Zurn Z121-XJ Roof Drain — Vertical Expansion Joint
Dimensional data is subject to manufacturing tolerances and change without notice.
Download Specifications PDF
| Pipe Size (A) (in.) |
B (in.) | C (in.) | D (in.) | F (in.) | Approx. Weight (lbs.) |
Dome Open Area (sq. in.) |
|
| Min. | Max. | ||||||
| 2 | 6-1/2 | 8-1/2 | 3-5/8 | 5 | 2-3/4 | 30 | 103 |
| 3 | 6-1/2 | 8-1/2 | 4-5/8 | 5 | 3-1/4 | 33 | |
| 4 | 6-1/2 | 8-1/2 | 5-1/2 | 4-3/4 | 3-3/4 | 35 | |
| 6 | 6-7/8 | 8-5/8 | 7-7/8 | 5 | 5 | 45 | |
ENGINEERING SPECS: Zurn Z121-XJ 12-in. roof drain includes a dura-coated cast iron (DCCI) body with combination membrane flashing clamp / gravel guard, vertical expansion joint, and low-silhouette cast-iron dome.
Outlet Types
| Outlet Type | Available Pipe Sizes (in.) |
| Threaded (IP) | 2 - 4, 6 |
| No-Hub (NH) | 2 - 4, 6 |
Dome Options
| Dome* (4-1/4 in. height) with DCCI Body (Z) |
| Aluminum Dome (6-9/16 in. height) with DCCI Body (ZA) |
| Plain Bronze Dome (3-7/8 in. height) with DCCI Body (ZRB) |
*Regularly furnished unless otherwise specified
Available Accessories
| Acid Resistant Epoxy Coated Finish (-AR) | Galvanized Cast Iron (-G) |
| Bronze Mesh Screen Over Dome (-BS) | Roof Sump Receiver (-R) |
| Underdeck Clamp (-C) | Secondary Clamping Collar (-SC) |
| Top-Set® Roof Deck Plate (replaces underdeck clamp and roof sump receiver) (-DP) | Stainless Steel Mesh Screen Over Dome (-SS) |
| Adjustable Drain Riser Extension Assembly (from 3-5/8 to 7-1/4 in.) (-DR) | Vandal Proof Secured Top (-VP) |
| Static Extension (1 - 4 in., specify height) (-E) | Stainless Steel Perforated Gravel Guard (-84) |
| Top-Set® Adjustable Extension Assembly (-EB) | Stainless Steel Perforated Extension (-85) |
| Flush Grate (replaces dome strainer) (-FG) | 2-in. High External Water Dam (-89) |
