57 3 Siphonic Roof Drain Our North American series of drains have all been tested to ASME 112.6.9:2005 – IAPMO certified (file number 5305) Wade-Hydro
{"Image DocumentName": "Wade-HydroMax Siphonic Products", "Image ImageDescription": "3 Siphonic Roof Drain Our North American series of drains have all been tested to ASME :2005 \u2013 IAPMO certified (file number 5305) Flow Rate. Min. = 23 GPM. (Gallons per Minute ) up to. Max. = 415 GPM. Moving on to the systems component parts. The special design of the roof drain eliminates air ingress into the piping system which is empty before a storm event. The fins that protrude from the inducer prevent vortex formation and routes the water directly into the pipe below. As the water level on the roof or gutter reaches the flat inducer plate, air is effectively sealed off and cannot enter the pipe below. The drains inflow is calculated by taking the roof drain catchment area and multiplying by the design rainfall rate (which will vary according to the project location and category of risk specified by the design team) 75mm drains can be used for inflows ranging from 1.5l/s up to a maximum of 25l/s.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}