Valves are, unquestionably, the most important part of any piping and pumping system because they direct the flow of fluids and regulate temperatures. Properly used and maintained, they can improve process efficiency and lower costs. It is wise to apply the basics of proper valve maintenance in ways that improve their life cycle and operating efficiency. Here are eight often-overlooked valve maintenance basics that can help you do just that. Five years ago, the management at Vulcan Chemicals, a business group of Vulcan Materials Company, commissioned a study to identify components representing high annual maintenance costs. The outcome: instead of expected high-ticket items like heat exchangers and pumps gobbling up dollars, it was determined that valves and piping represented up to 80% of the maintenance budgets allocations in certain cost centers. The study indicated annual potential savings of up to $500,000 in valve replacement costs alone if a program could be developed to guide purchasing and improve maintenance procedures.OUTLINE
1. Control Valve :
Preface, Components and function of valve body, Type of valve
according stem movement, Types of plug, Plug guiding, Characteristics
flow of control valve, Valve and its characteristics, Design features
and considerations
2. Actuator and Positioner :
according stem movement, Types of plug, Plug guiding, Characteristics
flow of control valve, Valve and its characteristics, Design features
and considerations
2. Actuator and Positioner :
Function and selection criteria of actuator, Diaphragm and piston
actuator, Type of actuator action, Electrical actuator, Function,
objective and location of positioner, Positioner action
3. Accessories for Control Valve :
actuator, Type of actuator action, Electrical actuator, Function,
objective and location of positioner, Positioner action
3. Accessories for Control Valve :
Hand wheels or operator manual, Snubber, Limit switch, Supply pressure
regulator, Booster relay, Fail safe system, On-off relays
4. Control Valve Selection :
regulator, Booster relay, Fail safe system, On-off relays
4. Control Valve Selection :
Information for selection of control valve, Materials of control
valve, Corrosion resistance material, Selection of flow
characteristics,
5. Control Valve Sizing :
valve, Corrosion resistance material, Selection of flow
characteristics,
5. Control Valve Sizing :
Preface, Flow capacity coefficient, Liquid service, Cavitations and
flashing, Choked flow, Damages due to cavitations and flashing, How to
avoid corrosion and cavitations on control valve, Cavitations index,
Gas or steam service, Gas sizing universal, Sizing for mixing
gas-liquid, Actuator sizing, Actuator for sliding and rotary stem
valve, Valve sizing using software
6. Â Valve Problems and Maintenance Activities :
flashing, Choked flow, Damages due to cavitations and flashing, How to
avoid corrosion and cavitations on control valve, Cavitations index,
Gas or steam service, Gas sizing universal, Sizing for mixing
gas-liquid, Actuator sizing, Actuator for sliding and rotary stem
valve, Valve sizing using software
6. Â Valve Problems and Maintenance Activities :
Noise in valve, Noise Control, Fluid behaviors, Problems in control
valve and its solution, Maintenance problems of control valve,
Troubleshooting analysis, Hands-on activities
valve and its solution, Maintenance problems of control valve,
Troubleshooting analysis, Hands-on activities
WHO SHOULD ATTEND
* Instrumentation Engineers & Technicians
* Design and Process Engineers
* Operation, Piping, Mechanical and Plant Engineers
* Maintenance Technician and supervisors
* Service Engineers and supervisors
* Work over engineers and supervisors
* Asset Manager Team members
* Everybody who are responsible for selecting, purchasing, or
repairing control valves.
* Design and Process Engineers
* Operation, Piping, Mechanical and Plant Engineers
* Maintenance Technician and supervisors
* Service Engineers and supervisors
* Work over engineers and supervisors
* Asset Manager Team members
* Everybody who are responsible for selecting, purchasing, or
repairing control valves.
METHOD
Presentation
Discussion
Case Study
Evaluation
Training Control Valves : Selection, Operation and Maintenance
