API 598: Valve Inspection & Testing: Piping Course

Table of Contents

API 598 covers the inspection, examination, and testing requirements for resilient-seated, nonmetallic-seated, and metal-to-metal-seated gate, glove, plug, ball, check, and butterfly valves.

The course on API 598: Valve Inspection & Testing: Piping Course has been developed to explain the fundamentals of Compressor piping layout design in a particular project in detail. The content is organized in a systematic manner so that the first timers can also understand. Course content is based on practical problems and solutions, which is created by experienced professionals with decades of experience in the relevant field.

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The purpose of this article is to give answers to the basic questions about the course which commonly comes into the mind before enrolling to the published courses. So Let’s begin with details and look at various sections of the article.

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What you’ll learn in this course?

In this Course, we are going to discuss about various clauses of API 598. Following things shall be discussed.

Inspection, Examination, and Supplementary Examination

Inspection at the Valve Manufacturer’s Plant
Inspection Outside the Valve Manufacturer’s Plant
Inspection Notice
Extent of Inspection
Examination
Supplementary Examination

Pressure Tests & Pressure test Procedure:

Test Location
Test Equipment
Tests Required
High-pressure Closure Test
High-pressure Pneumatic Shell Test
Test Fluid
Test Pressures
Test Duration
Test Leakage

Comparison between Various international standards

API 598
ASME 16.34
API 6D
ISO 5208
API 600
DIN EN 12266
MSS SP-61

FAQs: Frequently asked Questions

Following questions have been answered in detail in the course:

1. What is the difference between API 598 and API 6D?

Answer : For low-pressure closure tests, the test medium for API 598 is air or inter gas, whereas the test medium for API 6D is air or nitrogen. Many more differences have been explained in the course.

2. What is api598?

Answer: API 598 covers the inspection, examination, and testing requirements for resilient-seated, non-metallic-seated, and metal-to-metal-seated gate, glove, plug, ball, check, and butterfly valves.

3. What is API standard for valves?

Answer: API – American Petroleum Institute is the national trade association that represents all aspects of America’s oil and natural gas industry.

4. How do you perform a valve test?

Answer: The valve seat tests procedure involves placing a valve under pressure, then measuring the amount of leakage on the other side of the valve.

5. What is the latest edition of API 598?

Answer: As on Sep 2022, latest edition is 10th Edition, October 2016. Published Date: October 2016.

6. What are three basic methods for testing a check valve?

Answer: Critical check valves are inspected/tested using three main methods: externally, internally and, in unique situations, in-line function testing.

7. What is acceptable leakage rate?

Answer: The maximum permissible leakage rate shall be 0.18 cubic inch (3 cubic centimeters) per minute per inch of nominal pipe size.

8. What are the test for valves?

Answer: Valve seat leakage tests are required for pressure relief valves. Backseat tests are required for valves with a backseat element, including gate and globe valves. Closure tests are required to test the closure mechanism of several types of valves, including gate, globe, plug, check, and ball valves.

9. What does API stand for NDT?

Answer: API – American Petroleum Institute is the national trade association that represents all aspects of America’s oil and natural gas industry.

10. What is Back Seat test in valves?

Answer: The Valve Back Seat Test is performed in the valve with a backseat feature. This is a feature that allows valve packing being replaced while it is in the service. In this test, the valve shall be fully opened and packing gland shall be loose or not installed. No leakage is permissible in the backseat test.

11. How do you check for passing valves?

Answer: Detection of a passing valve using the Joule-Thomson effect principle through the valve: This principle consists of identifying a lower temperature downstream of the valve compared to the temperature upstream of the valve. This method can be applied with a thermal gun.

What is the duration of course

Total duration of the course is 1 hour. However, it is recommended to watch the lecture at least thrice, so that the fundamentals covered can be easily grabbed.

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Recommendations to proceed further

It is highly recommended that watching all the lecture continuously in a single sitting should be avoided.
Prepare a schedule of 1-2 hours on daily basis.
Write down the learning in short or in the form of your own notes
List out the queries or doubts and share at Forums of Engineers Land.
Join Telegram group and register to keep yourself updated with the latest published content on EPCLand and Engineers Land.

Top Benefits of Piping Engineering course

Lifetime access once enrolled
Same lecture can be watched as many times as you want
Flexibility of time and location
Readymade notes which can be referred before interviews and working on live projects
Become part of professional communities on Telegram & Engineers Land.

Prerequisites of this course

Willingness to learn
Complete clarity on where you see yourself after 3-5 years
Awareness of Energy sector (Click here to read about Scope of Piping Engineers)

How to be an expert in piping engineering

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