
Devices To Prevent Pollution By Backflow Of Potable Water - Air Gap With Non-Circular Overflow (Unrestricted) - Family A - Type B
出版:Danish Standards

專家解讀視頻
Defines 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.
EN 13077 : 2018 - Identical
EN 13077 : 2018 - Identical
EN 13077:2018 - Identical