BS EN 13077:2023

$102.76

Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B

Published By	Publication Date	Number of Pages
BSI	2023	22

Guaranteed Safe Checkout

Categories: 13.060.20 - Drinking water, BSI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

This document specifies the characteristics and the requirements of air gap with non-circular overflow (unrestricted) Family A, Type B 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 applies 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 water. Where this is not the case, additional care or tests could be required to verify the efficacy of the solution in practical use. The AB device is intended to be used in potable water installations according to EN 806 (all parts).

PDF Catalog

PDF Pages	PDF Title
2	undefined
7	1 Scope 2 Normative references 3 Terms and definitions
9	4 Designation 5 Symbolization 6 Materials 7 Requirements 7.1 General
10	7.2 Characteristics and tests 7.2.1 General 7.2.2 General tolerances and measurements 7.2.3 Accuracy of measuring instruments 7.2.4 Measurements 7.3 Water inlet device
12	7.4 Overflow arrangements
14	7.5 Air gap distance A 7.5.1 General 7.5.2 Single supply
15	7.5.3 Multiple supplies 7.5.4 Backflow/back pressure 7.6 Verification 7.6.1 Procedure for verification by test
16	7.6.2 Procedures for verification by calculation
17	8 Marking 9 Technical documents
18	Annex A (informative)Relationship between h and l for air gap Family A, Type B with rectangular overflow
19	Annex B (normative)Vacuum Test B.1 Apparatus B.2 Procedure
20	B.3 Requirement

Additional information

Status	Definitive
Pages	22
Publication Date	2023-03-09
ISBN	978 0 539 18707 6
Standard Number	BS EN 13077:2023
Title	Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B
Identical National Standard Of	EN 13077
Replaces	BS EN 13077:2018
Descriptors	Water, In-situ construction, Pipes, Pollution control, Pipework systems, Anti-siphonage systems, Prefabricated parts, Fluid inlets, Potable water, Pollution, Water pollution, Flow control, Water supply engineering, Water supply (buildings), Overflows, Valves
Publisher	BSI
Committee	B/504/-/14
ICS Codes	13.060.20 - Drinking water

Preview PDF


PDF Format	Searchable	Printable	Preview Now

BS EN 13077:2023

PDF Catalog

Related products