Description
Overview
The Lockwood ES9000 has been designed to suit the harshest commercial environments, and has the unique ability to operate with up to 25Kg of pre-load pressure on the keeper. Pre-load is a common condition that is caused by pulling on the door before it unlocks, the weight of warped or drooping doors, seals on fire doors, or by differential air pressure created when heating and cooling systems are in use.
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