This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, hydraulic actuated Family G, type B.This European Standard is applicable to mechanical disconnectors hydraulic actuated in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.This European Standard covers the mechanical disconnec
EN 13434:2006 history
2006EN 13434:2006 Devices to prevent pollution by backflow of potable water - Mechanical disconnector, hydraulic actuated - Family G, type B