XSTREAM RANGE -
The objective; design the most reliable HP valve in the world. Every engineer knows the benfits of using balls in valve arrangements, since they will never be misplaced and will always end up in their perfect position. Unfortunately, varying upstream pressures will either push the ball too forcefullly into the seat or leave it unsecurely loose, giving unbalanced characteristics.
By inventing the oating seat (which automatically repositions the ball) the increased upstream pressure is balanced equally with increased and counter-acting compression forces from the pressure adjustment spring, maintaining the benefits of having a perfect ball as the sealing element. The Xstream regulator is also self-balancing, which gives the same high performance irrespective of the pressure in the cylinder. When the seat is moved upwards by the high pressure, the design causes the upper pressure spring to compress and thus exactly self-balance the powers of pressure.
Xstream also has a built in anti freeze protection in its construction. TDA (Thermo Dynamic Antifreeze) ensures that the through- flowing water keeps the ice away, entirely without fluids or extra diaphragms.
JETSTREAM - THE ULTIMATE IN RELIABILITY
Controlling the power of a massive air flow, astonishingly reaching some 2100 litres/minute is an engineering challenge. The solution to this was to obtain a precision regulation, keeping breathing pressure to within +/- 5 mm.w.c throughout the inhalation cycle, regardless of depth and demand. Called a servo-assisted valve, it works in the same way as does the power steering you may have on your car – it’s all about compensation.
Prior to diving, when you pressurize the regulator, the main blue bladder valve is in ated with the interstage pressure, along with all inner volumes including the upstream side of the servo valve.
When this is done a “swoshing” sound of streaming air is heard.
The system is then activated. On inhalation, the forces from the inhalation diaphragm easily overcome the light forces to crack open or “tilt” the servovalve and in turn evacuate all inner volumes. The main blue bladder valve then collapses and in turn lets an amount of gas out, corresponding to the actual demand.
This technology ensures that the lightest possible effort can result in an almost limitless amount of gas on inhalation.
All the more astonishing is the fact that Poseidon introduced this technology to the market as far back as 1981.
The Jetstream: traditionally popular with technical divers as well as the Swedish and US navies. An easy breathe at any depth, the second stage incorporates a safety valve that allows you to continue to breathe normally in the unlikely event of abnormally high pressure air being delivered to the second stage. Approved to EN250 cold water standard.
CYKLON - EVEN MORE EXPERIENCED THAN YOU...
A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions.
When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time...
The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues.
The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.