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Zurn Z531 - Adjustable Frame Wide Flange Deck Drain

$2,333.97


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SKU Z531-2NH

The Zurn Z531 is a 9-inch adjustable frame wide-flange deck drain, designed for use in latex deck systems and exterior finish decks. With a cast iron body, adjustable flange, and medium-duty grate, it offers both functional drainage and visual compatibility with architectural finishes.

Key Features

  • Adjustable Flange & Clamp Mechanism: Equipped with a latex troweling flange and a membrane flashing clamp that can be adjusted on site to match deck depths and waterproofing layers.

  • Heavy-Duty Construction: Built from Dura-coated cast iron, available with tops in cast iron, polished bronze, or polished nickel bronze for aesthetic versatility.

  • Wide Flange & Medium-Duty Grate: The wide flange supports integration with tile or membrane surfaces, and the medium-duty grate balances flow capacity with load performance for pedestrian or light traffic areas.

Downloads:

Product Codes: Z531-2NH, Z531-3NH, Z531-4NH, Z531-2NL, Z531-3NL, Z531-4NL, Z531-2IC, Z531-3IC, Z531-4IC, Z531-2IG, Z531-3IG, Z531-4IG, Z531-2IP, Z531-3IP, Z531-4IP, ZB531-2NH, ZB531-3NH, ZB531-4NH, ZB531-2NL, ZB531-3NL, ZB531-4NL, ZB531-2IC, ZB531-3IC, ZB531-4IC, ZB531-2IG, ZB531-3IG, ZB531-4IG, ZB531-2IP, ZB531-3IP, ZB531-4IP, ZN531-2NH, ZN531-3NH, ZN531-4NH, ZN531-2NL, ZN531-3NL, ZN531-4NL, ZN531-2IC, ZN531-3IC, ZN531-4IC, ZN531-2IG, ZN531-3IG, ZN531-4IG, ZN531-2IP, ZN531-3IP, ZN531-4IP,

Frequently Asked Questions

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 Z531 – Adjustable Frame Wide Flange Deck Drain

A finish/deck drain featuring a wide flange for easier waterproofing tie-in and an adjustable frame/top that dials in final height. Designed for terraces, podiums, breezeways, and other exposed decks where durability, alignment, and serviceability matter.

In technical terms, the Z531 pairs a wide-flange body and clamp interface (with seepage paths) to integrate membranes/coatings, while an adjustable frame sets the strainer flush to finished surfaces. In plain English: it’s a tough deck drain that makes waterproofing simpler and keeps your finish clean and level.

Zurn Z531 Adjustable Frame Wide Flange Deck Drain schematic showing wide flange, clamp interface, adjustable frame and strainer
Z531 – Dimensional & Component Schematic

Key Features

  • Wide flange body provides generous surface for membrane or coating tie-in with cleaner edges.
  • Adjustable frame/top fine-tunes elevation to keep the strainer flush to tile, pavers, or resinous floors.
  • Clamp interface with seepage paths manages incidental moisture under finishes.
  • Deck-rated strainer (heel-safe, serviceable) for routine cleanouts and long life.
  • Outlet families: compatible with common No-Hub and Neo-Loc connections (sizes per submittal).
  • Security options: top-secured and vandal-resistant hardware for public access areas.

Where Z531 Excels

Specify Z531 for podiums and terraces, breezeways, exterior corridors, and wet public zones where waterproofing must be reliable and the finished surface must look neat. The wide flange reduces risk of membrane pull-back; the adjustable frame makes punch-list alignment quick.

Benefits at a Glance (Plain English)

  • Easier waterproofing for installers thanks to the larger bonding area.
  • Cleaner visuals—frame adjusts to the finish so the top sits perfectly flush.
  • Lower maintenance with a heel-safe, serviceable strainer that speeds debris removal.
Zurn brand logo
Zurn – Deck & Finish Floor Drainage

Specifications at a Glance

Type: Adjustable-frame, wide-flange deck drain

Body: Heavy-duty cast construction (Dura-Coated cast-iron family)

Top: Adjustable frame/top for finished-floor alignment

Waterproofing: Clamp interface with seepage paths

Strainer: Heel-safe, serviceable (deck-rated)

Outlets: No-Hub / Neo-Loc (verify sizes on submittal)

Always confirm dimensions, outlet type/size, strainer style, and furnished options on the project submittal.


Installation Highlights

1) Set & Support

Place the body at rough height; ensure the wide flange is clean, level, and ready for membrane/coating tie-in.

2) Membrane Tie-In

Integrate the waterproofing at the clamp interface; seepage paths help manage incidental moisture beneath the finish.

3) Final Adjust

Use the adjustable frame to set the top flush with tile/pavers; secure the heel-safe strainer and water-test.

Case Study: Podium Terrace Over Retail

A mixed-use project needed reliable drains for a podium terrace with resinous coating. The team chose Zurn Z531 to leverage the wide flange for a confident membrane tie-in and the adjustable frame for quick final leveling. After turnover, facilities noted fewer edge defects at drains and faster maintenance thanks to the serviceable, heel-safe top.

Frequently Asked Questions

Why a “wide flange” on deck drains?
The wide flange increases bonding area for membranes or coatings, creating a cleaner, more forgiving transition at the drain edge and reducing callbacks.
Is the frame adjustable after flooring?
Yes. The adjustable frame/top allows fine tuning to keep the strainer flush with tile, pavers, or resinous systems—verify range on the submittal.
Which outlet connection should I select?
Match your riser piping and standards. No-Hub suits cast-iron couplings; Neo-Loc provides a mechanical seal. Confirm available sizes on the Z531 submittal.