This document specifies the characteristics and the requirements of unrestricted air gap Family
A, Type A
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 factoryassembled
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 could be required to verify the efficacy of the solution in
practical use.
The AA device is intended to be used in potable water installations according to EN 806.
Registration number (WIID)
82113
Scope
This document specifies the characteristics and the requirements of unrestricted air gap Family
A, Type A
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 factoryassembled
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 could be required to verify the efficacy of the solution in
practical use.
The AA device is intended to be used in potable water installations according to EN 806.
