Vacuum elevators are certified to meet ASME elevator standards. They are simply designed with fewer parts to break down and in the event of a power failure while the elevator is in use, the slow release of air pressure caused by gravity is used to slowly descend to the lowest floor. Because upward movement of a vacuum elevator is created by the removal of air (creating a vacuum) above the car, a pocket of air is always below the car. If the elevator loses power, the air below the car remains a cushion that enables descent at a safe speed. Unlike a traditional hydraulic or traction elevators suspended by cables or ropes, there is no risk of a free-fall.
Back-up battery power ensures the mechanical brakes and locks remain operational.
PVEs offer multiple layers of safety protection for you and your family and guests.