MODULE DETAILS

 

Module 3: Control Valve Sizing, Selection and

Maintenance

 

Nominal duration: 2 weeks (24 hours total time commitment)

 

This time commitment includes the preparation reading, attendance at each webinar (1 hour plus 15-30 minutes for discussion), and the time necessary to complete the assignments and further study.

 

MODULE PURPOSE

 

This module covers the sizing, selection and maintenance of control valves as used in an industrial environment.

 

PRE-REQUISITES MODULE, UNITS /

 

CO-REQUISITES

 

Module 2

 

ASSESSMENT STRATEGY

 

To evaluate the achievement of the learning outcomes; written assignments, group projects and practical exercises are set.

 

SUMMARY OF LEARNING OUTCOMES

 

1. Select control valves for a given application

 

2. Examine valve sizing for high pressure drop applications

 

3. Select appropriate materials and actuators for control valves

 

4. Examine the installation and maintenance procedures for control valves

 

 

 

Learning Outcome 1

 

Select control valves for a given application

 

Assessment Criteria

 

1.1

 

Examine the methods of operation, characteristics, and related terminology of:

 

(a) Globe valves

 

(b) Butterfly valves

 

(c) Eccentric disc valves

 

(d) Ball valves

 

(e) Rotary plug valves (f) Diaphragm valves (g) Pinch valves

 

 

1.2

 

Compare and select the most appropriate valve for a given application

 

Learning Outcome 2

 

Examine valve sizing for high pressure drop applications

 

Assessment Criteria

 

2.1

 

Examine problem areas and suggest remedial design approaches for high pressure drop applications

 

 

2.2

 

Select the appropriate valve size for high pressure drop applications

 

Learning Outcome 3

 

Select appropriate materials and actuators for control valves

 

Assessment Criteria

 

3.1

 

Compare the relative advantages and disadvantages of hydraulic, pneumatic and electric actuators

 

 

3.2

 

Examine the various materials and quality standards applicable to control valve construction

 

 

3.3

 

Select appropriate materials for pump bodies, trims, packing boxes and gaskets

 

 

3.4

 

Select appropriate actuators for valve control

 

 

 

Learning Outcome 4

 

Examine the installation and maintenance procedures for control valves

 

Assessment Criteria

 

4.1

 

Outline the various modes of valve failure

 

 

4.2

 

Outline the installation, commissioning and routine maintenance procedures applicable to control valves

 

Delivery mode

 

A combination of asynchronous and synchronous e-learning delivery comprising a judicious mix of interactive online web conferencing, simulation (virtual labs) software, remote online labs, online videos, PowerPoint slides, notes, reading and study materials (in PDF, HTML and Word format) accessed through the Moodle Learning Management System (LMS).

 

Software/Hardware Used

Software

  • CvSize

  • v3_5_0_5

Hardware

  •  N/A