Modern Valve Technology: Selection, Installation, Upgrading, Inspection, Maintenance, Repair and Troubleshooting
| Start Date | End Date | Venue | Fees (US $) |
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Modern Valve Technology: Selection, Installation, Upgrading, Inspection, Maintenance, Repair and Troubleshooting
| Start Date | End Date | Venue | Fees (US $) |
|---|
Introduction
Valves and pumps are the lifeblood of fluid systems - they must control flow of water, steam, air, gas, fuel, oil, slurries, wastes, and treatment chemicals very reliably. Proper design, selection, testing and commissioning require a thorough understanding of valves and pumps technology.
This training course provides the skills and knowledge of the design, selection, testing and commissioning of water flow valves and pumps. Topics include types of valves and pumps, materials, pumps and valves construction and operation, losses in valves and pipes, cavitation and water hammer, seals and backing, troubleshooting and inspection, and standard symbols. Emphasis shall be laid on topics relevant to advanced aspects and practical knowledge of testing, operation, characteristic curves and selecting the appropriate pumps and valves and how different parameters can affect pumps and valves operating conditions. Characteristics and operating charts and curves will be stressed.
Objectives
- Understanding of the different types of pumps.
- Operate pumps as close as possible to the design efficiency.
- Monitor pumps efficiency, availability and reliability.
- Selection, operation and maintenance strategies.
- Troubleshoot pump problems.
- understanding of different parameters affecting the operation of valves
- Have an ability to select the right valve for the particular application
- Have an ability to perform the necessary calculation for valve sizing
- Have an understanding of the problems associated with valves like flashing, slamming and water hammer
- Troubleshooting of systems involving valves
- Decide on the right maintenance plan concerning different types of valves
By the end of this course delegates will be able to:
Training Methodology
This is an interactive course. There will be open question and answer sessions, regular group exercises and activities, videos, case studies and presentations on best practice. Participants will have the opportunity to share with the facilitator and other participants on what works well and not so well for them, as well as work on issues from their own organizations.
Who Should Attend?
This course will also benefit anyone who wishes to update themselves on valve technology, judge the suitability of different types of valves for their needs, and learn how to operate and maintain them for the benefit of their organizations.
Course Outline
Basics of the Valve 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 %
Manual versus Automatic Valves
- Functions of manual valves
- Methods of regulation
- Valve Types:
- Stopping/starting valves
- Control valves
- Valve end 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
Relief and Safety Valves: Function and Operation
- Relief Valves Types
- Pressure-relieving devices
- Automatically operated valves
- Direct-acting & piloted pressure relief valves
- Modulating, full-lift, and ordinary pressure relief valves
- Valve Loading
- Safety Valves
- Operation of Direct-acting pressure relief valves
- Blowdown
- Relief valves problems
Rupture Valves
- Applications of Rupture Discs
- Rupture discs vs. Pressure relief valves
- Rupture discs in gases and liquid service
- Temperature and bursting pressure relationship
- Pressure tolerances
- Design and performance of ductile metal rupture discs
- Types of Rupture discs:
- Prebulged rupture discs
- Reverse buckling discs
- Vent panels
- Graphite rupture discs
- Double disc assemblies
- Rupture disc and pressure relief valve combinations
- Selection of rupture discs
- Operation of Rupture Discs
Valves Problems and Troubleshooting
- High Pressure Drop
- Pressure Recovery Characteristics
- Cavitation in Valves
- Incipient and choked cavitation
- Flow curve cavitation index
- Cavitation-elimination devices
- Flashing versus Cavitation
- Flow Choking
- High Velocities
- Water Hammer
- What causes water hammer?
- Water Hammer Calculations
- Solutions for water hammer
- Surge Protection
- Check valve slamming
- Noise problems
- Clean air standards
- Life loading
- Packing for fugitive-emission control
- Troubleshooting the Control Valves
Control Valves & 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
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
- Introduction-Historical Perspective
- Fluid Mechanics Basics
- Pump types
- Pump selection &Standards
- Centrifugal Pumps
- o Energy Conversion in Centrifugal Pumps
- o Efficiency
- o Total Head
- o Cavitation and NPSH
- o Affinity Laws
- o Axial and Radial Thrust
- o Suction and Discharge piping
- o Pump Characteristic Curve
- o System Curve
- o Control of Centrifugal Pumps
- o Pumps Operating in Series
- o Pumps Operating in Parallel
- o Starting Centrifugal Pumps
- o Minimum Flow Rate
- Mechanical Components
- Stationary Components
- ◊ Casing
- ◊ Suction and Discharge nozzles
- ◊ Seal Chamber and Stuffing Box
- ◊ Bearing Bracket
- ◊ Bearing isolators
- Rotating Components
- ◊ Impeller
- ◊ Wear rings
- ◊ Shaft
- ◊ Shaft Sleeve
- ◊ Couplings
- Auxiliary Components
- o Bearing Types
- ◊ Rolling Element Bearing Fits
- ◊ Rolling Element Bearing Mounting
- ◊ Rolling Element Bearing Axial Location
- ◊ Bearing Lubrication
- ◊ Bearing Failures
- o Shaft Sealing
- ◊ Packed Stuffing Box
- ◊ Mechanical Seal types
- ◊ Mechanical Seal Materials
- ◊ Seal Selection
- ◊ API682 Seal Arrangements
- ◊ Mechanical Seal Troubleshooting
- o Pump Overhaul, Disassembly, Shop measurements, assembly
- o Pump Foundation/Installation
- o Shaft Alignment
- o Dynamic Balancing
- o Materials Selection
- o Condition monitoring
- o Vibration Analysis
- o Troubleshooting
- o Other Types of Rotodynamic Pumps
- o Axial Flow
- o Mixed Flow
- o Regenerative Turbines
- o Centrifugal Pump Drives
- Electric Motors
- Diesel Engine
- Steam Turbine
- Gas Turbines
- Rotary Pumps
- Rotary VS Centrifugal Pump
- Types of Rotary Pumps
- Operation of Rotary Pumps
- Control of Rotary Pump
- Troubleshooting
- Reciprocating Pumps
- Types of Reciprocating Pumps
- Rotary VS Reciprocating Pumps
- Operation of Reciprocating Pumps
- Flow Control of Reciprocating Pumps
- Calibration columns
- Pulsation
- Troubleshooting
- Course Evaluation and Summary
Accreditation
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