Hot Spot BS 7775:2005 Penstocks for use in water and other liquid flow applications systematic review

What is it?

BSI has announced the systematic review of BS 7775:2005 Penstocks for use in water and other liquid flow applications- specifications. This standard specifies the design and performance criteria for use in wastewater, water supply and other liquid flow applications and also sets out the requirements for packaging and installation of penstocks.

If members were interested in the specification of penstocks and wanted to support the revision of this standard, they were asked to contact the BVAA by the end of March 2026.

Why is it Important?

This standard does not have a European or ISO equivalent and so is likely to continue as a current standard for penstock valves. Previously members of the responsible BSI committee PSE 18/2 have expressed interest in revising this standard and so it may receive a positive vote for revision following the review period. Specific areas of concern to update are material standard references and welding specifications.

Continuous Improvement - Did we miss anything?

Hot Spots are intended to alert members and provide a brief overview of new standards, activities or procedures that are being introduced in the industry. If there is key information missing that would be helpful, please let us know so that we can improve our future service.

Please Note: This Hotspot is for information purposes, and we invite comments from BVAA members only. Please also note that at time of publication ballots may be closed. For more information, please contact the Secretariat.

BVAA Members: Did you know we have a hotspot tab on the BVAA website? Head over to www.bvaa.org.uk/login-here.asp and log into the member only area. You then need to select ‘Hotspots’ for the latest. For information on how to access the member only area of the website please contact jane@bvaa.org.uk. 

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