:: DEFINE | Management Consultancy & Training Provider In UAE, Abu Dhabi,Dubai,Saudi Arabia ::

MAINTENANCE OF ON OFF & CONTROL VALVES

Location

London, United Kingdom

Date

From Date: 12-Aug-2024
To Date: 16-Aug-2024

Duration

5 Days

Language

English

Discipline

MECHANICAL ENGINEERING

Introduction

A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. This course presents a practical approach to valve selection for the function, Servicing, sizing, installation, repair and maintenance.

Valves usually appear to be simple in form and operation, such as those of a manual Off- On Valve, Check Valve, or the Fixed Valve type such as an Orifice, Blind, etc.
You will discover that even these components are frequently installed improperly throughout the industry. This course will go through the following:

Valves types
Valve operation and control
Valve selection and sizing
Valve maintenance and troubleshooting

Objective

This course has been structured to show how different basic types of Valves operate and how they are configured for their many applications.

This short course will present many accessories such as actuators and how they are made available and selected. Other amenities such as proportional controllers, solenoids, positioners and indicators will also be presented.

In light of the many liability cases held throughout the world, selecting the proper valve can have major consequences for a company's safety, economy and viability.

Audience

This course is intended for Maintenance and control Engineers, control and instrument supervisor , Application Engineers, Inspection Engineers, Elect/Electronics Engineers, Control Systems and Instrumentation Engineers, Production Engineers, and the new Valve Designers.

Content

COURSE OUTLINE:

DAILY OUTLINE –

Part 1

Basics of the Valve Technology
Valves Technology
- Types of Valves
- Valves characteristics
- Sealing performance
  - Leakage Criterion
  - Leakage Classifications
  - Sealing Mechanisms
  - Valve stem seals
- Flow characteristics
  - Flow through valves
  - Valve flow characteristics
    - Linear & equal %
On / Off versus Automatic Valves
On/Off Valves
- Functions of manual valves
- Methods of regulation
- Valve Types:
  - Stopping/starting valves
  - Control valves
- Valve end connections
- Valves rating
- Valves seating
- Types of manual valves
  - Gate Valves
  - Plug Valves
  - Ball Valves
  - Butterfly Valves
  - Pinch Valves
  - Diaphragm Valves
  - Check Valves
    - Applications
    - Types of Check Valves
      - Lift check valves
      - Swing check valves
      - Tilting-disc check valves
      - Diaphragm check valves
    - Check Valves Operation
    - Selection of Check Valves

Part 2 Valves Troubleshooting and maintenance

Valves Problems, and Troubleshooting

High Pressure Drop
- Pressure Recovery Characteristics
Cavitation in Valves
- Incipient and choked cavitation
- Flow curve cavitation index
- Cavitation-elimination devices
Flashing versus Cavitation
Flow Choking
High Velocities
Water Hammer
- What causes water hammer?
- Water Hammer Calculations
- Solutions for water hammer
Surge Protection
Check valve slamming
Noise problems
Clean air standards
Life loading
Packing for fugitive-emission control
Troubleshooting the Control Valves

Control Valves & Actuators

Control Valves Types
Linear Valve Features
Rotary Valve Features
Control Valve Flow Characteristics
Operation of Positioners

Valve maintenance

Assembly and disassembly valves
Repair seat and disc / gate
Lapping valves
Gasket and packing replacement
Hydraulic test and inspection

TRAINING OUTCOME

Understanding of valve characteristics and main types of valves and the ability to select the right valve for the particular application
Knowledge of valve control system including actuators and positioners
An understanding of problems associated with valves
The ability to perform right maintenance and troubleshooting of valves

NOTE:
Pre & Post Tests will be conducted
Case Studies, Group Exercises, Group Discussions, Last Day Review & Assessments will be carried out.

Certificate

Define Management Consultancy & Training Certificate of course completion will be issued to all attendees.

Methodology

A highly interactive combination of lectures and discussion sessions will be managed to maximize the amount and quality of information and knowledge transfer. The sessions will start by raising the most relevant questions, and motivate everybody find the right answers. You will also be encouraged to raise your own questions and to share in the development of the right answers using your own analysis and experiences. Tests of multiple-choice type will be made available on daily basis to examine the effectiveness of delivering the course.
Very useful Course Materials will be given.

30% Lectures
30% Workshops and work presentation
20% Group Work& Practical Exercises
20% Videos& General Discussions

Course Details