Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B
Edition 2023-09-15

Devices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A
Edition 2022-06-01

Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 10 to DN 50 inclusive - Family D, type A
Edition 2020-10-01

Devices to prevent pollution by backflow of potable water - Air gap with injector - Family A - Type D
Edition 2003-11-01

Devices to prevent pollution by backflow of potable water - Air gap with circular overflow (restricted) - Family A, type F
Edition 2005-09-01

Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C
Edition 2004-02-01

Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D
Edition 2005-02-01

Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
Edition 2023-07

Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B
Edition 2023-07

Devices to prevent pollution by backflow of potable water - Mechanical disconnector, direct actuated - Family G, type A
Edition 2022-05