ECITB MJI 18 eLearning Module –

Hydraulically Tension Bolted Connection Techniques

Duration: 120 mins

Level: Intermediate

Pass mark: 80%

Course Description

Who is the course for?
This eLearning course is aimed at existing workers requiring refresher training before taking the ECITB technical test for ECITB standard MJI18: Hydraulically Tensioned Bolted Connection Techniques.

Is previous experience required?
It is expected that as a participant in this course, you will have received formal training in working with mechanical joints and that you hold suitable qualifications. Completion of this course does not certify you to the ECITB standard but it will prepare you for the technical test.

How will the course benefit me?
Incorrectly bolted flanges are one of the main causes of hydrocarbon releases, which can have a serious impact on the environment, operating costs and the safety of personnel. This course will give you an understanding of how mechanical joints work and how to use hydraulic tensioning.

The knowledge gained in this course will help you understand how to dismantle, remove and replace components correctly to minimise the leaks and safety concerns associated with incorrectly bolted flanges. It will give an overview of hydraulic tensioning equipment and how it should be used.

How will the course benefit my company?
By properly making up bolted joints, you contribute to the integrity of the asset, and the safety of your fellow workers and yourself. A reduction in hydrocarbon releases means a reduced environmental impact and reduced losses of revenue.

What standards are referenced in the course?
This course is written with reference to the ECITB standard MJI18: Hydraulically Tensioned Bolted Connection Techniques. The course has been approved by ECITB as part of the ECITB/Step Change in Safety MJI model.

Is there an assessment?
Once you have completed the course, you will be asked a series of questions to check your knowledge and understanding. These are based on the learning objectives for the course and have a pass mark of 80%.

Learning Objectives
  • Describe the specifications covering dismantling, preparation and securing of bolted connections
  • Explain how compliance is checked
  • Introduce the bolted mechanical joint
  • Explain the different kinds of flanges available
  • Provide an overview of nuts and bolt technology
  • Show the different gasket types
  • Describe the correct installation of gaskets
  • Describe uncontrolled tightening
  • Describe partially controlled tightening
  • Describe fully controlled tightening
  • Describe the various measuring tools available for controlled tightening
  • Show the effects of too low stresses being used
  • Show the effects of too high stresses being used
  • Explain how torque is calculated
  • Explain that the amount of torque put in is not always transferred to the bolt
  • Describe how to reduce friction
  • Recognise level and extent of responsibility when dismantling bolted connections
  • Specify the type of assets to be dismantled and the methods
  • Identify isolations and disconnections that may be required
  • Describe methods and techniques required for dismantling
  • Identify typical problems and how to resolve them
  • Recognise level and extent of responsibility when replacing bolted connections
  • Describe the types of equipment that might be worked on
  • Describe a range of components that may be replaced
  • Confirm that replacement parts are suitable
  • Describe methods and techniques required for re-assembly
  • Identify typical problems and how to resolve them
  • Describe the components of a typical bolt tensioner
  • Explain the operation of a typical bolt tensioner
  • Explain load loss when tensioning a bolt
  • Give an example of bolt tensioning
Available ECITB eLearning Modules:
Further Information
Course Details

Product ID: ATL001_01_176_1_L2_ENG_ 001

Price Band: Fixed

Provider: Academy of Joint Integrity

Category: Mechanical

Sub Category: Asset Integrity

Accreditation: ECITB

Assessment Model: Standard – Assessment at the end of the course, with a percentage pass mark

System requirements:

Internet Access - Users will need a computer or device with a web browser and an internet connection

System - Runs on desktop computers using Microsoft Windows 7, 8 and 10, and MAC OS

Browser - Runs on IE11, Chrome, Firefox and Safari, but requires the latest Flash Player to run

Audio – Requires speaker or headphones

Notes - Not suitable for tablets or smartphones
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