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- Unique over-balanced, diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase.
- An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.
- The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use.
Sidemount evolved from cave diving but it is such a safe and comfortable way of diving with multiple cylinders that it has now taken off as a system and technique that all technical and advanced recreational divers can use.
As a world leader in the design and manufacture of diving equipment with a proud history of innovation Apeks has developed the first CE approved sidemount regulator set specifically for this type of diving.
Our test divers were amazed when they tried Sidemount diving. Try it and you may never go back!
2 ea. XTX50 DIN regulators with 5 port swivel turret
One XTX50 has a 83” / 210cm hose
One XTX50 has a 24” / 60cm hose
2 ea. custom length MP inflation hoses (one for buoyancy system, one for drysuit)
2 ea. brass pressure gauges with 6 inch hoses (units in PSI)
1 ea. 90° elbow fitting
Four medium-pressure ports all mounted on a rotating turret. This results in optimal hose routing while eliminating sharp bends in the hose.
Features an innovative Diver Changeable Exhaust system (DCE). This system gives the diver the ability to change from a small exhaust tee to a large exhaust tee. This gives the user a choice, wider exhaust tee for minimal bubble interference (essential for underwater photography) and narrow exhaust tee for a smaller compact comfortable regulator. The regulator is supplied with both sets of exhaust tees.
Optional 5th port is available for sidemount or twin cylinder set ups.
Can be converted from a right-handed hose configuration to a left-handed one. The process of changing the regulator to a left-handed configuration is both quick and simple. However this procedure must ONLY be performed by an APEKS Authorised Service Technician.
Available in yoke or DIN configuration.
Braided flexi-hoses are now standard on all models. These hoses are lighter weight, more flexible and more durable.
Suitable for coldwater use (below 10 C / 50 F).
Compatible with EAN40 out of the box.
Uses the DST first stage
Unique over-balanced, diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.
2 HP ports and 4 MP ports on a rotating turret are angled for optimum hose routing
An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.
Pneumatically-balanced second stage results in smooth, easy breathing.
The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used – press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the centre for the full effect of the purge, i.e. when regulator clearing etc.
The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation.
Easy-to-grip opening effort control knob keeps the diver in control.
The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mould, yeast and algae.
A silicone exhaust valve improves the breathing performance of the regulator.
The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.
Connections DIN only
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type Cylindrical, MP ports mounted on swivel turret
Number of HP ports 2 (7/16″ UNF)
Number of MP ports 5 (3/8″ UNF)
Environmental Dry Kit Standard
First stage exterior Chrome over marine brass
Orientation Convertible LH or RH
Coldwater Use Yes
Type of second stage Pneumatically balanced
Opening Effort Control Knob Yes
Integrated Venturi Lever Yes
Exhaust tee Diver Changeable – comes with 2 sets
Heat Exchanger for freezing resistance Yes
Hose type Rubber breathing hoses and braided flexi inflator hoses
Overall work of breathing (WOB) scores Avg. 0.70 joules/liter
Nitrox compatible Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.
Gauge face Tempered glass
Over-pressure relief on back Yes
Scuba Dive Store always offer an extended returns policy of 30 days – so you can rest assured that if the suit, piece of diving equipment or gift doesn’t suit then just send it back and we will either exchange it or offer a full refund less any postage costs.
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