Patented Roof Drains

We will provide a diagram to show you how it works.

Patented roof drains. Roof drainage requirements specifications. Google patents an exemplary embodiment providing one or more improvements includes a positive acting sensor which detects the flow of water through a flat roof secondary or emergency roof drain. Zurn drains offer history and. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows.

Zurn currently produces the greatest number of variations for roof drains with many options to choose from. It s basically a primary roof drain and an overflow combined into one drain. Zurn s oldest catalog on record dates back to 1951 displaying no. We describe online roof drainage requirements calculators pertinent plumbing standards a table approach to looking up roof drainage.

An old patent by e. The distinguishing feature of a siphonic roof drain is the air baffle. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Roof drains are used to collect rainfall water which travels to the sewage or drainage system through available plumbing lines.

Reiger et al was found from 1935 displaying inventor melvin a. Froet industries began by manufacturing their patented bi functional roof drain. This article describes several methods for determining the drainage capacity required to safely drain water off of building roofs whether from rainfall melting snow or a combination of those water sources. In one embodiment the strainer contains a peripheral flange which is rolled into the large horizontal flange of the base during fabrication.

Other than the baffle a siphonic roof drain has the same features as a traditional roof drain including a drain body flashing ring dome strainer and fastening hardware. A roof drain comprising a basin member that is adapted to be set in a roof a caulking ring arranged inside of the upper end portion of said basin member and spaced away from the side wall of same. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. Siphonic roof drain anatomy siphonic roof drains from jay r.

The attachment means is characterized by being simple and permanent. Always remember to check your chosen roof drain periodically because it can become jammed with ice garbage or other unwanted items. Co a siphonic roof drain looks much like a traditional roof drain. The distinguishing feature of a siphonic roof drain is the air baffle.