Smith Universal Membrane Clamping Collar

The replacement universal drain ring is designed for retrofit roof applications where the existing drain body will continue to be used.

The bolting lugs match the bolt pattern of most common roof drain bodies and conform to the surface angles of the flange. This allows you to easily replace the ring and offers adequate pressure on the membrane to ensure a watertight seal. 

• Made of cast iron.
• Designed for most 15-in. to 16-in. roof drain bodies
• Bolt pattern range: 7.25 to 10.75-in. diameters

It is recommended to extend roof membrane into the sump of the existing roof drain body.

Regularly Furnished

• Duco-coated universal cast iron membrane clamping collar mounting hardware.

Optional Materials

• Galvanized Cast Iron Collar (-CG)

Variations

• Perforated stainless steel gravel guard (specify height)
• Solid water dam collar (-WD) (specify height)
• Vandal proof dome (-U)