Control Valve and Sizing:Selection and Maintenance
November 14, 2022
Jadwal Pelatihan Control Valve and Sizing:Selection and Maintenance
| Tanggal | Tempat | Kota | | Belum ada jadwal terbaru |
OBJECTIVE
- Understand what happens inside a control valve from basic fluid mechanics point of view
- Appreciate the difference between cavitation and flashing, and know what choked flow is
- Do simple calculations to determine CV values
- Recognise severe service applications and have an appreciation for the methods of tackling the problems associated with such applications
- Know about all the different types of control valves commonly in use and understand the relative advantages of each
- Choose between different characteristics on offer and specify seat leakage rates
- Size actuators for linear and rotary applications and know the relative advantages of pneumatic, hydraulic and electric types
- Have a basic understanding on how to select materials for bodies, trims, packing boxes, and gaskets
- Make use of a computer sizing program to assist with the selection of control valves
- Understand the failure modes for control valves and demonstrate new approaches to troubleshooting
OUTLINE
1. Introduction To Control Valve Theory
- Introduction
- Definition of a control valve
- Energy types
- What is happening inside a control valve
- Cavitation
- Flashing
- Choked Flow
- Valve Coefficient Cv
2. Different Types Of Control Valves
- Globe Valves
- Butterfly
- Eccentric disk
- Ball
- Rotary Plug
- Diaphragm and Pinch
3. Characteristics
- Equal percent
- Linear
- Quick opening
- Selection method
4. High Pressure Drop Applications
- Cavitation Control
- Cavitation Elimination
- Low Noise
- Diffuser Plates
- Chokes
- Disk Stack Technology
- Pressure Balanced Trim
5. Use Of Computer Program For Valve Sizing
6. Examples Of High Pressure Drop Applications
- Water – pump bypass
- Steam – turbine bypass
- Gas – pressure reducing
- Oil – choke valve
7. Actuators
- Pneumatic
- Hydraulic
- Electric
- Sizing on rotary valves
- Sizing on linear valves
- Mounting considerations
- Manual overrides
- Accessories
8. Positioners
- Basic principles
- Conventional pneumatic
- Conventional electro-pneumatic
- Smart Positioners
- Feedback options
9. Materials
- Body materials and pressure ratings
- Trim
- Packing
- Guides and gaskets
10. Quality Standars
- ASME
- NACE
- ISO 9000/2000
- PED
- NAMUR
11. Installation/maintenance
- Installation
- Commissioning
- Routine Maintenance
12. Summary, Open Forum & Closing
TRAINING METHOD
Presentation,
Discussion,
Case Study,
Evaluation
FACILITIES
Training Kit,
Flash disk, Handout,
Certificate,
Lunch,
2 X Coffee Break,
Souvenir,
Pick up participant Yogyakarta
