• Heavy-Duty Forged Cast Iron: Cast from commercial-grade iron to deliver exceptional structural strength, ensuring high crush resistance and long-term durability in demanding industrial roofing applications.
  • Watertight Membrane Compression: Engineered to anchor and compress roofing membranes or flashing flatly against the drain body flange, eliminating gaps to establish an absolute watertight seal.
  • Signature Green Protective Coating: Finished with a durable, weather-resistant green Duco coating that protects the underlying metal from rust, corrosion, standing water, and typical jobsite grime.
  • Precise Josam 415 Bolt Geometry: Features an exact 14-3/4" outside diameter with a specialized bolt pattern, measuring 11-1/2" bolt-to-bolt at 180-degrees and 8" between adjacent bolt positions for a perfect flush fit.
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Price: $439.95
    Item #316-415-RING
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    Description

    The Josam 415 Cast Iron Clamp Ring is constructed from coated cast iron in a green finish and is designed for use with select Josam roof drain bodies. It features an outside diameter of 14-3/4 inches, a 180° bolt-to-bolt diameter of 11-1/2 inches, and a bolt-to-bolt spacing of 8 inches. The ring securely clamps the roofing membrane or flashing to the drain body, creating a watertight seal.

    Key Features

    • Material: cast iron
    • Color: green
    • Outside diameter: 14-3/4 inches
    • 180° bolt-to-bolt diameter: 11-1/2 inches
    • Bolt-to-bolt spacing: 8 inches

    Specifications

    Manufacturer: Josam Company

    Model/SKU: 415

    Material: Cast iron (coated)

    Color: Green

    Outside diameter: 14-3/4 inches (lip to lip) 

    180° bolt-to-bolt diameter: 11-1/2 inches 

    Bolt-to-bolt spacing: 8 inches 

    Quantity: Kits sold individually

    Gate: Not included (sold separately)

    How To

    • Remove any existing clamp ring from the compatible Josam drain body.
    • Clean the drain flange and ensure the surrounding membrane or flashing is properly positioned.
    • Place the 415 Cast Iron Clamp Ring over the drain body, aligning its bolt holes with the body’s bolt pattern.
    • Secure the clamp ring using the appropriate bolts or fasteners per manufacturer instructions, ensuring the membrane or flashing is evenly clamped.
    • Inspect the installation to ensure the ring is seated evenly and the roofing membrane or flashing is secure without gaps or lifting.

    FAQs

    Q: What is the outside diameter of the 415 Cast Iron Clamp Ring?
    A: The outside diameter is 14-3/4 inches.

    Q: What are the bolt-to-bolt dimensions for this ring?
    A: The ring’s 180° bolt-to-bolt diameter is 11-1/2 inches and the bolt-to-bolt spacing is 8 inches.

    Q: Does this ring include the drain dome or drain body?
    A: No. The 415 Cast Iron Clamp Ring is sold as an individual component and does not include the dome or drain body.

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