1:a-steg Poseidon Xstream

The objective; design the most reliable first stage in the world.

A patented ruby ball seal is automatically positioned by the floating seat which balances any upstream pressure equally with the pressure adjustment spring, maintaining the benefits of having a perfect ball as the sealing element without the risks that follow with incorrect sealing pressures. This makes the Xstream Range self-balancing, giving the same high performance, irrespective of the pressure in the cylinder.

Added to this the range has a built in anti freeze protection in its construction. The TDA (Thermo Dynamic Antifreeze) ensures that the through-flowing water keeps the ice away, entirely without fluids or extra diaphragms.

 Key performance

• Air, Nitrox, Trimix and Heliox
• DIN G5/8" connection
• 5 LP and 2 HP ports

 Tech spec

DIN 5/8" Connection Yes

EN144-3 M26 Connection n/a

Flowrate (l/cuft per min) 5500/194

Oxygen cleaned n/a

Safety Valve Yes

Separate Yoke Accessory

Technique Rolling diaphragm

Thermodynamic anti-freeze protection Yes

Valve Technique Spheric

Wheel Mount Side

Zytel HP Seat Yes