Power plant and other petrochemical industries do deal with different types of valves. All piping systems are fitted with valves for controlling purposes or safety requirements. Understanding the function of each valve type will have an important reflection on the process quality, equipment and plant reliability, and the economics of the whole activity. Different application needs to select the appropriate valve type of a particular flow characteristic. Operation with the valve also affects the system and the process. Understanding the problems associated with valves is essential for diagnosis and troubleshooting and the needed maintenance of the particular type of valves.
At the end of this seminar participants will have: * An understanding of different parameters affecting the operation of valves * The ability to select the right valve for the particular application * The ability to perform the necessary calculation for valve sizing * An understanding of the problems associated with valves like flashing, slamming and water hammer * The ability to perform troubleshooting of systems involving valves * The ability to decide on the right maintenance plan concerning different types of valves
Day 1
Basics of the Valve Technology
Valves Technology
Types of Valves
Valves Characteristics
Sealing Performance
Flow Characteristics
Day 2
Manual vs. Automatic Valves
Manual Valves
Functions of Manual Valves
Methods of Regulation
Valve Types:
Valve and Connections
Valves Rating
Valves Seating
Types of Manual Valves
Gate Valves
Check Valves
Applications
Types of Check Valves
Check Valves Operation
Selection of Check Valves
Day 3
Relief and Safety Valves: Function and Operation
Relief and Safety Valves
Relief Valve Types
Valve Loading
Safety Valves
Operation of Rupture Discs
Day 4
Valves Troubleshooting
Valves Problem, and Troubleshooting
High Pressure Drop
Cavitation in Valves
Flashing vs. Cavitation
Flow Choking
High Velocities
Water Hammer
Surge Protection
Check Valve Slamming
Noise Problems
Clean Air Standards
Life Loading
Packing for Fugitive-emission Control
Troubleshooting and Control Valves
Control Valves and Actuators
Control Valves Types
Linear Valve Features
Rotary Valve Features
Control Valve Flow Characteristics
Actuation Systems
Types of Actuators
Actuator Performance
Valve Positioner
Operation of Positioners
Day 5
Valve Sizing and Selection
Valve-sizing Criteria for Manual Valves
Valve-sizing criteria for Check Valves
Valve-sizing Criteria for Throttling Valves
Incipient and Advanced Cavitation
Terminal Pressure Drop Ratio
Percent of Flashing
Pressure Recovery Coefficient
Valve Sizing & Selection Procedure
Selecting a Valve Type
Different Valves Characteristics
Examples
Engineers and technicians of mechanical, electrical and chemical engineering will benefit largely from this seminar. Maintenance, operation, and people R and D department are recommended to attend this course.