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Zurn Z505 - 12" Heavy-Duty Drain

Zurn Z505 - 12" Heavy-Duty Drain

Zurn Z505 - 12" Heavy-Duty Drain

$2,008.20


FREE SHIPPING
SKU Z505-2NH

The Zurn Z505 is a 12-inch heavy-duty area drain engineered for demanding environments where high flow and durability are essential. With features that support longevity, ease of installation, and reliable drainage, it is well suited for plazas, industrial floors, and other high-use surfaces.

Key Features

  • Dura-Coated Cast Iron Body & Bottom Outlet: Rugged construction resists corrosion while the bottom outlet supports straightforward drainage configurations.

  • Seepage Pan & Deep-Flange Slotted Grate: Integrated seepage pan helps capture edge flows; the heavy-duty grate offers strong support under load and efficient water entry.

  • Combination Membrane Flashing Clamp & Frame: Ensures secure installation and waterproof sealing, reducing risk of leaks at the drain interface.

Downloads:

Product Codes: Z505-3IC, Z505-4IC, Z505-6IC, Z505-3IG, Z505-4IG, Z505-6IG, Z505-3IP, Z505-4IP, Z505-6IP, Z505-3NH, Z505-4NH, Z505-6NH, Z505-3NL, Z505-4NL, ZB505-3IC, ZB505-4IC, ZB505-6IC, ZB505-3IG, ZB505-4IG, ZB505-6IG, ZB505-3IP, ZB505-4IP, ZB505-6IP, ZB505-3NH, ZB505-4NH, ZB505-6NH, ZB505-3NL, ZB505-4NL, ZN505-3IC, ZN505-4IC, ZN505-6IC, ZN505-3IG, ZN505-4IG, ZN505-6IG, ZN505-3IP, ZN505-4IP, ZN505-6IP, ZN505-3NH, ZN505-4NH, ZN505-6NH, ZN505-3NL, ZN505-4NL,

Frequently Asked Questions

View Our Full Selection of Zurn Drains →

Shipping

  • All items ship for free (standard ground, see map)
  • Call: (800) 604-5537 for pricing and shipping questions. Shipping estimates shown on the map pertain to this specific product only.
  • Orders typically ship in 1-3 business days. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.
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Zurn Z505 – 12" Heavy-Duty Drain

A 12-1/4" (nom.) heavy-duty area drain with a Dura-Coated cast-iron body, bottom outlet, seepage pan, and a combination membrane flashing clamp & frame—finished with a deep-flange slotted grate for traffic-rated hardscapes.

In technical terms, the Zurn Z505 is a rugged, membrane-ready drain that couples a deep-flange grate to a cast-iron body for long service life. In plain English: it’s a tough point drain that integrates cleanly with waterproofing and keeps decks, ramps, plazas, and industrial slabs draining efficiently.

Zurn Z505 installation schematic showing body, clamp/frame, seepage pan, and outlet
Z505 – Typical Installation Detail

Key Features

  • 12-1/4" diameter top with heavy-duty deep-flange slotted grate for reliable inflow under traffic.
  • Dura-Coated cast-iron body with bottom outlet for durability and serviceability.
  • Seepage pan plus flashing clamp & frame provide a clean, secure waterproofing tie-in.
  • Open area (grate): ≈ 30 in² for efficient intake at low points.
  • Approx. assembly weight: ~38–40 lb depending on configuration.

Where Z505 Excels

Specify Z505 for parking decks, entry ramps, plazas, loading areas, and light-industrial floors where membrane integration, impact resistance, and fast draw-down are critical. The deep-flange grate resists rocking while the clamp/frame maintains a watertight detail.

Options & Finishes (Snapshot)

  • Outlets: NH No-Hub, NL Neo-Loc, IP Threaded; selected IC/IG variants.
  • Pipe sizes: typically 2", 3", 4", 6" (by outlet family).
  • Prefixes (top finishes): Z cast iron, ZB polished bronze, ZN polished nickel-bronze.
  • Popular suffixes: -DG Duresist ductile-iron grate, -TS top secured, -VP vandal-proof hardware, -Y sediment bucket, -AR acid-resist epoxy, -G galvanized, -TC Neo-Loc test cap (for NL).
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Zurn – Engineered Drainage for Demanding Sites
Zurn Z505 dimensional schematic with heavy-duty slotted grate, clamp/frame, and seepage pan
Z505 – Dimensional Schematic

Specifications at a Glance

Top: 12-1/4" round, heavy-duty deep-flange slotted grate

Body: Dura-Coated cast iron; bottom outlet

Waterproofing: Seepage pan + combination flashing clamp & frame

Open area: ≈30 in² (verify per submittal)

Outlets: NH / NL / IP (IC/IG on select builds), 2"–6" by outlet family

Finishes: Z (CI), ZB (PB), ZN (PNB)

Always confirm final dimensions, load rating, outlet availability, and furnish on the project submittal.

Installation Highlights

1) Set & Anchor

Place the body to rough elevation; anchor per detail; verify positive slope toward the drain across the slab or paver bed.

2) Waterproofing Tie-In

Integrate the seepage pan and clamp/frame with the membrane; protect the assembly during pours or overlays.

3) Commission & Maintain

Install/secure the grate; consider a -Y sediment bucket near landscaping or grit sources; schedule pre-storm clean-outs.

Case Study: Ramp Ponding at a Municipal Deck

A city parking deck had chronic ponding at slope transitions after resurfacing. The retrofit standardized on Zurn Z505 drains with 4" No-Hub outlets, -DG ductile-iron grates, and -TS secured tops. Crews integrated membranes via the clamp/frame and added -Y sediment buckets at planter edges. Result: faster draw-down during storms and fewer downstream jetting calls through the rainy season.

Frequently Asked Questions

What does “heavy-duty” mean here?
The grate and frame are engineered for frequent wheel loads and impact. For even higher loads, consider extra-heavy-duty models with ductile-iron (-DG) grates.
Which outlet connection should I specify?
Match your system: NH for cast-iron, NL for compression, IP for threaded steel; selected IC/IG options are available. Typical pipe sizes are 2", 3", 4", and 6" depending on the outlet family.
Do I need a sediment bucket?
Use -Y where debris load (sand, leaves) is high or maintenance intervals are longer. It traps material before it reaches the line and speeds clean-outs.