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WK Model WTH-F

MTA Hatch Partially OpenFlush 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.

hatchbig lift off hatchMVC-029S

Product Details      

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

Technical Downloads

                   MTA hatch