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WK Model WTH-F

Flush Watertight Hatches – Any Size, Configuration, or Design Pressure

Whether lift-off or hinged, our flush watertight hatches can be designed for any application. Recessed flush into the ground surface, our watertight hatches can be operated from the top, bottom, or both sides via rotating dogs.  The top panel is fitted with recessed dogs while the bottom side of the hatch utilizes individual dogs, quick-acting handwheels, or an instantly opening panic-bar system.

Due to the weight of the hatch panel, most hatches require some type of assist while opening & closing. Options include coil springs, gas springs, and counterweights.

As with all our products, hatches are available in mild steel, stainless steel, and aluminum.

Product Details   

Design Pressure
Gasket Material
Panel & Frame Material
Type of Frame
Bottom sill
Operating Mechanism
Design Details
Built to your requirements – no practical size limit
Neoprene, Viton, EPDM, silicone, nitrile & others
Mild steel, stainless steel, aluminum, various high strength steels
Bolt-on, weld-on, masonry subframe
Operation from above via T-Wrench; operation from below via individual dogs, quick-acting handwheel, or panic bar system
Lifting lugs, mechanical assist (coil or gas springs, counterweights), power assist via hydraulic or pneumatic systems