The objective of WSA-109 Industry Standard for Flange Gaskets and O-Rings is to define material requirements for flange gaskets and o-rings and guidelines for joining flanges commonly utilised in water supply and sewerage pipelines.
Version 3.2, which replaces Version 3.1, continues to improve and refine this Water Industry Standard. Minor editorial errata have been addressed. For a complete list of amendments refer to WSA 109:2021 And 2:2023 in Errata Notes and Amendments.
This edition of the WSA 109 has been published as an eBook using a new online template, so it may look different from previous versions. This edition also include a printable PDF version, similar to other WSAA eBook Codes.
WSA 109 Industry Standard for Flange Gaskets And O-Rings, Version 3.2 can be purchased from the WSAA Shop.
WSAA Utility Members can access their complimentary copy of the manual from their My Products page. eBook codes/manuals