® 36 INSTALLATION: the valve is to be installed directly on waste pipes by putting it into a well in order to ease both inspection and service, respecting flow direction (indicated on the top) by installing the socket upstream. The body of the valve must be horizontal, perpendicular to the flow and with a maximum angle of 2,5 degrees in flow direction. Pipes and fittings to be used for assemblage must company with EU regulation; it is recommanded the exit size not to be smaller than entry one. SERVICE: device inspection must be performed twice a year through the control screw top. Insidevalve cleaning is carried out by removing the top. A N T I - F L O O D V A L V E ® Idrostop anti-flood valve, available in two versions – gluing or with gasket – are anti-floodingdevices which close automatically when a reflow occurs and allow a normal drainage when thereflow stops. Installation can be made in flowing-back-water drainage systems working with gravity,inside and outside buildings for public, residential, commercial, industrial application. Idrostop valve must be put on the connection between private and public sewage net.
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