These high containment APR doors create a dependable airtight barrier by using a strong but flexible seal that is compressed against the door frame. Manual compression of the seal doesn’t require compressed air, thus providing a fail-safe seal in the event of a power failure.
An easy to use stainless steel arm is used to compress the door against the seal. The mechanical mechanism is mounted in the door frame, this keeps the weight of the door down and provides easier service that when mounted in the door leaf. The door has a raised threshold for the seal at the bottom of the door.
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