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Zurn Z629 - Vertical Wall Drain with Backwater Valve

Zurn Z629 - Vertical Wall Drain with Backwater Valve

Zurn Z629 - Vertical Wall Drain with Backwater Valve

$3,132.75


FREE SHIPPING
SKU Z629-3NH

The Zurn Z629 is a rugged area drain designed for performance in demanding environments. Built to manage substantial surface water loads while maintaining structural integrity, it’s well suited for plazas, paved decks, industrial flooring, and other high-traffic or high-flow sites.

Key Features

  • Heavy-Duty Construction
    Built with robust materials engineered to resist corrosion, weathering, and mechanical stress over long service life.

  • Traffic-Rated Grate
    Equipped with a grate capable of supporting pedestrian and light vehicle loads while maximizing drainage efficiency.

  • Flexible Outlet & Sealing Design
    Offers multiple outlet options and includes interfaces for integration with waterproofing membranes, paving systems, or drainage networks, supporting leak-resistant installation.

Downloads:

Product Codes: Z629-3NH, Z629-4NH, Z629-6NH, Z629-3NL, Z629-4NL, Z629-6NL, Z629-3IP, Z629-4IP, Z629-6IP, Z629-3IC, Z629-4IC, Z629-6IC, Z629-3IG, Z629-4IG, Z629-6IG, ZB629-3NH, ZB629-4NH, ZB629-6NH, ZB629-3NL, ZB629-4NL, ZB629-6NL, ZB629-3IP, ZB629-4IP, ZB629-6IP, ZB629-3IC, ZB629-4IC, ZB629-6IC, ZB629-3IG, ZB629-4IG, ZB629-6IG, ZN629-3NH, ZN629-4NH, ZN629-6NH, ZN629-3NL, ZN629-4NL, ZN629-6NL, ZN629-3IP, ZN629-4IP, ZN629-6IP, ZN629-3IC, ZN629-4IC, ZN629-6IC, ZN629-3IG, ZN629-4IG, ZN629-6IG,

Frequently Asked Questions

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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 Z629 – Vertical Wall Drain with Backwater Valve

A rugged vertical wall drain that integrates a backwater valve to help prevent reverse flow—built around a Dura-Coated cast-iron body with a secured slotted grate for reliable performance at wall low points and scuppers.

The Zurn Z629 is purpose-designed for wall-mounted drainage at plaza edges, garage parapets, and grade transitions. In technical terms, it features a Dura-Coated cast-iron body with an integral bronze backwater valve and a secured slotted grate. In plain English: it captures sheet flow at the wall, helps stop backups during surges, and stands up to weather and traffic-adjacent abuse.

Zurn Z629 vertical wall drain with backwater valve - schematic
Zurn Z629 – Dimensional & Component Schematic

Key Features

  • Backwater valve (bronze assembly) helps prevent reverse flow into the space during surcharge events.
  • Dura-Coated cast-iron body for long service life in exposed conditions.
  • Secured slotted grate resists tampering and provides dependable inflow at wall low points.
  • Pipe sizes: 3", 4", 6" (verify per submittal and SKU).
  • Connection: commonly No-Hub (NH) vertical wall outlet; check submittal for model-specific variants.

Top materials available by prefix (cast iron standard; polished bronze or polished nickel bronze options).

Where Z629 Excels

Use the Z629 at plaza edges, parapet scuppers, stair areaways, parking deck walls, and retaining walls where water sheets toward a vertical surface. The built-in backwater valve is a smart safeguard when systems are tied to storm lines prone to occasional surcharge.

Sizing & Options (Snapshot)

  • Approx. housing size (typical): ~12-3/4" L × 13" W × 11" H (check submittal for exact).
  • Prefixes: Z (cast-iron top), ZB (polished bronze top), ZN (polished nickel-bronze top).
  • Common suffixes: -C clamping collar, -G galvanized, -VP vandal-proof secured top, -LV less backwater valve.
Zurn brand logo
Zurn – Engineered Drainage for Demanding Sites

Specifications at a Glance

Type: Vertical wall drain with integral backwater valve

Body: Dura-Coated cast iron

Grate: Secured slotted top (material by prefix)

Outlet: Vertical wall / No-Hub (3", 4", 6")

Use: Plaza edges, parapets, decks, areaways, retaining walls

Options: Clamp collar, galvanized finish, vandal-proof hardware, top finish upgrades

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

Installation Highlights

1) Locate & Sleeve

Core or form the wall opening at the low-point/scupper; provide sleeves/backing as required and verify pitch toward the drain.

2) Tie-In Waterproofing

Use the clamping collar (if specified) and sealants compatible with the wall membrane; maintain a clean bearing surface around the frame.

3) Commission & Service

Verify backwater valve operation, secure the grate, and schedule routine visual checks—especially ahead of heavy rain seasons.

Case Study: Plaza Parapet Scupper Upgrade

A civic plaza experienced water blow-back through wall scuppers during extreme storms, wetting interior service corridors. The retrofit standardized on Zurn Z629 units with 4" No-Hub outlets and vandal-proof secured grates. The integral backwater valve stopped reverse flow during surcharges, while secured tops improved safety. After one rainy season, facilities staff reported zero blow-back incidents and faster stormwater removal along the parapet line.

Frequently Asked Questions

What does the backwater valve do?
It helps prevent reverse flow through the drain during surcharges, protecting adjacent spaces from water intrusion and debris.
Which outlet size should I choose?
Z629 is commonly furnished in 3", 4", or 6" No-Hub outlets. Match to your storm riser size and hydraulic calcs; always verify on the submittal for your exact SKU.
Can I upgrade the grate finish?
Yes. Prefix options allow cast-iron (standard), polished bronze, or polished nickel-bronze tops. Vandal-proof hardware is also available for public locations.