• Fitters for installation of bolt connections, who have acquired their practical and theoretical skills as part of vocational training or a similar trade qualification, can be admitted to the examination immediately.
• Fitters for installation of bolt connections, who have acquired their skills exclusively by learning on site by working with trained fitters and without formal theoretical training, must attend a recognized training course offered by a training provider comprising a minimum of 4 teaching units.
• Participants, who have no qualitative training or experience, must take part in a training course comprising a minimum of 8 teaching units in theory and practice and are then admitted to the examination.

• Written exam (multiple choice)
• Practical exam (Carrying out a task to bolt flange connections)

In the examination participants prove their knowledge in the following areas:

• Types of bolt connections
• How gaskets work
• Types of gaskets and their respective characteristics
• Relationship between bolt length (stretch), bolt force and pressure per unit area
• General causes of failure of bolt connections
• Loss of bolt force and subsequent consequences
• Applied and remaining bolt force
• General health and safety precautions
• Secure de-installation of the connection
• Preparation of the sealing surface
• Recognition of errors and defects
• Alignment of the sealing face and even distance
• Storage, handling, preparation and installation of the gasket
• Effects of thread friction on the bolt force on application of torque controlled tightening methods
• The importance of the use of the defined thread lubricant
• Tightening processes and corresponding accuracies
• Necessity for tightening processes
• Tightening process patterns
• Leak tightness classes
• Requirement to fulfil a certain leak tightness class
• Manual torque controlled tightening
• Maintenance and calibration of manual torque wrenches
• Requirements of hydraulically torque controlled tightening and tightening with hydraulically driven collets
• Confirmation that the joint can be put back into operation
• Documentation of the work carried out
• Documentation of deviations or irregularities
• Monitoring of emission and procedures in cases of leakage

Fitters for installation of bolt connections are capable of installing, de-installing and tightening bolt joints according to the requirements of DIN EN 1591-4:2013

Cooperation partners:

• Famas Engineering
• Ruhr Akademie GmbH