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.
- Features & Benefits
- Product Use
- Technical Data
- Performance Data
- Packaging Info
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 (introduced in 2004) standard for a secure, watertight connection.
- All OMG Hercules Drains have been certified by QAI Laboratories to conform with ASME 112.6.4 and CSA-B79-08.
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
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.
ANSI/SPRI RD-1 – is a national performance standard for retrofit roof drains. While most drains are not tested to this standard, Hercules RetroDrains exceed the standard, which requires the seal to hold a 10-ft. column of water for 24 hours without leaking.
Performance Data
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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 |