
Control valve maintains process variables at set point by throttling flow through a trim that changes the flow area, like a doorway between upstream high pressure and downstream lower pressure.
Review the valve parts of a control valve and their roles in maintenance and troubleshooting, highlighting component functions and common issues to streamline repairs.
Explore how piston actuators for globe valves modulate flow using air pressure. Learn double acting operation, upper and lower cylinder pressures, o-ring seals, and maintaining position with balanced pressure.
Assemble a globe valve, lubricate threads, insert components, and torque to spec; grease gasket, install bonnet, and secure packing and locking nuts on plug stem for exterior installation.
Install Samsung 3 to 7 psi actuator on globe valve bonnet, retract stem with about 20 psi, and secure locknut, ring nut, stem connector clamp, and travel indicator.
Learn to safely set up and calibrate a Fisher DVC positioner on a linear control wall, including alignment, stroke setting, air and electrical connections, and auto calibration.
Learn how volume boosters speed valve positioning by tuning the proportional deadband and using a bypass, with a Siemens PS two-positioner to move from open to close faster.
Course Description:
Unlock the essentials of control valve maintenance and troubleshooting with this comprehensive course designed for engineers, plant technicians, operators, and other plant personnel. This course delivers in-depth knowledge and practical skills needed to effectively manage control valves, a critical component in optimizing plant operations.
What You'll Learn:
Control Valve Basics: Gain a solid understanding of control valve terminology, parts, and their applications.
Valve Sizing & Selection: Learn to size control valves for liquid, gas, and steam services and select the appropriate valve types based on flow characteristics and service conditions.
International Standards: Familiarize yourself with international standards for control valves, including seat leakage classifications and material considerations.
Hands-On Maintenance & Calibration: Master the techniques of assembling, disassembling, repairing, and calibrating various types of control valves, including Smart Control Valves and Positioners.
Valve Accessories & Actuators: Explore different actuator types, their selection criteria, and the role of control valve accessories in enhancing performance.
Course Highlights:
Comprehensive Lectures: Detailed explanations of control valve types, characteristics, and specifications.
Practical Exercises: Extensive hands-on training with specific tools and testing equipment, including control valve repair, calibration, and leak testing using test rigs.
Real-World Applications: Practical insights into the operation of Smart Positioners, I/P converters, and the integration of control valves in plant systems.
Course Outcomes:
By the end of this course, you will be able to:
Explain essential control valve terminology and characteristics.
Accurately size control valves for various services.
Repair, calibrate, and maintain different control valve types.
Operate and calibrate Smart Control Valves and Positioners.
Apply knowledge of international standards in valve selection and maintenance.
This course is your gateway to mastering control valve maintenance and troubleshooting, empowering you to enhance plant performance and reliability.