If you have difficulty in submitting comments on draft standards you can use a commenting template and email it to admin.start@bsigroup.com. The commenting template can be found here.
Standards Development
The project will be a revision and will aim to make the standard more comprehensive and applicable to modern industry needs. In particular the project intends to:
- Update references to align with current standards.
- Provide a clearer definition of what constitutes a penstock including the applicability of different sizes.
- Update the design, manufacturing, testing and inspection requirements to incorporate three distinct construction materials: cast iron, fabricated materials, and composite plastics.
- Align the Standard with the essential requirements of the Machinery Directive (MD).
The existing standard, published in 2005, is considered outdated for several reasons:
- It references many standards that have since been withdrawn.
- The current definition of a penstock lacks clarity, which affects usability.
- The standard does not cover the three main types of construction materials used today: cast iron, fabricated, and composite plastics.
- The Environment Agency uses bespoke penstock sizes that are difficult to apply within the current standard framework.
Updating the standard will ensure it remains relevant, practical, and aligned with the latest industry practices and regulatory requirements. This revision will help users and regulators in the water and liquid flow sector avoid the need to consult multiple industry standards alongside BS 7775: 2005, thereby simplifying compliance and application.
Required form fields are indicated by an asterisk (*) character.
You are now following this standard. Weekly digest emails will be sent to update you on the following activities:
You can manage your follow preferences from your Account. Please check your mailbox junk folder if you don't receive the weekly email.
You have successfully unsubscribed from weekly updates for this standard.
Comment by: