of non-return valves (swing, ball, lift, piston, disc, tilting disc, butterfly, and stop) check valves. Foot, relief, safety, solenoid, and control valves. Valve actuators.2.Maintenance machinest: Lapping of valves and Hydro-Testing procedure.3.Maintain Multi -Turn valves (disassemble, inspect, lap, reassemble, and hydrotest), and tools, equipment, and materials used for them.4. Maintain Quarter- Turn valves (disassemble, inspect, lap, reassemble, and hydrotest), and tools, equipment, and materials used for them.5.Maintain a Non-Return Valves disassemble, inspect, lap, reassemble, and hydrotest), and tools, equipment, and materials used for them.6.Maintain a check valve (disassemble, inspect, lap, reassemble, and inspection sheet).7.Questions and Answers for valves.