RD-700 Dual Outlet Roof Drain/Overflow

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RD-700 Dual Outlet Roof Drain/Overflow

Primary Meets Overflow in One Unique Drain Design

A problem can often be looked at from more than one angle. Take roof drainage for example. One view might focus on limiting the number of roof penetrations for structural or insulation purposes while another’s thoughts might run to speeding up the installation process. We have both issues covered with the new RD-700 Dual Outlet Roof Drain. The RD-700 is an epoxy coated, cast iron, dual outlet roof drain/overflow combination that installs with a single roof penetration, making it an automatic first choice for both engineering specification and contractor preference.

Benefits

Dual drain design reduces the number of roof penetrations per site
Fewer drains to install saves contractors time and money
Combination drain means contractor can carry smaller inventory

Specifications
Features
In-Depth

Specification

Deck opening: 18-1/2in.(47mm) x 10-1/2in.(267mm)
With Sump Receiver: 22in.(559mm) x 14in.(356mm)

Materials

Epoxy coated cast iron

Superior epoxy coated cast iron
Integral gravel stop
4 in. (102mm) high internal overflow standpipe
Secured ductile iron dome

Watts' RD-700 – Two Roof Drains in One Engineered Fixture

Roof drains carry rainwater from commercial buildings to avoid water seeping down basement walls or under slab foundations. The RD-700 is an original Watts design, which can replace any competitor’s primary and overflow roof drain combination. It is used on flat roofs of any construction (other than poured in place) where the building’s drainage design needs to account for both typical drainage into the normal storm water sewer system and occasional emergency overflow. The low profile secured ductile iron dome allows for rapid drainage of rainwater while still protecting the drain from debris. The overflow drain only receives water when the back-up is greater than the setting of the standpipe.

Installed with a single roof penetration, the RD-700 has significant functional and labor saving advantages over competitive designs, eliminating either an excessively large penetration, or one of excessive depth, or in some cases a less than attractive exterior profile. This is a tremendous product for new building construction. Presented at the outset of new projects, it makes an attractive choice to satisfy the specific needs of both contractor and engineer.

Watts