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ATX40 DS4 with ATX40 Octopus

ATX40 DS4 with

ATX40 Octopus

Brand: Apeks

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*Once you’ve placed an order, you will receive an Order Acknowledgement email to confirm your order details. After confirmation, your order is reserved for you for 72 hours for pick up at our store.

Details

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ATX40

Before the XTX range of regulators came along, the ATX models ruled the seas. The ATX40 is still available today and offers a fully balanced first and second stage that are suitable for cold-water use below 50°F (10°C) and is compatible with EAN40 out of the box. This high-performance regulator boasts an over-balanced first stage coupled with a pneumatically balanced second stage. The smooth, quiet breath is sure to enhance your diving enjoyment. Suitable for cold-water use thanks to its first stage environmental dry seal and second stage heat exchanger. 

The APEXS ATX40 uses the DS4 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. An environmental dry system keeps water out of the main spring chamber thus preventing ice build-up and keeping silt and contamination out. The chromed marine brass first stage has four medium-pressure (3/8" UNF) ports and one high-pressure port (7/16" UNF). 

The XTX purge buttons are large and easy to operate even with thick gloves. Braided flexi-hoses are now standard on all models. These hoses are lighter weight, more flexible and more durable. Pneumatically-balanced second stage results in smooth, easy breathing. The integrated venturi control provides a performance boost at depth while preventing unwanted free flow at the surface. An extremely efficient 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. Offers a compact, integrated exhaust tee. Regulator weighs 39.86 oz. (1130 g) and comes with an owner's manual.

 

Features & Benefits

  • APEKS ATX40 DS4 Yoke Regulator:

  • Before XTX Range of Regulators Came Along, ATX Models Ruled the Seas

  • ATX40 is Still Available Today

  • Highly Technical Design

  • Braided 3/8" Flexi-Hose

  • Total Weight: 39.86 oz. (1130 g)

  • Nitrox Ready Up to 40% O2 Out-of-the-Box

  • Suitable for Cold Water Use Below 50°F (10°C)

  • Owner's Manual

First Stage:

  • Unique Over-Balanced Diaphragm First Stage

  • Chromed Marine Grade Brass Construction

  • Environmentally Sealed to Keep-Out Contaminates

  • Delicate Internal Parts Not Exposed to Contaminants: Salt, Sand, Chlorine or Pool Acids

  • Requires Less-Maintenance

Secondary Environmental Diaphragm Membrane: 

  • First Stage Completely-Sealed-Off 

  • Dry Ambient Pressure Chamber 

  • Second-Layer of Corrosion Resistance and Prevention of Freezing in Cold-Water-Use

  • Four 3/8" UNF (Unified National Fine) Medium Pressure Ports

  • One 7/16" UNF High Pressure Port

  • HP & MP Ports Angled for Optimum Hose Routing

Second Stage: 

  • Pneumatically-Balanced Second Stage

  • Smooth, Easy Breathing

Purge Button: 

  • Large and Easy to Operate 

  • 2-Stage Progressive Purge 

  • Press Purge On-Side for Lower Flow Rate 

  • Useful for Filling Lift Bags etc. 

  • Press Center for Full Purge 

  • Great for Regulator Clearing etc.

  • Large Venturi Lever w/Soft Touch Rubber Grip

  • Silicone Exhaust Valve Improves Breathing Performance

  • Comfo-Bite Mouthpiece Virtually Eliminates Jaw-Fatigue

Heat Exchanger (patented): 

  • Dissipates Cold Caused by Gas Expansion 

  • Draws in Warmth of Ambient Water 

  • Helps Prevent Freeze-Ups

ATX40 Octopus

This octopus is based upon the XTX40 second stage and includes left / right hand reversibility, cold water capability and the performance you would expect from an Apeks pneumatically balanced valve. It features a diver-adjustable venturi control, a high visibility yellow front cover, yellow accent pieces and a 36” yellow hose.

Features & Benefits

  • 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.

  • 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.

  • Braided flexi-hoses are now standard on all models. These hoses are lighter weight, more flexible and more durable.

  • Compatible with EAN40 out of the box.

  • Pneumatically-balanced second stage results in smooth, easy breathing.

  • 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.

  • The Octopus is manufactured with active protection against infection as all moulded 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

  • Suitable for cold water use (below 10 C / 50 F).