Vortex Breaker Strainer Dome

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Get A Better Performing Drain!

The OMG Vortex Breaker Strainer Dome is designed as a retrofit upgrade option for installed OMG Hercules and Aluminum Classic Drains. The new strainer has a built-in vortex breaker that helps to provide improved flow for better rooftop performance. When upgraded with the Vortex Breaker Strainer Dome, Hercules Drains offer up to 2.5 times greater water flow than the original Hercules Drains without a vortex breaker. Which means that water is draining from the roof faster, and taking dead load weight with it.

Features & Benefits

  • Water flow is up to 2.5 times faster with the Vortex Breaker Strainer Dome compared to original Hercules Drains without the technology.
  • The Vortex Breaker Technology helps to eliminate chugging which can damage plumbing systems.
  • Bright yellow strainer domes remain visible on the roof for improved safety
  • Vortex Breaker Strainer Domes are made of heavy duty cast aluminum with is highly durable and will not rust.
  • Installation takes only a few minutes and requires only a screwdriver with a #2 square drive.
  • Designed to fit all OMG Hercules and Aluminum Classic Drains i.e. 3-, 4-, 5- and 6-inch sizes.

Interactive Comparison Chart

Application
Physical Data
Ordering Info
Downloads & Videos

Application

Vortex Breaker Strainer Domes are designed for use on OMG Hercules Drains and can be installed with just a screwdriver with a #2 square drive. Installed from the roof surface, OlyFlowRetroDrains are engineered to be installed without removing the existing plumbing or fixture while providing a watertight connection to the roof system and the existing plumbing.

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

Physical Data

FLOW RATE OF HERCULES DRAINS (GPM) WITH OMG VORTEX BREAKER STRAINER
Head of Water (in.)3-in. Hercules4-in. Hercules5-in. Hercules6-in. Hercules
1 30 43 35 28
2 74 76 94 110
3 110 188 149 243
4 138 299 295 597

 

WEIGHT OF WATER FOR GIVEN ROOF AREA (LBS)
Head of Water (in.)1 Sq. Feet5 Sq. Feet10 Sq. Feet20 Sq. Feet
1 5 130 520 2081
2 10 260 1040 4162
3 16 390 1561 6243
4 21 520 2081 8324
1 GALLON OF WATER = 8.34 POUNDS

 

  • Flow performance improvement is not linear across all drain sizes due to the one size fits all design of the strainer.
  • Flow performance is influenced by various factors such as the transition radius and seal sizing variations.
  • Drains with smaller stem diameters develop a choke point sooner than the drains with larger stem diameters thereby making the Vortex Breaker Strainer more effective on smaller drains.
  • Tested by an independent test lab in accordance to ASPE/IAPMO/ANSI Z1034-2015 Test Method for Evaluating Roof Drain Performance and conducted in accordance with Section 4.1 "Vertical-Pipe Roof-Drain Test."

Ordering Information

SKUPackagingWeightDrain Height
VTBSTR10-YW Each 3 lbs. 5 inches

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