BS EN 13079:2025 - Devices to Prevent Pollution by Backflow of Potable Water

Introducing the BS EN 13079:2025, a comprehensive standard that sets the benchmark for devices designed to prevent pollution by backflow of potable water. This standard is essential for ensuring the safety and purity of drinking water by employing an air gap with an injector, classified under Family A, Type D.

Key Features and Benefits

• Standard Number: BS EN 13079:2025
• Pages: 16
• Release Date: November 10, 2025
• ISBN: 978 0 539 30955 3
• Status: Standard

This standard is a must-have for professionals in the water management and plumbing industries, providing a detailed framework for the design, installation, and maintenance of devices that prevent backflow contamination. By adhering to this standard, you ensure compliance with the latest safety regulations and contribute to the protection of public health.

Why Choose BS EN 13079:2025?

The BS EN 13079:2025 standard is meticulously crafted to address the critical issue of backflow prevention. Backflow can lead to serious contamination of potable water supplies, posing health risks to consumers. This standard provides a robust solution by specifying the requirements for an air gap with an injector, a proven method to prevent backflow effectively.

Comprehensive Coverage

With 16 pages of detailed guidelines, this standard covers all aspects of backflow prevention devices, from design specifications to installation procedures. It ensures that every device meets the highest standards of safety and efficiency, providing peace of mind to both installers and end-users.

Up-to-Date and Relevant

Released on November 10, 2025, the BS EN 13079:2025 is the latest iteration in backflow prevention standards. It incorporates the most recent technological advancements and industry practices, ensuring that your systems are not only compliant but also at the forefront of innovation.

Internationally Recognized

As a part of the BS EN series, this standard is recognized and respected worldwide. It aligns with international best practices, making it an ideal choice for global operations and projects that require adherence to stringent safety protocols.

Applications and Use Cases

The BS EN 13079:2025 standard is applicable across a wide range of industries and settings, including:

• Municipal water supply systems
• Commercial and residential plumbing installations
• Industrial facilities with potable water systems
• Healthcare facilities where water purity is critical

By implementing devices that comply with this standard, you can significantly reduce the risk of water contamination, ensuring safe and clean water for all users.

Conclusion

The BS EN 13079:2025 is an indispensable resource for anyone involved in the design, installation, or maintenance of water systems. Its comprehensive guidelines and international recognition make it a cornerstone of water safety and quality assurance. Invest in this standard to safeguard your water systems against backflow contamination and uphold the highest standards of public health and safety.

BS EN 13079:2025

This standard BS EN 13079:2025 Devices to prevent pollution by backflow of potable water — Air gap with injector — Family A — Type D is classified in these ICS categories:

• 13.060.20 Drinking water
• 23.060.99 Other valves
• 91.140.60 Water supply systems

This document specifies the characteristics and the requirements of air gap with injector Family A, Type D for nominal flow velocity not exceeding 3 m/s. Air gaps are devices for protection of potable water in water installations from pollution by backflow. This document is applicable to air gaps in factory-assembled products and to constructed air gaps in situ and specifies requirements and methods to verify and ensure compliance with this document during normal working use. The fluid in the receiving vessel is assumed to have similar properties to the water supply. Where this is not the case, additional care or tests can be required to verify the efficacy of the solution in practical use. The AD device is intended to be used in potable water installations according to EN 806 (all parts).