Description
Zurn RD2150 | Flat Sump Retrofit Roof Drain for Renovation Applications
Product Overview
The Zurn RD2150 is a retrofit roof drain engineered for roof replacement and re-roofing projects where removing the original drain body is impractical. It’s designed to fit securely inside existing drain pipes, sealing with a neoprene gasket and anchoring in place with tie-down slots and integrated fastener points.
This all-in-one retrofit solution features a 16-gauge 304 stainless steel body, Dura-coated cast iron clamp collar, stainless steel dome, and neoprene gasket with one-way gripping ribs to ensure secure, leak-resistant installation.
Key Features & Benefits
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Retrofit Ready
Ideal for roofing upgrades where the original roof drain body cannot be removed—penetrates and seals directly within the existing leader pipe. -
Durable Construction
The body is fabricated from corrosion-resistant 16-gauge Type 304 stainless steel, supported by a heavy-duty clamp collar and dome. -
One-Way Gasket Seal
Neoprene gasket with one-way gripping ribs ensures a watertight fit inside existing piping, preventing backflow and leakage. -
Secure Installation
Includes tie-down slots in the flange to fasten the drain securely during installation, even under new roofing layers and insulation. -
Available Sizes
Models include: RD2150-SS3, SS4, SS5, and SS6 to fit various leader pipe diameters.
Technical Specifications
| Feature | Detail |
|---|---|
| Body Material | 16-gauge Type 304 stainless steel |
| Gasket Type | Neoprene with one-way gripping ribs |
| Collar & Dome | Dura-coated cast iron |
| Hardware | Stainless steel |
| Application | Retrofit/replacement in roofing systems |
| Tie-Down Flange | Yes – pre-cut slots for secure fastening |
| Drain Sizes Available | 3", 4", 5", 6" pipe connection (SS3–SS6) |
Why Choose the RD2150?
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Non-Invasive Installation: Avoids the need to demolish or remove existing roof drain bodies—saves time and cost.
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Reliable Performance: Ensures a watertight, corrosion-resistant seal for both flat and pitched roofing upgrades.
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Contractor-Friendly Design: Pre-engineered for ease of insertion and fast anchoring with minimal rework.
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Leak-Resistant Solution: One-way gasket and stainless body provide lasting protection against roof water intrusion.
Frequently Asked Questions
Q: Does the RD2150 require removal of the old roof drain?
A: No. It's designed to be installed inside the existing drain pipe, making it ideal for retrofit applications.
Q: How is the drain secured?
A: It features tie-down slots in the flange and a neoprene gasket with gripping ribs to secure and seal it in place.
Q: Can it handle re-roofing over existing insulation and membrane?
A: Yes—it's specifically designed for use with modern insulation and membrane systems.
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