Apeks EVX TUNGSTEN Dive Regulator

Apeks EVX TUNGSTEN Dive Regulator

The EVX Tungsten pairs an over-balanced first stage with a balanced laminar-flow second stage and a PVD-coated finish. Its inlet closure, dry kit and adjustable breathing controls make it a feature-rich choice for divers who want protection and configuration flexibility in one regulator platform.

Features and benefits

• Over-balanced first stage. The diaphragm mechanism increases intermediate pressure slightly faster than surrounding pressure as you descend, helping compensate for denser breathing gas at depth.
• Dry environmental chamber. The sealed chamber keeps water and sediment away from the first-stage spring mechanism and supports resistance to freezing in cold water.
• Automatic inlet closure. The inlet closes when the first stage is disconnected, helping keep water and debris out. Continue to protect the connection with its clean, dry dust cap.
• Heat exchange. The heat exchanger transfers warmth from the surrounding water to the valve area, helping counter the cooling that occurs as gas expands.
• Balanced second stage. Pneumatic balancing reduces the force needed to open the demand valve, helping the second stage respond smoothly as you inhale.
• Laminar-flow valve. The EVX valve is designed to guide gas smoothly through the second stage, reducing turbulence in the breathing path.
• Inhalation-effort adjustment. The adjustment knob lets you change the effort needed to start a breath, so you can tune the response within the regulator’s operating range.
• Venturi control. The lever changes airflow assistance inside the second stage. Use the pre-dive setting for surface handling and the dive setting as directed in the manual.
• Progressive purge. The purge responds to how firmly you press it, giving you control over the flow used to clear the second stage.
• Reversible hose routing. An authorised technician can configure the second stage for left- or right-hand hose entry to suit your equipment layout.
• Interchangeable exhaust. The exhaust options let you choose a compact layout or wider bubble diversion to suit your diving and field of view.
• Comfo-Bite mouthpiece. The silicone palate bridge supports the second stage with less need to clench your jaw, which can make longer dives more comfortable.
• Hose-routing choice. The first-stage port layout provides several supply-hose positions and angled high-pressure connections for gauges or transmitters.
• Flexible breathing hose. The braided hose bends readily around your equipment, helping reduce tension at the second-stage connection.
• Tungsten finish. The dark PVD coating adds a hard protective finish to exposed metal surfaces, helping resist wear during regular use.

Setup and compatibility

Connection: DIN, Yoke. Choose the fitting that matches your cylinder valve and its pressure rating.

What’s included

First stage, primary second stage and hose.

Care, rinsing and storage

After each dive, connect the assembled regulator to a scuba cylinder and open the valve to pressurise the system. Keep it pressurised while fully submerging the first stage, second stages and connected hoses in fresh water. This allows thorough cleaning of the exposed components and hoses while helping prevent water entering the internal air passages, where it can cause corrosion and damage. Keep the cylinder secure throughout cleaning.

For routine cleaning, Dive Gear Australia recommends Cressi Neoclean Wetsuit Wash Neoprene Cleaner 500 mL or Revivex Wetsuit Shampoo 10 oz to help remove salt, chlorine and everyday residue. Dilute according to the cleaner’s label, then rinse thoroughly with fresh water.

Keep the regulator pressurised throughout washing and rinsing. Lift it out of the water and dry the first stage and cylinder connection before closing the cylinder valve, releasing the pressure and disconnecting. Fit the clean, dry dust cap, then allow the regulator to dry in the shade. Store it with the hoses loosely curved, without sharp bends or tension.

Before each dive, inspect the mouthpiece, hoses and connections for wear or damage. Have your regulator serviced by an authorised Apeks technician at the interval specified in its manual, or sooner if it leaks, is damaged or its breathing performance changes. Leave internal adjustments and repairs to a qualified technician.