L 67: Tight Bolted Joints using EN 1591 Design Method

Design bolted flange joints according to the tightness level requirement by applying the theoretical and practical (case studies) knowledge of the European calculation standard series EN 1591


Upon completion of the training, participants will be able to:
• Explain the gasket parameters measurements as specified in EN 13555,
• Understand and apply the calculations developed in EN 1591,
• Design bolted flange joints in accordance with EN 1591


Mechanical engineering background.


Alternating theory and practice through exercises and case studies using a dedicated software. Please bring along a scientific calculator.


Engineers working in the field of pressure vessel and piping design, gaskets manufacturers, plant operators and maintenance.


  • EN 1591-1 Design Method and Associated Standards Presentation
    • Introduction to EN 1591-1
    • EN 1591-1 Design Method
      • Hypothesis and principle
      • Consideration for different bolted joint components such as flange, bolts and gaskets
      • Consideration for different loadings such as pressure, differential thermal expansions, external loads etc.
      • Calculation Algorithm
      • Design to meet tightness requirements such as gasket effective surface and initial required tightening force for the bolt and tightening range definition regarding the tightening tool dispersion
      • Mechanical integrity checks for the bolted flange joints and Load ratio calculation
      • Comparison of EN 1591-1 versus Taylor Forge


  • CAP1591 CETIM Software
    • Case studies using CAP 1591 Software
  • Introduction to the Gaskets Parameters used in EN 1591-1
    • EN 13555: Test procedure for EN 1591-1 gasket parameters determination
    • EN 1591-2: Tabulated values of generic gasket data
    • Other sources of gaskets data
  • Application and Case Studies using CAP1591 CETIM Software


This course will be carried out by Stephane Javanaud.

Mr. Hubert LEJEUNE
Graduated from Ecole Nationale Supérieur d’Ingénieurs de Bretagne Sud (ENSIBS), France in 2016

Experience in the field of bolted flange joints, elastomeric seals and Finite Element Analysis.


Materials and Design volume 156 (2018): Temperature-dependent modelling of a HNBR O-ring seal above and below the glass transition temperature. (

ASME PVP 2018: Flange Gasket Behavior Characterization for Service in Arctic Environment (PVP2018-84284).


Engineer in the sealing technologies Cetim’s Lab since 2016.

Gasket testing: definition of test procedures for gasket characterization and qualification for gasket manufacturers and end-users in the field of Oil & Gas, Nuclear and chemical industry

Bolted flange connection calculation:

Training for industry on bolted flange joints and EN1591 calculation method

Registration Form

To register for the course, please complete this form and email to

Course Name: L 67: Tight Bolted Joints using EN 1591 Design Method

Course Date: TBA

Closing Date: TBA

Venue: 3 Seletar Aerospace Link, Singapore 797550

Time: TBA

Course Fee: TBA

Early Bird: TBA

Group Discount: TBA

  • Date Format: MM slash DD slash YYYY

  • Contact Details

Payment Details:

Registration form and course fees are to reach MATCOR before the closing date.
Registration will only be confirmed upon full payment.
All cheques should be made payable to “MATCOR Technology & Services Pte Ltd”.
Overseas participants are to pay in Singapore Dollar bank draft ONLY. If payment is by TELEGRAPHIC TRANSFER, please add S$70.00 for administrative and bank charges

For further information, please contact Ms. Irene Lim or Ms. Lynn Tan at +6567788285 or email us at

Cancellation & Refund:

• Any cancellation made after closing date –no refund, but delegate substitution is allowed.

• Any cancellation made before closing date –full refund.

• MATCOR reserves the right to cancel or reschedule the course, only if deemed necessary.