Pressure Relief Valves - Optimum Performance & Safety

Design, sizing, selection, assembling, installation & operation of Process Safety Valves to ASME & API Codes & Standards

4.77 (11 reviews)
Udemy
platform
English
language
Industry
category
instructor
Pressure Relief Valves - Optimum Performance & Safety
132
students
5.5 hours
content
May 2022
last update
$84.99
regular price

What you will learn

Learn from WR Training industrial experts what they wrongly calculated during project startup, debottlenecking and commissioning

Understand safety valve manufacturers’ literature better and understand their jargon

Understand how the ASME Boiler and Pressure Vessel Code, Section VIII affects sizing, selection, assembling, testing and installation of pressure relief valves

Understand how the API Recommended Practice RP520 affects sizing, selection, assembling, testing and installation of pressure relief valves

Become more aware of the potential benefits and pitfalls of the currently available safety valve technology

Size and select pressure relief valves according to the currently available state-of-the-art valve sizing technology

Make more informed and creative decisions in the selection, sizing, installation and use of safety valves and their applications

Test your knowledge with +150 question-quiz

Download useful technical data covering terminology, standards, codes, basic design, sizing and selection information

Description

Safety and pressure relief valves should be taken very seriously.

They must always accurately respond to system conditions and prevent catastrophic failure when other instruments and control systems fail to adequately control process limits.

Unfortunately, because of the lack of knowledge and disappearing expertise worldwide, the quality of selection and operation of pressure relief valves is often insufficient.

This possibly jeopardizes the safety of each of us, living or working in the neighborhood of a process plant.

Proper sizing, selection, manufacture, assembly, test, installation and maintenance of a pressure relief valve are all critical to obtaining maximum protection.

Designed around a series of practical examples which we work through to a solution, this valuable course is an essential guide to a complete understanding of construction details and functioning of relief and safety valves.

This understanding is a pre-requisite for the proper sizing, selection, assembly, test, installation and maintenance of pressure relief valves.

The course presents reference data, technical recommendations and field observations based on our many years of experience in sizing, selecting, testing, installing and operating pressure relief valves.

The basic formulae and capacity correction factors contained in this course reflect current state-of-the-art pressure relief valve sizing technology.

Typical valve sizing examples have been included to assist in understanding how specific formulae are applied.

Useful technical data covering terminology, standards, codes, basic design, sizing and selection information, are presented in an easy to use format.

Reference is made to :

  • ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels

  • API Recommended Practice RP520

This course also cautions the piping designer, the process engineer and any user of safety valves, that the performance of a properly sized and selected pressure relief valve, can be severely compromised when used in conjunction with improper companion piping or incorrect handling and installation.

Pressure relief valve installation guidelines and their rationale, as well as some precautions, are offered to ensure optimum performance and safety.

Now, while it is obviously impossible to address every installation mistake ever made, we have included a valuable summary of the most frequent installation mistakes encountered in the field.

In addition, you will find at the end of each section a technical quiz to help you test your knowledge.

If you pass wonderful, if not, you can watch the video lectures again or ask us for help in the Q&A section.

We are confident that this valuable course will help you contribute to the safety of your facility, your fellow workers and yourself.

Thank you for watching. Hope to see you there.

WR Training

Spread the wings of your knowledge


IMPORTANT SAFETY NOTES


  1. It is important to always remember that a pressure relief valve is a safety device employed to protect pressure vessels or systems from catastrophic failure. With this in mind, the application of pressure relief valves should be assigned only to fully trained personnel and be in strict compliance with rules provided by the governing Codes and Standards


  2. Pressure relief valves must be sized, selected and installed by those who have complete knowledge of:

    • The pressure relieving requirements of the system to be protected

    • The environmental conditions particular to that installation


  3. Pressure relief valves sizing and selection is the responsibility of:

    • The process engineer

    • The user of the system to be protected


  4. Sizing and selection of pressure relief valves should not be based on arbitrarily assumed conditions or incomplete information. Merely having a mandatory safety valve installation does not make a system safe

Content

Design fundamentals

Introduction
Types of devices
Useful terminologies
Relief and Safety valves
Safety valves
Safety valves : Pressure setting
Safety valves : 3D dismantling
Safety valves : 2D dismantling
Relief valves
Relief valves : Valve operation in 2D cross-sectional view
Relief valves : 3D dismantling
Relief valves : 2D dismantling
More on spring loaded design
More on spring loaded design : 3D animation
Material of construction
Back pressure considerations
Dynamic back pressure (built-up back pressure)
Seat leakage
Testing safety valves with air or nitrogen
Before proceeding to the next section
Design fundamentals : Test your knowledge

Codes and Standards

Introduction
API Codes and Standards
ASME Codes and Standards
ANSI Codes and Standards
Other Codes and Standards
Approval authorities
Sizing safety valves : Heads-up
Safety message
Before proceeding to the next section
Codes and Standards : Test your knowledge

Safety valves selection

Introduction
Setting and sealing
Effect of back pressure on set pressure
Pressure level relationships according to API RP520
Safety valve positioning
Example #1 : Positioning a steam application safety valve
Example #2 : Positioning a process safety valve
Before proceeding to the next section
Safety valves selection : Test your knowledge

Safety valves sizing

Keep in mind and always remember !
Introduction
Finding the fault flow
Coefficient of discharge
Sizing equations for steams 1/3 : General equation
Example #3 : Sizing a safety valve for a steam application
Sizing equations for steams 2/3 : Wet Steam
Sizing equations for steams 3/3 : Dry Saturated Steam and Superheated Steam
Example #4 : Sizing a safety valve for Superheated Steam
Sizing for liquids and gases - Intro
Required sizing data
Sizing for gases : 10% Overpressure - Mass flow rate (lb/h)
Sizing for gases : "C" coefficient
Sizing for gases : "Kb" coefficient
Sizing for gases : Compressibility factor
Example #5 : Atmospheric back pressure
Example #6 : Constant superimposed back pressure
Example #7 : Set pressure below 30 psig
Example #8 : Variable superimposed back pressure
Sizing for gases : 10% Overpressure - Standard Volumetric flow rate (scfm)
Example #9 : Variable built-up back pressure
Sizing for liquids
Sizing for liquids : "Kw" coefficient
Sizing for liquids : "Kv" coefficient
Example #10 : Sizing for a non-viscous liquid application
Example #11 : Sizing for a viscous liquid application
Multiple valve sizing
Noise level calculations
Noise intensity
Example #12 : Noise level calculations
Sizing for vaporizing liquids - Fire conditions
Logic diagram for effective liquid level calculation
Example #13 : Sizing for fire conditions (liquids)
Sizing for gases and vapors only - Fire conditions
Example #14 : Sizing for fire conditions (gases and vapors only)
Capacity conversion
Example #15 : Converting a propane PRV
Before proceeding to the next section
Safety valves sizing : Test your knowledge

Safety valves installation

Introduction
Piping connection
Excessive pressure drops
Isolation valves
More on piping connection
Calculating piping losses
Entrance effects
Piping inlet losses
Upstream devices
Example #16 : Evaluating existing safety protection
Calculating outlet piping
Example #17 : Calculating discharge piping diameter
Reaction forces
Frequent installation mistakes
Before proceeding to the next section
Safety valves installation : Test your knowledge

Downloadable resources

Downloadable resources

Reviews

Thai
June 13, 2022
Found almost all the courses from this instructor are very detailed, organized and easy to understand

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4473484
udemy ID
1/3/2022
course created date
6/6/2022
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