The XL4 also makes an ideal stage regulator, perfect for the technical exploration diver with a large amount of equipment. The XL4 is a high performance option for those technical divers serious about weight savings.
Features:
1ste stage
- Compact machined first stage based on the expedition tested Apeks DS4 platform.
- Break through, innovative over-moulded first-stage endcap and environmental diaphragm helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
- Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
- Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth.
- With 2 HP ports and 4MP ports.
2nd Stage
- Compact and lightweight second stage improves comfort and helps reduce jaw fatigue on long duration dives.
- High performance pneumatically balanced lever operated poppet valve.
- Large, over moulded self-flushing and controllable purge button.
- Ergonomic Venturi lever is easy to use and locate.
- Flexible nylon braided hose has better cold water performance than a traditional rubber hose.
- Standard metallic hose connection for interchangeability.
- Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place.
- Re-useable mouthpiece clip makes it simple to change mouthpieces in the field.
- Durable and flexible rubber exhaust tee provides excellent bubble diversion.
- UV inhibitors to help prevent discolouration of the white materials.
Specifications:
Connections |
DIN |
Type of first stage |
Over-balanced diaphragm design, environmentally sealed |
Body Type |
One piece forged body |
Number of HP ports |
2 (7/16" UNF) |
Number of MP ports |
4 (3/8" UNF) |
Weight |
DIN – 905g (2 lb)
|
Environmental Dry Kit |
Standard |
First stage exterior |
Satin |
Coldwater Use |
Yes |
Type of second stage |
Pneumatically balanced |
Opening Effort Control Knob |
No |
Integrated Venturi Lever |
Yes |
Mouthpiece |
Comfo-bite™ |
Exhaust tee |
Standard, one set |
Heat Exchanger for freezing resistance |
Yes |
Hose type |
Braided Flexi-hose |
Overall work of breathing (WOB) scores |
Avg. 0.90 joules/liter |
Nitrox compatible |
Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%. |