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Experience effortless breathing in the most demanding marine environments with the Apeks ATX Dive Regulator Set featuring the famous DST first stage. Built on Apeks' world-renowned engineering heritage, this high-performance cold-water regulator pairs an over-balanced diaphragm first stage with a pneumatically balanced second stage to deliver exceptionally smooth, consistent airflow at any depth and cylinder pressure.
Over-Balanced Diaphragm & Environmental Dry Seal System
Features an innovative over-balanced DST first-stage diaphragm that increases medium-pressure gas delivery faster than ambient depth increases, resulting in superior breathing performance during deep ascents or heavy exertion. Fully sealed against water and silt to prevent internal freezing and icing in cold-water conditions.
Features and Benefits
- DST Over-Balanced First Stage: Delivers increased inter-stage air pressure as depth increases, compensating for gas density for effortless breathing at technical depths.
- Rotating Swivel Turret: Low-pressure ports are housed on a swivel turret, ensuring optimal hose routing for both single-tank and technical stage setups.
- Environmentally Sealed Dry System: Keeps internal mechanics completely isolated from water, mud, and contaminants, eliminating freeze risk in icy water.
- Pneumatically Balanced Second Stage: Reduces cracking resistance and inhalation effort across varying tank pressures.
- Adjustable Venturi Control: Large, glove-friendly Venturi lever allows easy pre-dive / dive switching to prevent unwanted surface free-flows.
- Integrated Cold-Water Heat Exchanger: Surrounds the second-stage valve assembly to draw ambient heat from seawater and combat internal refrigeration.
- Comfo-Bite™ Mouthpiece: Patented ergonomic mouthpiece features an upper-jaw bridge to relieve jaw strain during long, demanding dives.
Technical Specifications
| Brand | Apeks |
|---|---|
| First Stage Model | DST First Stage (Over-Balanced Diaphragm) |
| Port Configuration | 4 Low-Pressure (LP 3/8" UNF) Ports on Swivel Turret & 1 High-Pressure (HP 7/16" UNF) Port |
| Environmental Sealing | Environmental Dry Seal System (Cold Water Rated) |
| Second Stage Type | Pneumatically Balanced Downstream Valve |
| Controls | Adjustable Venturi Control Lever |
| Cold Water Rating | Yes (EN250A Certified for Cold-Water Diving) |
| Nitrox Compatibility | Compatible up to 40% O2 out-of-the-box |
| Connection Options | DIN (300 bar) or Yoke (INT 232 bar) |
| Best For | Cold-Water Diving, Deep Technical Stage Setups, & Streamlined Hose Routing |
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