Devices to prevent pollution by backflow of potable water. Pipe interrupter with atmospheric vent and moving element DN 10 to DN 20. Family D, t ype B— 20 стр.
Devices to prevent pollution by backflow of potable water. Air gaps with minimum circular overflow (verified by test or measurement). Family A, type G— 14 стр.
Devices to prevent pollution by backflow of potable water. Hose Union anti-vacuum valves. DN 15 to DN 25 inclusive Family H, type B and type D. General technical specification— 26 стр.
Automatic electrical controls for household and similar use - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements— 77 стр.
Specification for automatic electrical controls for household and similar use. Particular requirements, Particular requirements for electrically operated water valves, including mechanical requirements— 46 стр.
