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Zurn Z662-HF - HF 16" Square top Heavy-Duty Drain with High Flow Ductile Iron Grate

Zurn Z662-HF - HF 16" Square top Heavy-Duty Drain with High Flow Ductile Iron Grate

Zurn Z662-HF - HF 16" Square top Heavy-Duty Drain with High Flow Ductile Iron Grate

$3,631.60


FREE SHIPPING
SKU Z662-HF-3NH

The Zurn Z662-HF is a high-flow variant of the Z662 area drain, engineered to handle elevated water volumes and demanding surface conditions. With robust construction and enhanced design features, it is ideal for plazas, industrial floors, paved decks, or any application where standard drains fall short.

Key Features

  • Reinforced Construction: Built with thicker walls, stronger materials, or enhanced coatings to resist corrosion, mechanical stress, and long exposure in harsh environments.

  • High-Capacity Grate & Flow Design: Equipped with a heavy-duty grate capable of handling larger water flows while supporting load demands.

  • Integration & Outlet Versatility: Offers interface compatibility with waterproofing membranes, paving systems, and multiple outlet configurations for flexible design and reliable sealing.

Downloads:

Product Codes: Z662-3IC, Z662-4IC, Z662-6IC, Z662-3IG, Z662-4IG, Z662-6IG, Z662-3IP, Z662-4IP, Z662-6IP, Z662-3NH, Z662-4NH, Z662-6NH, Z662-3NL, Z662-4NL, ZB662-3IC, ZB662-4IC, ZB662-6IC, ZB662-3IG, ZB662-4IG, ZB662-6IG, ZB662-3IP, ZB662-4IP, ZB662-6IP, ZB662-3NH, ZB662-4NH, ZB662-6NH, ZB662-3NL, ZB662-4NL, ZN662-3IC, ZN662-4IC, ZN662-6IC, ZN662-3IG, ZN662-4IG, ZN662-6IG, ZN662-3IP, ZN662-4IP, ZN662-6IP, ZN662-3NH, ZN662-4NH, ZN662-6NH, ZN662-3NL, ZN662-4NL,

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 Z662-HF – 16" Square Top Heavy-Duty Drain with High Flow Ductile Iron Grate

A rugged 16" square area drain combining a Dura-Coated cast-iron body, high-flow ductile iron grate, and suspended sediment bucket—purpose-built for high runoff and traffic-rated service.

The Zurn Z662-HF is engineered for exposed decks, ramps, plazas, and industrial floors that demand high inflow and durability. In technical terms, it features a Dura-Coated cast-iron body with bottom outlet, a high-flow ductile iron grate, and a furnished suspended sediment bucket; in plain English, it pulls water in fast, stands up to vehicles, and makes clean-outs straightforward.

Zurn Z662-HF 16-inch square heavy-duty drain schematic
Zurn Z662-HF – Dimensional & Component Schematic

Key Features

  • 16" square, high-flow ductile iron grate optimized for rapid surface capture in heavy rains.
  • Dura-Coated cast-iron body with bottom outlet for longevity and simple tie-in.
  • Suspended sediment bucket (furnished) helps trap debris and reduce downstream clogging.
  • Waterproofing-friendly frame with clamp and seepage detailing available per spec, easing membrane tie-in.
  • Heavy-duty service suitable for traffic-rated applications on decks and ramps.

Where Z662-HF Excels

Choose Z662-HF for parking decks, precast garage levels, ramp low points, plazas, and industrial bays. The high-flow grate swallows sheet flow efficiently, while the sediment bucket simplifies maintenance schedules.

Sizing & Options (Snapshot)

  • Pipe sizes: 3", 4", 6"
  • Outlet types: No-Hub (NH), Threaded (IP), Neo-Loc (NL), Inside Caulk (IC), Inside Gasket (IG)
  • Top finishes: Cast iron standard; bronze or nickel-bronze top options by prefix
Zurn brand logo
Zurn – Engineered Drainage for Demanding Environments

Specifications at a Glance

Top: 16" square (high-flow ductile iron grate)

Body: Dura-Coated cast iron

Outlet: Bottom outlet; 3"/4"/6" sizes (per submittal)

Furnished: Suspended sediment bucket

Waterproofing: Clamp/frame & seepage detailing available

Use: Heavy-duty/traffic-rated deck and plaza drainage

Installation Highlights

1) Set & Secure

Position body to finish elevation; anchor per detail; verify positive slopes toward the drain.

2) Waterproofing Interface

Tie the clamp/frame and seepage detailing into the deck membrane per submittal; protect assembly during pours/overlays.

3) Commission & Maintain

Install high-flow grate; confirm securement; set seasonal clean-outs for the sediment bucket before heavy rain/freeze-thaw cycles.

Case Study: Plaza & Ramp Low-Point Upgrade

A mixed-use garage struggled with ponding at ramp transitions. Engineers replaced undersized drains with Zurn Z662-HF units (4" No-Hub outlets). The high-flow grate improved capture during cloudbursts, while the furnished sediment bucket reduced downstream maintenance. After one rainy season, logs showed faster runoff removal and fewer freeze-thaw edge failures.

Frequently Asked Questions

What makes the Z662-HF “high-flow”?
It ships with a ductile iron grate specifically designed to increase free area and inflow compared to standard heavy-duty square tops—ideal for intense storm events on decks and plazas.
Which outlet connection should I choose?
Options typically include No-Hub, Threaded, Neo-Loc, Inside Caulk, and Inside Gasket in 3", 4", or 6" sizes. Match the outlet to your piping system and detailing preferences specified on the project submittal.
Is a sediment bucket included?
Yes—the Z662-HF is furnished with a suspended sediment bucket to capture debris and simplify maintenance.