Course Details
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Course Description
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.
The Training Course Will Highlight ?
Training Objective
Target Audience
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.
Training Methods
Daily Agenda
Day 1
Basics of the Valve Technology
Valves Technology
Types of Valves
Valves Characteristics
- Sealing Performance
- Leakage Criterion
- Leakage Classifications
- Sealing Mechanisms
- Valve Stem Seals
- Flow Characteristics
- Flow Through Valves
- Valve Flow Characteristics
- Linear & Equal %
Day 2
Manual vs. Automatic Valves
Manual Valves
Functions of Manual Valves
Methods of Regulation
- Valve Types:
- Stopping / Starting Valves
- Control Valves
Valve and Connections
Valves Rating
Valves Seating
- Types of Manual Valves
- Gate Valves
- Plug Valves
- Ball Valves
- Butterfly Valves
- Pinch Valves
- Diaphragm Valves
Check Valves
Applications
- Types of Check Valves
- Lift Check Valves
- Swing Check Valves
- Tilting – disc Check Valves
- Diaphragm 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
- Pressure – relieving Devices
- Automatically operated Valves
- Direct – acting and Piloted Pressure Relief Valves
- Modulating, Full – Lift, and Ordinary Pressure Relief Valves
Valve Loading
Safety Valves
Operation of Rupture Discs
Day 4
Valves Troubleshooting
Valves Problem, and Troubleshooting
High Pressure Drop
- Pressure Recovery Characteristics
- Cavitation in Valves
- Incipient and Choked Cavitation
- Flow Curve Cavitation Index
- Cavitation – Elimination Devices
Flashing vs. Cavitation
Flow Choking
High Velocities
- Water Hammer
- What causes water hammer?
- Water Hammer Calculations
- Solutions of 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
- Quick Opening Characteristics
- Linear & Equal %
Actuation Systems
- Types of Actuators
- Pneumatic piston Actuator
- Electric Motors
- Electrohydraulic Actuators
Actuator Performance
Valve Positioner
Operation of Positioners
- Positioner Calibration
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
Accreditation
BTS attendance certificate will be issued to all attendees completing minimum of 80% of the total course duration.
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