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Hercules® Roof Drain

Hercules RetroDrains, the industry’s most popular retrofit drain, are available in 3-, 4-, 5- and 6-inch sizes and with a variety of options to support any project, including OMG’s exclusive Vortex Breaker Strainer Dome, which can increase flow by up to 2.5 times (see Hercules-Plus), TPO or PVC coated flange for direct membrane attachment, and with a copper stem and flange for more corrosive environments.

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Features & Benefits

Features & Benefits

  • Saves time and money by allowing easy installation from the rooftop without disturbing occupants.
     
  • Cast aluminum strainer dome and clamping ring that will not rust for long term durability and performance.
     
  • U-Flow Seals exceed the ANSI/SPRI RD1 standard for a secure, watertight connection.
Product Use

Product Use

Hercules RetroDrains are designed to replace existing new construction drains in re-roofing applications. Installed from the roof surface, Hercules RetroDrains are engineered to be installed without removing the existing drain fixture. Hercules RetroDrains have a mechanical seal for direct connection to existing PVC or cast iron plumbing.

As with all building materials, it is the responsibility of the installer to review product use with a design professional to confirm safety, compatibility and acceptance with the roof cover manufacturer and local building codes.

Technical Data

Technical Data

Drain Body:   11 gauge (.125-in.) spun aluminum or copper
Seal:   Watertight U-Flow mechanical seal (requires U-Flow screwdriver for installation)
Flange:   17.5-inch diameter with sump area. TPO and PVC coated options available.
Strainer Dome:   Cast aluminum, aluminum SuperDome or Vortex Breaker dome
Stem:   12-in. length
Clamp Ring:   Cast aluminum where applicable. *Not provided on TPO or PVC coated drains.

Packaging Info

Packaging Info

Aluminum Hercules

Cat. No. Description Size (in) Packaging Quantity Dimensional Weight (lbs)
HDAL3A Aluminum Herc. w/ Clamping Ring 3 Each 27
HDAL4A Aluminum Herc. w/ Clamping Ring 4 Each 27
HDAL5A Aluminum Herc. w/ Clamping Ring 5 Each 27
HDAL6A Aluminum Herc. w/ Clamping Ring 6 Each 27

TPO Coated Hercules

Cat. No. Description Size (in) Packaging Quantity Dimensional Weight (lbs)
HDTPO3A Herc. w/ TPO Coated Flange 3 Each 27
HDTPO4A Herc. w/ TPO Coated Flange 4 Each 27
HDTPO5A Herc. w/ TPO Coated Flange 5 Each 27
HDTPO6A Herc. w/ TPO Coated Flange 6 Each 27

PVC Coated Hercules

Cat. No. Description Size (in) Packaging Quantity Dimensional Weight (lbs)
HDPVC3A Herc. w/ PVC Coated Flange 3 Each 27
HDPVC4A Herc. w/ PVC Coated Flange 4 Each 27
HDPVC5A Herc. w/ PVC Coated Flange 5 Each 27
HDPVC6A Herc. w/ PVC Coated Flange 6 Each 27

Copper Hercules

Cat. No. Description Size (in) Packaging Quantity Dimensional Weight (lbs)
HDCU3A Copper Herc. w/ Clamping Ring 3 Each 27
HDCU4A Copper Herc. w/ Clamping Ring 4 Each 27
HDCU5A Copper Herc. w/ Clamping Ring 5 Each 27
HDCU6A Copper Herc. w/ Clamping Ring 6 Each 27