Valves Selection, Operation and Maintenance

FOREWORD

This course provides an understanding of valves selection, operation, maintenance and how they interact for optimum system performance. Additionally, participants will receive expert guidance in making cost-effective decisions and tips for avoiding poor system operation. Learn hydraulic theory as it applies to valves systems, as well as criteria for their selection. This course offers a unique opportunity to learn more about the interaction of system equipment items and their applications.

TARGETED AUDIENCE:

This course would benefit applications engineers; industrial and public works engineers and managers; general and mechanical contractor project managers and estimators; systems designers; and operations and maintenance personnel. Operations & maintenance people with less formal but hands-on technical experience will also benefit.

SPECIAL FEATURES:

Bring actual problems from your job experience. Problems will be answered in class or on an individual basis, depending on the complexity of the application.

SYLLABUS

Introduction to Valves
The Valve. Valve Classification According to Function. Classification According to Application. Classification According to Motion. Classification According to Port Size. Common Piping Nomenclature.

1. Valve Selection Criteria
2. Valve Coefficients. Flow Characteristics. Shutoff Requirements. Body End Connections. Pressure Classes. Face-to-Face Criteria. Body Material Selection. Gasket Selection. Packing Selection.
3. Manual Valves
4. Introduction to Manual Valves. Manual Plug Valves. Manual BallValves. Manual Butterfly Valves. Manual Globe Valves. Manual Gate Valves. Manual Pinch Valves. Manual Diaphragm Valves.
5. Check Valves (CHV)
6. Introduction to CHV. Lift CHV. Swing CHV. Tilting-Disk CheckValve. Double-Disk CHV. Diaphragm CHV. CHV Operation. CHV Installation. CHV troubleshooting/Maintenance. CHV Servicing.
7. Pressure Relief Valves (PRV)
8. Definition. PRV Design. PRV Operation. PRV Installation. PRV Troubleshooting. PRV Servicing.
9. Control Valves (CV)
10. Introduction to Control Valves. Globe Control Valves. Butterfly Control Valves. Ball Control Valves. Eccentric Plug Control Valves. CV Operation. CV Installation. CV Troubleshooting /Maintenance. CV Servicing.
11. Actuators and Actuation Systems
12. Definition of actuators and actuation. Pneumatic actuation: introduction, pneumatic actuator design, pneumatic actuator installation, pneumatic actuator troubleshooting, pneumatic actuator servicing. Non-pneumatic actuators: electric actuators, hydraulic and electro-hydraulic actuators. Actuator performance. Positioners: introduction, positioner operation, positioned calibration, positioner troubleshooting.
    Common-Valve Problem
    High-pressure drops. Cavitation. Flashing. Chocked flow. High velocity. Water-hammer effects. High noise levels. Noise attenuation. Fugitive emissions.

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