Vibration measurement and acceptance criteria as per API 610

Name: Vibration measurement and acceptance criteria as per API 610
Rating: 3.9 (10 reviews)

Vibrations allowed in centrifugal pumps for Petroleum, Petrochemical and Natural Gas Industries

Created byGhazanfar Khan

Last updated 5/2021

English

What you'll learn

The students will revisit or learn the basic concepts of vibration measurement and vibration analysis related to rotodynamic pumps.
The students will understand the factors which contribute to high vibrations during the performance testing of pumps.
They will learn about the procedures to be followed for data acquisition during the performance testing.
Understand the vibration limits for different types of pumps
They will learn how to interpret the test results and apply the acceptance criteria.

Course content

4 sections • 16 lectures • 1h 23m total length

Introduction to the course3:35

Introduction to section 42:30
Vibration measurement procedure for all bearings5:58
Vibration measurement procedure for hydrodynamic bearings5:14
Preferred Operating Region (POR)4:04
The students will be able
To compare the vibration amplitude measured during the performance testing within the POR to the acceptance criteria,
To check and verify the information regarding the POR for a given pump provided by the supplier, and
To cross-check the information in point 2 above w.r.t. guidelines given in ANSI/HI standard on POR and AOR.

Introduction to section 52:51
This is an introduction to section 5. It comprises of learning objectives, lecture titles and explanation of terminology used in this section.
Vibration limits for OH and BB pumps,8:44
The students will be able to apply the acceptance criteria and qualify the vibration performance testing results based on:
Overall vibration velocity RMS limit for non-rotating parts for overhung (OH) and between bearing (BB) pumps,
Overall vibration displacement pk-to-pk limit for rotating parts for OH and BB pumps with hydrodynamic bearings,
Discrete frequency vibration velocity RMS limit for non-rotating parts for OH and BB pumps,
Discrete frequency vibration displacement pk-to-pk limit for rotating parts for OH and BB pumps with hydrodynamic bearings.
Vibration limits for vertically suspended pumps8:03
The students will be able to apply the acceptance criteria and qualify the vibration performance testing results based on:
Overall vibration velocity RMS limit for non-rotating parts for vertically suspended (VS) pumps,
Overall vibration displacement pk-to-pk limit for rotating parts for VS pumps with hydrodynamic bearings,
Discrete frequency vibration velocity RMS limit for non-rotating parts for VS pumps,
Discrete frequency vibration displacement pk-to-pk limit for rotating parts for VS pumps with hydrodynamic bearings.
Vibration limits for high energy pumps7:49
This lecture covers:
The allowable overall vibration velocity RMS limit for pumps operating above 3600 rpm or absorbing more than 300 kW/stage,
The allowable discrete frequency vibration limit for the pumps above-mentioned speed and power rating,
Allowable vibration limit for variable speed pumps and during over-speed operations.

Introduction to section 63:20
In this lecture we will learn about the relationship between the pump vibration frequencies and corresponding defects. The amplitude of these vibration frequencies indicate the severity of the problem.
Typical frequency spectrum of a pump4:42
The students will be able to read the significant information contained in a FFT spectrum and will be able to understand the dynamic behavior of the pump.
Sub-synchronous vibration frequency spectrum4:23
The students will be able to read the information contained in the sub-synchronous portion - 5% to 35% of the FFT spectrum and will be able to relate the same to the problems, if any, in the pump.
Sub-synchronous vibration frequencies 40% - 55% FFT spectrum5:53
The students will be able to read the information contained in the sub-synchronous portion - 40% to 60% of the FFT spectrum and will be able to relate the same to the problems, if any, in the pump.
Sub-synchronous vibration frequencies 60% - 80% of FFT spectrum3:05
The students will be able to read the information contained in the sub-synchronous portion - 60% to 80% of the FFT spectrum and will be able to relate the same to the problems, if any, in the pump.
Lecture 6.5: Synchronous vibration frequencies 100% of frequency spectrum (1x)8:41
The students will be able to read the information contained in the Synchronous vibration frequencies 1x of the FFT spectrum and will be able to relate to the causes of high vibration amplitudes.
Non-synchronous vibration frequencies4:45
This lecture is about non-synchronous vibrations generated by cavitation in pumps and also includes details of vibration signature of rolling element bearing defects during different stages of failure.

Requirements

Basic engineering knowledge
Basic knowledge of pumps and pumping systems
Acquaintance with basics of vibrations and vibration analysis is helpful.
Field experience is desirable.

Description

This course is about factory performance testing of centrifugal pumps focusing on the vibration measurement and acceptance criteria according to American Petroleum Institute standard 610. This course comprises of the following sections.

Section 1: The introduction to the course. It covers the objective of the course, target audience and the course contents

Section 2 and 3: This section is offered under a separate heading in a separate course especially for those who want to refresh their knowledge of vibrations and vibration analysis and to on factors which can contribute to high vibrations during the factory test,

Section 4: How to prepare for the factory acceptance test, and

Section 5: It covers the vibration measurement and acceptance criteria, its interpretation and application to the factory performance test results.

For critical applications and high-performance pumps and pumping systems used in the petroleum, petrochemical and oil and gas industry, compliance to the requirements of vibration acceptance criteria is of paramount importance. The API standard 610 lays down these requirements in separate tables and provides additional information through cross-referenced clauses. Thus the API 610 standard warrants a thorough understanding of the tables and its reference clauses. Furthermore, the standard requires extensive preparations for meeting these requirements.

The objective of this course is to enable the target audience to:

1. Understand in detail the stated and implied meanings of the factory acceptance criteria on vibration limits,

2. Understand how to apply these requirements on the test results,

3. Ensure at the time of inspection and approval the standards stipulations are correctly interpreted and properly applied, and

4. To establish a base line for condition monitoring and reliability program for the plant and equipment.

Who this course is for:

Managers, Engineers, Supervisors, and professionals in the process industry, refineries and oil and gas sector:
Those responsible for preparation of pumps and pumping systems specifications,
Team members tasked with inspection, testing and approvals of new pumps,
Team members responsible for operations and maintenance,
Condition monitoring and reliability program development engineers,
Those Looking for additional learning and knowledge.

Vibration measurement and acceptance criteria as per API 610

What you'll learn

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Course content

Introduction to the course1 lecture • 4min

Pre-requisites for vibration measurement4 lectures • 18min

Vibration limits and acceptance criteria4 lectures • 27min

Typical frequency spectrum of centrifugal pumps7 lectures • 35min

Requirements

Description

Who this course is for: