![]() 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. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.Ĭontrolling the power of a massive air flow, astonishingly reaching some 2100 litres/minute is an engineering challenge. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. The Poseidon Cyklon Junior was introduced in 1958. 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 test represents one single environment the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. When a new regulator is released on the market, it has to pass the EN 250 test. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. ![]() Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. TDA (Thermo Dynamic Antifreeze) ensures that the through- flowing water keeps the ice away, entirely without fluids or extra diaphragms.Ī regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Xstream also has a built in anti freeze protection in its construction. ![]() 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. The Xstream regulator is also self-balancing, which gives the same high performance irrespective of the pressure in the cylinder. Unfortunately, varying upstream pressures will either push the ball too forcefullly into the seat or leave it unsecurely loose, giving unbalanced characteristics.īy 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. 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. The objective design the most reliable HP valve in the world.
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