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Zurn Z627 - Adjustable Heavy-Duty Isolation Deck Drain

Zurn Z627 - Adjustable Heavy-Duty Isolation Deck Drain

Zurn Z627 - Adjustable Heavy-Duty Isolation Deck Drain

$1,542.10


FREE SHIPPING
SKU Z627-2NH

The Zurn Z627 is an adjustable isolation deck drain, engineered for floating slab and isolation deck systems. It’s designed to accommodate structural movement, reduce sound transmission, and provide dependable drainage—all while preserving the integrity of deck membranes and finishes.

Key Features

  • Heavy-Duty, Dura-Coated Cast Iron Body
    Both upper and lower bodies are cast iron with a durable coating, offering strength and corrosion resistance.

  • Clamp Collar, Neoprene Flex Gasket & Isolation Nipple
    The clamp collar secures the membrane, the neoprene gasket allows flexibility, and the isolation nipple helps decouple slab motion from the drainage path.

  • Adjustable Grate with Heavy-Duty Design
    Includes a round 8-inch heavy-duty grate and an adjustable top to align flush with the finished surface.

Downloads:

Product Codes: Z627-2NH, Z627-3NH, Z627-4NH, Z627-6NH, Z627-2NL, Z627-3NL, Z627-4NL, Z627-2NL-C, Z627-3NL-C, Z627-4NL-C, ZN627-2NH, ZN627-3NH, ZN627-4NH, ZN627-6NH, ZN627-2NL, ZN627-3NL, ZN627-4NL, Z627-2NH-C, Z627-3NH-C, Z627-4NH-C, Z627-6NH-C, Z627-2NH-DG, Z627-3NH-DG, Z627-4NH-DG, Z627-6NH-DG, Z627-2NL-DG, Z627-3NL-DG, Z627-4NL-DG, Z627-2NH-G, Z627-3NH-G, Z627-4NH-G, Z627-6NH-G, Z627-2NL-G, Z627-3NL-G, Z627-4NL-G, Z627-2NH-R, Z627-3NH-R, Z627-4NH-R, Z627-6NH-R, Z627-2NL-R, Z627-3NL-R, Z627-4NL-R, Z627-2NH-TS, Z627-3NH-TS, Z627-4NH-TS, Z627-6NH-TS, Z627-2NL-TS, Z627-3NL-TS, Z627-4NL-TS, Z627-2NH-VP, Z627-3NH-VP, Z627-4NH-VP, Z627-6NH-VP, Z627-2NL-VP, Z627-3NL-VP, Z627-4NL-VP, Z627-2NH-Y, Z627-3NH-Y, Z627-4NH-Y, Z627-6NH-Y, Z627-2NL-Y, Z627-3NL-Y, Z627-4NL-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 Z627 – Adjustable Heavy-Duty Isolation Deck Drain

A purpose-built isolation deck drain for floating slab assemblies. The Z627 combines Dura-Coated cast-iron bodies, a clamp collar, neoprene flex gasket, and an isolation nipple with a heavy-duty round grate—providing durable drainage while helping protect membranes and finishes on isolation decks.

In technical terms, the Z627 is an adjustable isolation deck drain with upper and lower cast-iron bodies, a compressive sealing system, and a rugged top. In plain English: it’s a tough, height-adjustable drain that handles movement in floating slabs and keeps water moving without compromising your deck build-up.

Zurn Z627 isolation deck drain schematic showing adjustable cast-iron bodies, clamp collar, neoprene flex gasket, isolation nipple, and heavy-duty round grate
Z627 – Dimensional & Component Schematic

Key Features

  • Dura-Coated cast-iron upper & lower bodies with adjustable top for a flush finish on isolation decks.
  • Clamp collar and neoprene flex gasket for reliable compression sealing.
  • Isolation nipple between deck and structure to accommodate movement in floating slab assemblies.
  • Heavy-duty round grate engineered for high-traffic deck locations; approx. open area: 33 in².
  • Outlet families: NH No-Hub (2", 3", 4", 6") and NL Neo-Loc (2", 3", 4").

Where Z627 Excels

Specify Z627 for floating slab/isolation decks in multi-story residential, healthcare, and education projects where movement, waterproofing, and durability must coexist. The adjustable top simplifies finish alignment, while the isolation components help maintain membrane integrity over time.

Popular Options & Accessories

  • -C underdeck clamp; -R sump receiver (lower body).
  • -DG Duresist grate; -TS top-secured; -VP vandal-proof hardware.
  • -Y sediment bucket; -G galvanized cast iron finish.
Zurn brand logo
Zurn – Isolation Deck & Finish-Floor Drainage

Specifications at a Glance

Type: Adjustable heavy-duty isolation deck drain

Body: Dura-Coated cast iron, upper & lower

Seal: Clamp collar + neoprene flex gasket

Isolation: Isolation nipple for floating slab assemblies

Top: Heavy-duty round grate (approx. 33 in² open area)

Outlets: NH No-Hub 2"–6"; NL Neo-Loc 2"–4"

Body height “E”: NH ≈ 5-1/4"; NL ≈ 4-5/8"

Typical options: -C, -DG, -G, -R, -TS, -VP, -Y

Always verify dimensions, outlet family/size, and furnished options on the project submittal.

Installation Highlights

1) Rough-In & Support

Set the lower body at design elevation on the isolation deck, ensuring proper support and alignment with the waterproofing plan.

2) Seal & Isolate

Install the neoprene flex gasket and isolation nipple; secure the clamp collar to create a compression seal that tolerates movement.

3) Adjust & Finish

Use the adjustable top to match final surface height and slope; select top-secured or vandal-proof hardware where required.

Case Study: Floating Slab Terrace Corridor

A university renovated a floating slab terrace corridor over occupied space. The design team needed drains that could adjust to variable finish heights and tolerate deck movement. Selecting the Zurn Z627 with No-Hub outlets and top-secured hardware simplified elevation tuning and reduced callbacks. Maintenance reported easier cleanouts and durable performance through seasonal movement cycles.

Frequently Asked Questions

What is an “isolation deck” drain?
It’s a drain designed for floating slabs—decks that move independently of the structural slab. Components like the isolation nipple and flex gasket help the assembly accommodate movement while maintaining drainage and waterproofing continuity.
Which outlet should I choose: No-Hub or Neo-Loc?
No-Hub (NH) is common with cast-iron systems and offers pipe sizes from 2" to 6". Neo-Loc (NL) is a mechanical seal option typically in 2"–4" sizes. Match the outlet to your riser piping and local standards.
Are there accessories for heavy traffic or debris?
Yes—consider a Duresist (-DG) grate for demanding service, -Y for sediment capture, and -TS/-VP for securing the top in public areas.