This workshop will teach you some process control fundamentals with instrumentation basics. You will also learn how to select and size control valves and avoid costly mistakes resulting in poor control.

Process Engineers and Instrumentation Technicians. Anyone working with and concerned with process control valve performance should attend.

Valves and Instruments in Process Control, Sizing

1. INTRODUCTION
- Introduction to instrumentation and control valves

2. ELEMENTS OF PROCESS CONTROL
- The role of control valves
- ON/OFF vs. continuous control
- Simple control strategiesin chemical processes (flow, temperature, level)
- Feedback vs. Feedforward control
- Common process instrumentation and installation tips

3. TYPES AND SELECTION OF VALVES
- Tips on valve selection
- Families of valves
- Accuracy, turndown ratio and cost
- Valve accuracy and the effect on process control accuracy
- Using mid-range control to improve turndown ratio and control accuracy
- When to use a 3-way control valve

4. THEORY OF VALVE SIZING
- Origins of the theory
- Gathering data on service conditions
- Calculating  P
- Exercise 1: Sizing a valve with a pump and negligible pipe friction loss

Sizing Complications, Gas Service, Actuators, and Common Valve Problems

5. COMPLICATIONS IN VALVE SIZING: LIQUIDS
- Piping and equipment friction losses
- Exercise 2: Sizing a valve with a pump and significant pipe friction loss
- Vaporization, Choked Flow, Cavitation, & Flashing
- Anti-cavitation measures
- Exercise 3: Do we have cavitation?

6. CONTROL VALVE SIZING FOR GAS FLOW
- CV for gas and steam
- Supersonic and Choked flow
- Exercise 4: Steam flow valve sizing

8. NOISE IN CONTROL VALVES
- Noise in liquids
- Noise in gas and steam
- Anti-noise measures

9. SEALS AND LIMITS OF CONSTRUCTION
- Seals and Packing
- Leakage rates
- Materials

10. ACTUATORS AND ACTUATOR SIZING
- Process safety and actuator fail direction
- Rotary actuators
- Linear actuators
- Air boosters
- Exercise 5: Actuator sizing

11. HOW TO DIAGNOSE AND CORRECT FOR COMMON VALVE PROBLEMS
- What to do about valve non-linearity?
- What are valve stiction and hysteresis and how do we easily identify these?
- Positioners and why we need them
- Exercise 6: Diagnosing valve stiction and hysteresis
- Cascade control to reduce the effects of valve non-linearity, stiction, and hysteresis