ew1usnr
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In 1972 Dacor had an anti-free flow system built into their Olympic 400 and 800 second stage regulators (see attached advertisement). It was an ingenious concept. Have any other regulators ever had a similar system?
Did Dacor carry this system forward into any of their later model regulators?
A free flow creates a vacuum in the 2nd stage that pulls in the diaphragm, which causes the freeflow to continue. Dacor directed the flow of air to one side of the mouthpiece tube with a metal directional vane. When a free flow occurred, air would blast out on one side of this vane, while the vacuum in the 2nd stage drew in water on the other side of the vane. The water would flood the 2nd stage case, break the vacuum, and halt a free flow within three seconds. I know that some one will say "Just put your finger on the outlet to stop the free flow". But, this was a simple, effective, and AUTOMATIC solution to regulator free flow. Dacor said "If your regulator is not an Olympic, then it is obsolete".
Did Dacor carry this system forward into any of their later model regulators?
A free flow creates a vacuum in the 2nd stage that pulls in the diaphragm, which causes the freeflow to continue. Dacor directed the flow of air to one side of the mouthpiece tube with a metal directional vane. When a free flow occurred, air would blast out on one side of this vane, while the vacuum in the 2nd stage drew in water on the other side of the vane. The water would flood the 2nd stage case, break the vacuum, and halt a free flow within three seconds. I know that some one will say "Just put your finger on the outlet to stop the free flow". But, this was a simple, effective, and AUTOMATIC solution to regulator free flow. Dacor said "If your regulator is not an Olympic, then it is obsolete".