The Legend ACD™ regulator series incorporates a proprietary over-balanced diaphragm first stage design coupled with a high performance balanced second stage. The over-balanced first stage achieves unprecedented performance by increasing your air supply the deeper you go. The balanced adjustable second stage reduces breathing resistance to near zero with a lightweight balanced valve seat designed to respond instantaneously to the slightest inhalation. The Legend ACD regulator series is the best performing regulator Aqua Lung has ever offered. Legendary performance from Aqua Lung: a tradition for 60 years.
The Legend ACD over-balanced diaphragm first stage combines the reliability of a completely sealed unit with the ease of breathing and quality construction common to all Aqua Lung Legend regulators. The Legend ACD second stage is a pneumatically balanced design that does not require diver adjustment. This is reliability and simplicity at its best! The Legend second stage is matched exclusively with the Legend ACD over-balanced diaphragm first stage.
Auto-Closure Device (ACD) seals the regulator’s inlet fitting, both Yoke and DIN, as soon as the regulator is removed from the cylinder valve.
The new ACD feature coupled with the environmental dry chamber, results in a first stage that is completely sealed off from the environment.
Over-balanced diaphragm design delivers superior breathing performance even at increased depths
Environmentally sealed dry chamber helps resist freezing and keeps the internal mechanism clean and dry
Inhalation adjustment feature permits diver to control breathing gas delivery under a variety of diving conditions
What is the ACD System? See it in action...