ILO Home
Go to the home page
Site map | Contact us Français | Español

CISDOC database

Document ID (ISN)101878
CIS number 03-842
ISBN(s) 3-89701-835-7
Year 2002
Convention or series no. Fb 957
Author(s) Poppendick K.E., Behrens H., Janßen W.
Bundesanstalt für Arbeitsschutz und Arbeitsmedizin
Title Study on leakage in flat gaskets for manhole covers
Original title Leckageuntersuchungen an Flachdichtungen für Mannlochverschlüsse [in German]
Bibliographic information Wirtschaftsverlag NW, Postfach 10 11 10, 27511 Bremerhaven, Germany, 2002. 88p. Illus. 21 ref. Price: EUR 11.00.
Abstract The leak-proof properties of seals depend on numerous factors, some of which are relatively complex. This report presents the results of a study on the leakage behaviour of flat static joints, and more particularly of bolted manhole cover gaskets. Three series of tests were conducted: leakage behaviour as a function of bolt tightening procedures, using different types of gaskets and with the systematic change of compressive load per unit area. Findings show that the specific rates of leakage in the nine types of flat gaskets studied are influenced considerably by the type of sealing material, the conditions of use and by the mechanical properties of the equipment flange used. The report will help users select suitable sealing.
Descriptors (primary) protection against leakage; gaskets; chemical safety
Descriptors (secondary) report; leakage testing; pressure vessels
Document type E - Books, reports, proceedings
Country / State or ProvinceGermany
Subject(s) Pressure vessels and systems
Broad subject area(s) Fires, explosions and major hazards
Browse category(ies) Compressed gases and pressure vessels