blocks_image
First Stages - DST
US$221 / RO85 - AP0230-1
blocks_image
DST
The DST first stage is one of the world's top 1st stages with proven performance and reliability and is one of Apeks most popular regulators. DST stands for Dry Sealed System with swivel turret.

The first stage is of pressure adjustable depth compensated diaphragm design and supplies air at exactly the right pressure. As the diver descends the demand for gas increases and to maintain the supply, the intermediate pressure increases relative to the water depth. In the Dry-Sealed System hydrostatic pressure, acting on the outer sealing diaphragm, is transmitted to the primary diaphragm via the load transmitter.

These first stages utilize a unique over-tracking (over-balanced) diaphragm design, where the intermediate pressure supplied to the second stage increases more than traditional balanced models, as the diver descends to greater depths. This increased intermediate pressure compensates for the increased density of your breathing gas by allowing a larger volume of gas to flow through the system on demand. The result is superior breathing performance regardless of depth.

The first stage is of pressure adjustable depth compensated diaphragm design and supplies air at exactly the right pressure.

All our first stages are available in both DIN and A clamp versions.

Dry Sealed System with swivel turret (DST)
4 MP ports, 1 x 1/2 UNF + 3 x 3/8 UNF
2 HP ports 7/16 UNF