Williams Brothers Corporation of America Defining Quality One Access Door at a Time

Toll Free: 800-255-5515

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Toll Free: 800-255-5515

WB Type J & JD Drainage Floor Hatch

This rugged drainage floor hatch is available with either single or double leaf covers that are constructed of 1/4" (6.35mm) diamond pattern plate and reinforced for a 300 lb/ft2(1464 kg/m2) live load. door features reinforced composite spring tubes, heavy forged brass hinges, and zinc plated/chromate sealed hardware.

Construction Specifications:

Material: Cover and frame are 1/4" steel
Cover: Diamond-pattern tread plate reinforced for 300 psf (1464 kg/m2) live load
Frame: Formed channel frame with full anchor angle welded around the perimeter. A 1-1/2" drain coupling is welded under the frame for a pipe connection to a dry well or disposal system.
Finish: Alkyd base red oxide primer
Latch: Type 316 stainless steel slam lock with fixed interior handle and removable exterior turn/lift handle. Latch release is protected by a flush, gasketed, removable screw plug
Hinges: Heavy forged brass hinges with 3/8" Type 316 stainless steel hinge pins
Lift Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold open arm with grip handle release.
Hardware: Engineered composite compression spring tubes. Steel compression springs with electrocoated acrylic finish. Slam lock and all fasteners are Type 316 stainless steel. All other hardware is zinc plated/chromate sealed.

• Special Sizes - available on request

Click on CAD File icon below to access CAD drawings plus 3D and BIM models. (Note: Requires one-time registration at www.caddetails.com)

Item # Size W x H Shipping Wt. Lbs. CAD Files - J CAD Files - JD
J-1 Steel 24 x 24 50
J-2 Steel 30 x 30 65
J-3 Steel 36 x 30 77
J-4 Steel 36 x 36 86
J-5 Steel 42 x 42 109
JD available upon request (double leaf)

Williams Brothers Corporation
Corporate Office
1330 Progress Drive
Front Royal, Virginia 22630

Western Distribution Center
Reno Nevada 

Toll Free Phone 800 255-5515
Phone 540 636-4444
Toll Free Fax 800 822-5001
Fax 540 636-4455

Toll Free Phone 800 255-5515
Phone 540 636-4444
Toll Free Fax 800 822-5001
Fax 540 636-4455