Z131S Siphonic Overflow Roof Drain

ZURN Z131S Siphonic Overflow roof drain with Dura-Coated cast iron drain body and 2 [51] high external combination membrane flashing clamp/overflow dam. Complete with Dura-Coated cast iron air baffle and deck plate. Zurn Z131S meets ASME A112.6.9/CSA B79.9 siphonic roof drain standard.

Features:

• Gain more useable building space with non-sloped, horizontal piping that takes up less space running below the roof as compared to a gravity roof drain system
• Drive building costs down with fewer drains, fewer downspouts, and smaller pipe diameters without sacrificing system performance.
• Higher flow velocities make system self cleaning without the need for additional cleanouts
• System design can help earn LEED credits for materials, innovation, sustainable sites, water efficiency, regional priority and atmosphere
• Design allows for flexible vertical stack placement based on architectural needs
• Near silent operation when siphonic roof drain is under full bore flow condition
• Integrated deck plate cuts roof drain installation time in half as compared to traditional installation methods