£159.00 RRP £218.00Please note: This item cannot be shipped outside the European Union - learn more
The Apeks XTX 50 Octopus is the perfect redundant second stage for any of the Apeks primary regulators. Designed to meet the demanding coldwater standards the XTX 50 has a balanced valve for performance, an inlet heat exchanger, full metal valve barrel, venturi and inhalation controls to ensure performance and reliability even in extreme cold conditions.
The inlet heat exchanger and full metal valve barrel help to disipate the cold generated as air decompresses between each stage, reducing the potential risk of ice crystals forming on critical components.
A venturi lever allows control of the air flow within the housing, directing it to either provide full performance and air flow or free flowing protection by forcing air back towards the diaphragm. The inhalation adjuster allows the breathing effort required to open the valve to be increased from its optimal setting as required by the diver.
The XTX50 is finished off with a high visibility yellow front cover and trim and is fitted with a standard length braided octopus hose. The braided hose offers improved UV protection over traditional rubber hoses and also significantly raises the burst pressure of the low pressure hose.
- Fully balanced valve mechanism
- Heat exchanger
- Venturi control
- Diver inhalation adjustment
- Anti-bacterial mouthpiece
- Braided yellow low pressure hose
Apeks XTX50 Octopus - Features
?This feature allows the diver to adjust the inhalation setting from the set level and increase the effort required to open the 2nd stage valve to deliver air.
?The venturi control affects how air flows in the 2nd stage. In it's positive position the flow of gas creates a vacuum against the diapragm, helping to open the valve. In it's negative position it will divert gas back against the diaphragm helping to close the valve. It is basically used to help prevent free flowing.
|Cold Water Rated|
?Cold water has adverse effects on regulators and can cause some to freeze so each regulator combination must be tested during manufacturing for their performance in different water temperatures.
Cold water is defined by EN250 as below 10°C. If a regulator combination cannot meet the performance standards below 10°C then they are only suitable for warm waters.
EN250 / (EN250A >10°C)
To pass the regulator must provide at least 62.5 L/min of air at 50M depth above 10°C.
|Cold & Warm Water|
?Environmentally sealed 1st stages offer greater protection against freezing when diving in cold water (below 10 degrees C)
Scubapro have a new method of cold water proofing their first stages called the eXtended Thermal Insulating System or XTIS which still allows water into the first stage but the internal parts that come into contact with the water are coated to prevent ice from forming.
?Unbalanced regulators are affected by the pressure in the cylinder, becoming slighty harder to breathe from when the pressure starts to drop.
Balanced regulators are not affected by the cylinder pressure or depth.
Over-balanced regulators achieve unprecedented performance by increasing your air supply the deeper you go providing the best breathe for deep divers.
|High Pressure Ports|
?High pressure ports supply the pressure gauge and wireless transmitters for dive computers
|Low Pressure Ports|
?Low pressure ports supply the 2nd stages and inflator hoses
?An Unbalanced second stage is simply a lever operated valve that is opened and closed as the diaphragm is pulled inwards by the vacuum that is created when the diver inhales. An unbalanced second stage is affected by increased pressure at depth, slightly increasing the effort required to open the valve.
A Balanced second stage overcomes the effects of increased pressure by utilising a balancing chamber. This chamber takes some of the work away from the spring mechanism, allowing a smaller spring to be used which results in an easier breathe. As the chamber uses air to balance the valve it maintains the same resistance as the diver descends and ascends, keeping the inhalation effort the same.
|Weight in Grams (approx)|
?The weight includes the first stage (DIN fitting), hose and second stage.
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