Pipelines in Process Systems

VCI Guideline for Bolted Flanged Joint Assembly in Process Plants

The practical assistance of the VCI for the installation and dismantling of metallic flange connections on piping was updated in March 2016: Annexes A and C have been corrected or updated.

There are many requirements to be taken into account when assembling flange connections on piping. - Photo: © Andrei Merkulov - Fotolia.com
There are many requirements to be taken into account when assembling flange connections on piping. - Photo: © Andrei Merkulov - Fotolia.com

The guide was developed in 2011 under the leadership of the Industrial Practices Interest Group (IGR) e.V. and the cooperation of chair representatives as well as representatives of industrial companies with the support of the VCI.

In May 2014, it was revised and updated, particularly in the area of normative referrals.

The most recent update from March 2016 includes correctives/updates to attachments A and C: In Appendix A correction in the table, 2nd column: PN10+PN25 changed to PN10-PN25. Adsupplemented in Appendix C note on QSmax value investigation.

With the application of this document, the requirements of the VDI 2290 in terms of the management system and the leakage classes to be adhered to are met. In addition to the presentation of normative references and terms, technical and organizational requirements are presented and in particular the assembly process is described in detail. The associated annexes include a short instruction for the assembly staff (Annex A), documentation for the examination of flange connections (Annex B) and calculation bases for the identified suit moments (Annex C).

The guide itself (PDF file; 21 pages) and associated attachments can be found in the download area in the head of this page.

Liability notice

This VCI guide to the assembly of flange connections in process facilities ("VCI Guideline for Bolted Flanged Joint Assembly in Process Plants") in no case absolves it from the obligation to comply with legal requirements. The guide was prepared with great care. Nevertheless, the authors and the VCI do not accept any liability for the accuracy of the information, hints, advice or for any printing errors. For any consequences, no claims can therefore be made, neither against the author nor against the VCI. This does not apply if the damages were caused intentionally or grossly negligently by the VCI or its vicarious agents.

For questions or suggestions, please feel free to contact us.

Contacts

Thilo Höchst

E-Mail: hoechst@vci.de