Patented Roof Drains

The distinguishing feature of a siphonic roof drain is the air baffle.

Patented roof drains. It s basically a primary roof drain and an overflow combined into one drain. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. And there is also the patented backwater valve. The distinguishing feature of a siphonic roof drain is the air baffle.

The attachment means is characterized by being simple and permanent. This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Froet industries began by manufacturing their patented bi functional roof drain. 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.

Zurn drains offer history and. Co a siphonic roof drain looks much like a traditional roof drain. An old patent by e. Reiger et al was found from 1935 displaying inventor melvin a.

In one embodiment the strainer contains a peripheral flange which is rolled into the large horizontal flange of the base during fabrication. We describe online roof drainage requirements calculators pertinent plumbing standards a table approach to looking up roof drainage. Always remember to check your chosen roof drain periodically because it can become jammed with ice garbage or other unwanted items. 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.

We will provide a diagram to show you how it works. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. Zurn currently produces the greatest number of variations for roof drains with many options to choose from. 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.

Roof drains are used to collect rainfall water which travels to the sewage or drainage system through available plumbing lines. An improved roof drain having a wide flange a base and a means to secure attachments such as strainers to the base. Roof drainage requirements specifications. Siphonic roof drain anatomy siphonic roof drains from jay r.