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Zurn Z520 - 9" Adjustable Heavy-Duty Drain

Zurn Z520 - 9" Adjustable Heavy-Duty Drain

Zurn Z520 - 9" Adjustable Heavy-Duty Drain

$1,308.48


FREE SHIPPING
SKU Z520-2NL

The Zurn Z520 is a 9-inch diameter adjustable area drain engineered for robust performance in demanding surface drainage applications. Designed for plazas, industrial floors, and high-flow zones, it offers durability, flexibility, and smart installation features.

Key Features

  • Dura-Coated Cast Iron Body with Bottom Outlet
    Sturdy construction resists corrosion and structural stress while providing a reliable drainage path.

  • Seepage Pan & Adjustable Extension Frame
    Captures peripheral water and allows the drain head to be set to the exact finish floor elevation.

  • Heavy-Duty Deep-Flange Slotted Grate
    Supports load demands while maintaining strong water intake; available in cast iron, polished bronze, or polished nickel bronze finishes.

Downloads:

Product Codes: Z520-2IC, Z520-3IC, Z520-4IC, Z520-2IG, Z520-3IG, Z520-4IG, Z520-2IP, Z520-3IP, Z520-4IP, Z520-2NH, Z520-3NH, Z520-4NH, Z520-6NH, Z520-2NL, Z520-3NL, Z520-4NL, ZB520-2IC, ZB520-3IC, ZB520-4IC, ZB520-2IG, ZB520-3IG, ZB520-4IG, ZB520-2IP, ZB520-3IP, ZB520-4IP, ZB520-2NH, ZB520-3NH, ZB520-4NH, ZB520-6NH, ZB520-2NL, ZB520-3NL, ZB520-4NL, ZN520-2IC, ZN520-3IC, ZN520-4IC, ZN520-2IG, ZN520-3IG, ZN520-4IG, ZN520-2IP, ZN520-3IP, ZN520-4IP, ZN520-2NH, ZN520-3NH, ZN520-4NH, ZN520-6NH, ZN520-2NL, ZN520-3NL, ZN520-4NL,

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 Z520 – 9" Adjustable Heavy-Duty Drain

The Z520 is a 9" round, adjustable heavy-duty area drain built around a Dura-Coated cast-iron body with a bottom outlet, seepage pan, and a combination membrane flashing clamp & adjustable frame—finished with a heavy-duty slotted/tractor grate for traffic-rated performance on decks, ramps, plazas, and industrial slabs.

In technical terms, Z520 gives you a 9" top with an adjustable extension frame so you can fine-tune the grate elevation after pours, overlays, or paver set. It’s a tough, serviceable drain that ties neatly into waterproofing and helps you eliminate trip edges at finished grade.

Zurn Z520 9-inch adjustable heavy-duty drain schematic showing adjustable frame, clamp, and seepage pan
Zurn Z520 – Dimensional & Adjustment Schematic

Key Features

  • 9" round top with heavy-duty slotted/tractor grate for reliable inflow under frequent traffic.
  • Adjustable frame enables precise finish-grade alignment to pavers, toppings, or overlays.
  • Dura-Coated cast-iron body and bottom outlet for long service life.
  • Seepage pan + flashing clamp (with seepage holes) for clean waterproofing tie-in.
  • Outlet families: NH (No-Hub), NL (Neo-Loc), IP (Threaded) and select IC/IG variants; common sizes 2", 3", 4" (verify per submittal).
  • Top finishes (prefix): Z (cast iron), ZB (polished bronze), ZN (polished nickel-bronze).

Where Z520 Excels

Specify Z520 for parking decks, entry ramps, courtyards, and light-industrial floors where height adjustability and durability matter. The adjustable frame prevents rocking and trip points, and the heavy-duty grate stands up to carts and wheel loads.

Popular Options

  • -TS top secured; -VP vandal-proof hardware for public zones.
  • -Y sediment bucket (debris capture); -P trap-primer connection.
  • -DG Duresist (ductile-iron) grate; -AR acid-resist epoxy; -G galvanized coating.
Zurn brand logo
Zurn – Engineered Drainage for Demanding Sites
Zurn Z520 components: heavy-duty grate, adjustable frame and clamp, seepage pan, and drain body
Z520 – Components & Assembly Overview

Specifications at a Glance

Top: 9" round, heavy-duty slotted/tractor grate

Body: Dura-Coated cast iron; bottom outlet

Adjustment: Adjustable extension frame for finish-grade tuning

Waterproofing: Seepage pan + clamp with seepage holes

Outlets: NH / NL / IP (plus select IC/IG); typical sizes 2", 3", 4"

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

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

Installation Highlights

1) Set & Anchor

Seat the drain body to rough elevation and anchor per detail; verify positive slopes toward the drain across the slab or paver bed.

2) Tie In Waterproofing

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

3) Adjust & Commission

Use the adjustable frame to set final height flush with finishes; install/secure the grate; schedule debris checks before heavy rain or freeze-thaw cycles.

Case Study: Parking Deck Overlay Alignment

A multi-level parking deck received a new traffic-bearing overlay. Standard drains sat low, creating puddles. The retrofit swapped in Zurn Z520 drains with 3" No-Hub outlets, -TS secured tops, and -Y sediment buckets near planter edges. The adjustable frame let crews dial in the final grate elevation after overlay placement—eliminating trip edges and reducing downstream jetting calls through the rainy season.

Frequently Asked Questions

What does “adjustable” mean on Z520?
The extension frame allows small height adjustments at finish, so you can match new overlays or paver elevations without re-setting the drain body.
Which outlet connection should I specify?
Match your system: No-Hub (NH) for cast-iron, Neo-Loc (NL) for compression, or Threaded (IP) for steel. Typical sizes are 2", 3", and 4"; confirm availability on the submittal.
Are architectural tops available?
Yes—use prefixes ZB (polished bronze) or ZN (polished nickel-bronze) for finished spaces; base prefix Z is cast iron.