Course Details
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Course Description
In most of oil and gas industries, petrochemical refineries, chemical, food industries the control valves as final control or process isolation elements play the most important part in controlling fluid flow and safety of process.
The Training Course Will Highlight ?
Training Objective
Target Audience
This is designed to train new and limited experience technicians, and limited experience engineer. The program is useful for mechanical, instrument, electrical, chemical, and also senior supervisor.
Training Methods
This interactive Training will be highly interactive, with opportunities to advance your opinions and ideas and will include:
- Lectures
- Workshop & Work Presentation
- Case Studies and Practical Exercises
- Videos and General Discussions
Daily Agenda
Day 1:
The purpose of final control elements
- Control valves & actuators
- Introduction
- Control valve functions
- Dead band
- Speed of response
- Flow characteristic
- Rangeability
- Actuator
- Type of Actuator
- Actuator selection
- Actuator sizing
- Control valve installation
- Clearance and attachment
- Adjacent pipe fittings
- Steam and condensate
- Control valve selection
- Valve body designs
- Globe valves
- Single -port valves
- Double -port valves
- Three –way valves
- Split – body valve
- Angle valves
- Needle valves
- Ball valves
- Eccentric disc valves
- Butterfly valves
- Sunders diaphragm valve
- Pinch valves
- Gate valves
Day 2
- How to prevent valve failure (maintenance program)
- Reactive valve maintenance
- Preventive valve maintenance
- Predictive valve maintenance
- Curative valve maintenance
- Survey of common control valve problem (Vibrations, turbulence, or cavitation)
- Air leakage
- Incorrect bench set
- Back lash (dead band)
- Hysteresis
- Stick slip
- Packing friction
- Effects of cavitation
- Control Valve dynamics
- Backlash, hysteresis , stick slip
- Combined Backlash – stiction
- Speed of response
- overshoot
- Valve selection
- Flow characteristic
- Inherent
- Installed
- Fail Safe mode (FO or FC)
- Valve body
- Cavitation
- Corrosion
Day3:
Control valve sizing
- CV factor
- Critical flow
- Cavitation
- Effect of pipe reducers
- Effect of viscosity
- Liquid sizing
- Gas sizing
- Steam sizing
- Valve noise calculations and reductions
- Control valve noise
- Types of noise and recommended solutions
- Mechanical vibrations
- Hydrodynamic noise
- Aerodynamic noise
- Trim selection
- Material selection
- Pressure and temperature rating
- Flashing
- High pressure drop
- High temperature
- Leakage classes
- Noise, Aerodynamic
- Anti-cavitation
- Control valve Auxiliaries
- Hand wheel, By Basses and limit stops
- Snubbers
- Valve positioned
- I/P transducer
- Relays and other accessories
- Actuators
- Pneumatic actuator types
- Fail-safe position
- Actuator’s sizing
- Electric actuators
Valve positioners & accessories
- Positioners
- Function
- Split-range operation
- Conventional
- Double acting
- Profibus and smart Positioner
- Handwheels
- Limit switches
- Limit stops
- Stem position indicators
- Air sets
- Boosters
Day 4:
Electric motor drive control
Regulators, relief valves, and other control elements regulators
- Regulator types
- Level
- Pressure
- Flow
- Temperature
Safety relief valves
- Safety valve component
- Kind of safety valve
- Operation of safety valve
- Safety valves - design
- Safety valves – sizing
- Rupture discs
Day 5:
- Actuators forces and torques requirement for balance condition of control valve.
- Thrust (buoyancy force)
- Friction force of backing
- Seat load force
- Initial spring force
- Air force
Online valve testing to determine static and dynamic parameter
- Full stroking ramp test
- Partial stroking ramp test
- Step change test
Accreditation
BTS attendance certificate will be issued to all attendees completing minimum of 80% of the total course duration.
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