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Zurn Z551 - 9" Diameter Medium-Duty Drain

Zurn Z551 - 9" Diameter Medium-Duty Drain

Zurn Z551 - 9" Diameter Medium-Duty Drain

$383.60


FREE SHIPPING
SKU Z551-2NH

The Zurn Z551 is a 9-inch diameter medium-duty area drain designed for applications where both performance and durability are required, but traffic loads are moderate. It features a cast iron body, integrated accessories, and options for top finishes to coordinate with architectural floors.

Key Features

  • Dura-Coated Cast Iron Body with Bottom Outlet
    The body is protected with a durable coating to resist corrosion, and routing is supported via a bottom outlet configuration.

  • Combination Membrane Flashing Clamp & Frame + Seepage Pan
    Provides secure sealing to the floor membrane while managing peripheral runoff through the seepage pan design.

  • Medium-Duty Slotted Grate with Multiple Top Options
    The slotted grate supports moderate loading and is available in cast iron, polished bronze, or polished nickel bronze finishes to match surrounding flooring.

Downloads:

Product Codes: Z551-2NH, Z551-3NH, Z551-4NH, Z551-2NL, Z551-3NL, Z551-4NL, Z551-2IP, Z551-3IP, Z551-4IP, ZN551-2NH, ZN551-3NH, ZN551-4NH, ZN551-2NL, ZN551-3NL, ZN551-4NL, ZN551-2IP, ZN551-3IP, ZN551-4IP, Z551-2NH-D, Z551-3NH-D, Z551-4NH-D, Z551-2NL-D, Z551-3NL-D, Z551-4NL-D, Z551-2IP-D, Z551-3IP-D, Z551-4IP-D, Z551-2NH-DG, Z551-3NH-DG, Z551-4NH-DG, Z551-2NL-DG, Z551-3NL-DG, Z551-4NL-DG, Z551-2IP-DG, Z551-3IP-DG, Z551-4IP-DG, Z551-2NH-G, Z551-3NH-G, Z551-4NH-G, Z551-2NL-G, Z551-3NL-G, Z551-4NL-G, Z551-2IP-G, Z551-3IP-G, Z551-4IP-G, Z551-2NH-P, Z551-3NH-P, Z551-4NH-P, Z551-2NL-P, Z551-3NL-P, Z551-4NL-P, Z551-2IP-P, Z551-3IP-P, Z551-4IP-P, Z551-2NH-SS, Z551-3NH-SS, Z551-4NH-SS, Z551-2NL-SS, Z551-3NL-SS, Z551-4NL-SS, Z551-2IP-SS, Z551-3IP-SS, Z551-4IP-SS, Z551-2NH-TG, Z551-3NH-TG, Z551-4NH-TG, Z551-2NL-TG, Z551-3NL-TG, Z551-4NL-TG, Z551-2IP-TG, Z551-3IP-TG, Z551-4IP-TG, Z551-2NH-TS, Z551-3NH-TS, Z551-4NH-TS, Z551-2NL-TS, Z551-3NL-TS, Z551-4NL-TS, Z551-2IP-TS, Z551-3IP-TS, Z551-4IP-TS, Z551-2NH-VP, Z551-3NH-VP, Z551-4NH-VP, Z551-2NL-VP, Z551-3NL-VP, Z551-4NL-VP, Z551-2IP-VP, Z551-3IP-VP, Z551-4IP-VP, Z551-2NH-Y, Z551-3NH-Y, Z551-4NH-Y, Z551-2NL-Y, Z551-3NL-Y, Z551-4NL-Y, Z551-2IP-Y, Z551-3IP-Y, Z551-4IP-Y

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 Z551 – 9" Diameter Medium-Duty Drain

A 9" round, medium-duty area drain with a Dura-Coated cast-iron body, bottom outlet, seepage pan, and combination membrane flashing clamp & frame—topped by a heel-proof slotted grate. Designed for plazas, decks, garage levels, and busy walkways.

In technical terms, the Zurn Z551 is a 9" diameter top drain featuring a Dura-Coated cast-iron body with bottom outlet, seepage pan, and a clamp/frame assembly (with an integrated trap-primer port and plug). In plain English: it ties cleanly into waterproofing, handles moderate traffic loads, and stays easy to service thanks to its accessible top assembly.

Zurn Z551 9-inch medium-duty drain schematic with clamp/frame and seepage pan
Zurn Z551 – Dimensional & Component Schematic

Key Features

  • 9" round top with heel-proof slotted grate for dependable inflow at point drains.
  • Dura-Coated cast-iron body with bottom outlet for long service life.
  • Seepage pan + combination flashing clamp & frame simplify membrane tie-in and rework.
  • Trap-primer port & plug integrated in the clamp/frame assembly for code-driven primer connections.
  • Outlet types: NH (No-Hub), NL (Neo-Loc), IP (Threaded), and select IC/IG options—commonly in 2", 3", 4" sizes.
  • Top finishes by prefix: Z (cast iron), ZB (polished bronze), ZN (polished nickel-bronze).

Where Z551 Excels

Specify Z551 for plazas, parking decks, ramps, and light-industrial floors where drains must balance durability with architectural finishes. The clamp/frame assembly helps coordinate with toppings or pavers, and the round grate resists rocking under foot and cart traffic.

Popular Options (Snapshot)

  • -DG Duresist grate; -TS top secured; -VP vandal-proof hardware.
  • -Y sediment bucket (stainless mesh liner -SS available); -P trap-primer connection.
  • -90 90° side-outlet body variant (for tight drops/coordination).
Zurn brand logo
Zurn – Engineered Drainage for Demanding Sites
Zurn Z551 components: grate, clamp/frame, seepage pan, body
Zurn Z551 – Components & Assembly Overview

Specifications at a Glance

Top: 9" round, medium-duty heel-proof slotted grate

Body: Dura-Coated cast iron; bottom outlet

Waterproofing: Seepage pan + combination flashing clamp & frame

Primer: Integrated trap-primer port & plug (clamp/frame)

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

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

Always confirm final dimensions, loading, and options on the project submittal.

Installation Highlights

1) Set & Elevate

Place the body to rough elevation; ensure positive slope toward the drain across slab or pavers.

2) Tie Into Waterproofing

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

3) Commission & Maintain

Install/secure the grate; if specified, add a -Y bucket; schedule debris checks before heavy rain or freeze-thaw cycles.

Case Study: Campus Walkway Upgrade

A university plaza experienced puddling at joint lines and cross-slopes. The retrofit standardized on Zurn Z551 drains with 3" No-Hub outlets and -TS secured tops. After one rainy season, facilities reported faster drawdown and fewer slip-hazard calls; adding -Y sediment buckets at leaf-heavy entries cut downstream jetting by half.

Frequently Asked Questions

Which outlet connection should I specify?
Match to your piping and detailing: No-Hub (NH) for cast-iron systems, Neo-Loc (NL) for compression fit, or Threaded (IP) for steel. Select sizes are commonly available in 2", 3", and 4".
Is a sediment bucket included?
Z551 can be furnished with an optional -Y sediment bucket (stainless mesh liner -SS available). Add it where grit/leaves are common to extend time between line cleanings.
Are bronze or nickel-bronze tops available?
Yes—use prefixes ZB (polished bronze) or ZN (polished nickel-bronze) for finished areas; base model Z is cast iron.