Definition of Access hatch
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Access hatch Definition from Science & Technology Dictionaries & Glossaries
NRC Nuclear Energy Glossary
An airtight door system that preserves the pressure integrity of a reactor containment structure while allowing access to personnel and equipment.A service to the public by The U.S. Nuclear Regulatory Commission (NRC).
Access hatch Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
A trapdoor is a sliding or hinged door, flush with the surface of a floor, roof, or ceiling, or in the stage of a theatre. A hatch, an opening which may also be in a wall and need not be flush with the surface, is similar; in some cases either name is applicable. A small door in a wall, floor or ceiling used to gain access to equipment is called an access hatch or access door.
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