Technical Information
A700 CARBON BLACK TECH Second Stage:
- Hand-made carbon fiber front cover, metal casing and metal valve housing make for a rugged second stage able to withstand years of aggressive diving.
- Carbon fiber is virtually bulletproof and also extremely lightweight. The A700 Carbon’s cover weighs only 10 grams, compared to the 42-gram weight of the original A700’s metal cover, resulting in more comfortable diving.
- DLC Black Tech coating protects from corrosion and scratches and lends a technical look to the regulator.
- Special Torx cover screws are able to support a higher tightening torque without damage.
- Metal case construction enables the use of a larger diaphragm inside a compact casing, increasing breathing sensitivity.
- Air-balancing smoothes out the inhalation effort when diving at varying depths and supply pressures.
- User controls include a diver-adjustable inhalation effort knob and coaxial Venturi-Initiated Vacuum Assist (VIVA) switch.
- Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
- Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn’t inhibit airflow.
- Weight: 8.2oz/233g.
- Airflow at 2900psi/200bar: 2000 l/ min – 71 SCFM.
- Maximum low pressure: 203psi/14bar.
MK25 EVO BLACK TECH First Stage:
- Air balanced flow-through piston in a Black Tech-coated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
- DLC Black Tech coating protects from corrosion and scratches and lends a technical look to the regulator.
- Patent pending XTIS (Extended thermal Insulating system) fully insulates the inner mechanism from the environment, improving cold-water resistance by 30% and delaying ice formation in extreme cold-water conditions without compromising breathing performance. Key insulation system components are visible in blue.
- New spring insulating coating, body insulating bushing, anti-freeze cap, bigger body and cap thread all work in concert with the XTIS to improve cold-water performance.
- Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
- Two opposing high pressure ports allow the first stage to be positioned either up or down.
- Five high-flow low pressure ports on a swivel turret maximize hose routing options.
- External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
- Available in either a 3364psi/232bar INT or 4350psi/300bar DIN configurations.
- DIN version comes with a new dual-compound wheel that features a new ergo shape and soft grip on a rugged black nylon frame.
- Weight: INT 232 (oz/g): 27.9/790; DIN 300 (oz/g): 20.1/572.
- Airflow at 2900psi/200bar: (l/min/ SCFM): >8500/301.
- Intermediate pressure (psi/bar): 130-142/9.0-9.8.
