Custom Industrial Flood Gates & Doors

Heavy engineered industrial-level flood protection. Flood gates, doors, & hatches that fit any application.
Tunnel-Photo.png
Tunnel-Opening.jpeg

Expert Floodproofing Engineering Solutions Since 1939

Walz & Krezner

From the simplest flood barrier to the most complex high pressure closure, our engineers design your product based on your requirements. Whether you need complex FEA analysis, blast calculations, or 3-D modeling, you can count on a fully engineered, tested product that fully meets complex specifications.

8 flood gates protecting NYC Queens Midtown & High L. Carey Tunnels from flooding.

Hinged, Sliding, or Removable Flood Gates

Whether requirements call for permanent, removable, or automatically deploying flood barriers, these custom designed closures provide reliable protection. All closures can be designed to meet FEMA, FM/ANSI 2510, USACE requirements. Our customers vary from museums (NYC Whitney Museum), government projects (MTA in NYC), NASA (Houston) to Nuclear Plants (Calvert Cliffs).

IMG_012787fcce19e4e3fc74d6f37c4391661dfde12089918b3a8d5057d89f5581be5db0.JPEG
SIDE-HINGED

Permanent & Ready

Lipseal, Inflatable or
Compression Gasket

Union-20120920-00739.jpg
SLIDING

Permanent & Compact

Horizontal
Vertical

20140407_113823.jpeg
REMOVABLE

Can Be Stored

Lipseal, Inflatable or
Compression Gasket

KEY FEATURES

Custom_300x.png
Click.png
Tested_300x.png
Steel_300x.png
Color_300x.png
CUSTOMIZABLE

Engineered to Fit Any Size & Application

USER CONTROL

Manual, Full Automation, or Powered

OPERATION

Projects for the US ARMY Corps of Engineers, US Navy, & State Transit Department

Whether your project requires complex FEA analysis, blast calculations, or 3-D modeling, you can count on a fully engineered and tested product that exceeds your specifications and any regulatory requirements.

Meets FEMA/FM/USACE Requirements

MATERIAL OPTIONS

Aluminum, Mild A36 Steel or 304 & 316 Stainless Steel

FINISH OPTIONS
P1090541-683x1024.jpeg
P1090713.jpeg

Various Paints, No. 4 Polish, or Mill Finish

South Ferry Terminal, NYC Inflatable Gasket Door

OTHER APPLICATIONS

Watertight Doors

Custom watertight doors can be supplied with power operation and most can be specially designed for blast, ballistic, shock, vibration, seismic, chemical, tornado, and high pressure requirements. Single & double panel doors are available.

DSCF0007.JPG
COMPRESSION GASKET

Raised, High Pressure

Quick Acting or
Individually Dogged

good-inflat-door.jpeg
INFLATABLE GASKET

Flush, High Pressure

Button-activated Inflation

large-sliding-door.jpeg
SLIDING

Space Saving

Horizontal or
Vertical

DSC05824.jpeg
OVERHEAD

Roller Curtain

Button-activated
or Automatic

hatch.jpg

Individually-Dogged Flush hatch

MicrosoftTeams-image (8).png

Manual Drop-Bolt hatch

20160211_093531.jpg

NYC Emergency Egress Hatch

Watertight Hatches

Custom hatches can fit any size and pressure requirement. Additional load factors such as wheel loads and point loads from material handling equipment can also be incorporated. Flush and raised configurations are available and are operable from one or both sides. Hatches are sealed utilizing individual dogs, quick-acting handwheels, or drop bolts. Larger hatches may require mechanical opening assistance like gas springs, coil springs, and counter-weights, although power operation is also an option.

Hatch-4339-Test.jpeg
RAISED

Visable

Manual,
Counterweighted, or 
Powered

20160211_093541-e1456947585261-768x1024.jpeg
FLUSH

Discreet

Manual,
Counterweighted, or
Powered

GALLERY

IMG_3010