First stage

  • Auto Closure Device (ACD): Keeps the inlet closed when not connected to a cylinder to protect internal parts from debris and corrosive water, helping maintain oxygen compatibility and preserve internal lubrication.
  • Permanent Dry Chamber: Isolates internal components from moisture to enhance freeze resistance in cold-water dives.
  • Over-balanced (Auto-Balanced) mechanism: Compensates interstage pressure to reduce breathing effort consistently at all depths and tank pressures.
  • Balanced diaphragm: Provides consistent, superior performance.
  • Blue high-pressure seat: Durable sealing seat that opens and closes with every breath and handles increased breathing gas density.
  • Dust cap protection: Attached dust cap protects the inlet fitting and ACD and seals the first stage when off the tank.
  • Ports: 2 HP ports (7/16") and 4 MP ports (3/8") oriented in a "T" shape for streamlined hose routing.
  • Availability: DIN (4,350 psi / 300 bar max.) and Yoke (3,300 psi / 232 bar max.).

Second stage

  • Cover opening channels: Radial openings direct water sideways over the diaphragm to reduce freeflow and lower cracking effort by about 20% in strong currents.
  • Venturi adjustment switch: Allows precise control of valve assistance between MIN and MAX to adjust inhalation effort; designed for use with gloves.
  • Pneumatically balanced: Ensures smooth, easy breathing at all depths.
  • Heat exchanger: Helps prevent ice formation on the valve inlet.
  • ComfoBite mouthpiece: Patented orthodontic silicone mouthpiece with a palate bridge to reduce jaw fatigue and improve retention.
  • Interchangeable, reusable mouthpiece clip: Tool-free mouthpiece changes to reduce plastic waste.
  • Braided hose: Provides flexibility, comfort, and compact transportability.
Weight 5 kg
Dimensions 30 × 25 × 15 cm
Size

DIN, INT

Brand

AQUALUNG DIVE

Reviews

There are no reviews yet.

Be the first to review “PK HELIX PRO OCT”

Your email address will not be published. Required fields are marked *