L70 Sealing of Flanged Joints

Integrate the leak-tightness factor as of the design stage by using the appropriate procedures, knowing the properties of the seals and by applying the appropriate design analysis method.


Upon completion of the training, the participants will be able to carry out the following:
• describe the behaviour of a flanged joint fitted with a seal;
• specify the leak-tightness solutions (flat seals for flanged joints) based on the conditions of use;
• define standard practice for factoring leak-tightness into the design of flanged joints




Theory and laboratory demonstrations.


Engineers and technicians from Design departments, manufacturers and suppliers of seals, Quality departments, designers of pressurized equipment, project owners.


L67 – Designing joints with sealing flanges in accordance with EN 1591


  • Theory of leak-tightness
    • Units.
    • Conversion.
    • Orders of magnitude.
  • Flanged joints:
    • Parameters that affect sealing.
  • Handling and checking the tightening process:
    • Tightening procedures.
    • Tools.
    • Accuracy and dispersion of tightening.
  • Seals:
    • Description of the main categories of seals.


  • Placing and replacing a seal.
  • Leak measurement techniques.
  • Characterisation of flat seals:
    • Standards.
    • Customer procedures.
  • Calculations for flanged joints:
    • Analytical calculation principle based on the Taylor Forge method (Codap®, Codeti®, EN 13445, EN 13480, ASME, PD5500, etc.).
    • Principle of design analysis based on the method EN 1591 and presentation of the Cetim 1591 software
    • Principle of design analysis of finished elements.
  • Laboratory demonstration on flanged joints (tightening and leak-tightness measurement).


This course will be conducted by Mr. Stéphane JAVANAUD, engineer specialising in the field and providing consultancy services and technical assistance to businesses.

Mr. Stéphane JAVANAUD
Mr. Stéphane JAVANAUD

Graduated from Ecole Nationale Supérieur d’Ingénieurs de Bretagne Sud (ENSIBS), France 2016
Experience in the field of bolted flange joints, elastomeric seals and Finite Element Analysis.


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
    • Several studies around EN1591
  • Sealing interfaces calculation by FEA with elastomeric O-ring / gasket or metallic O-ring



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).

Virtual Registration Form

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

Course Name: L70 Sealing of Flanged Joints

Course Date: 2nd ,4th & 5th November 2020

Time: Singapore Time 3.30pm – 6.30pm (GMT+8), Europe Time 8.30am -11.30Pm (GMT+2):
(each day 3 hours for 3 days, total 9 hours)

Closing Date: 20th October 2020, Tuesday.

Venue: A link to join the Virtual Learning will be sent to you upon confirmation and receipt of fees.
Limited seats are available for best results
Registrations will be confirmed in writing and is subject to availability

Course Fee: SGD 1,080.00 OR EUR 680.00 OR USD 800.00 per person (exclude GST)

Early Bird: Registration must reach us on or before 2nd October 2020, Friday:
SGD 972.00 OR EUR 610.00 OR USD 720.00 per person (exclude GST)

Group Discount: With minimum 3 participants from the same company:
SGD 972.00 OR EUR 610.00 OR USD 720.00 per person (exclude GST)

  • Our Accounts will advise if GST is applicable. Participants shall bear all bank charges.
  • 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.
  • Direct internet banking payment to MATCOR Technology & Services Pte Ltd, Bank: Development Bank of Singapore, Bank Code: 7171, Branch Code: 032, Swift Code: DBSSSGSG, Bank Address: 1 Kim Seng Promenade, #02-32, Great World City, Singapore 237994, Account No/IBAN: 032-004152-3.
  • All cheques should be made payable to “MATCOR Technology & Services Pte Ltd” and mailed to 3 Seletar Aerospace Link Singapore 797550, Or
  • Overseas participants may choose to pay in EUR or USD.
  • Participants shall bear all bank charges for payments.

For clarification or inquiries please contact Ms. Pei Shyan Ng or Ms. Irene Lim at +65 67788285 or send an email to

Cancellation & Refund:

  • Any cancellation made after closing date – no refund, but delegate substitution is allowed.
  • Any cancellation made before closing date will receive full refund.
  • MATCOR reserves the right to cancel or reschedule the course, only if deemed necessary