Apeks MTX-R Regulator

Apeks MTX-R Regulator


Apeks MTX-R Regulator is based on the MTX military regulator and is a super tough, rugged, high performance, go anywhere regulator. The MTX-R has excellent cold water performance and has a greatly reduced risk of free flow. This has been achieved by improving several areas, including an innovative endcap solution that solves a long-challenged reality for cold-water divers of first stage freeze up. This regulator is designed to meet all aspects of the NEDU (Navy Experimental Dive Unit) military requirements for diving in very cold water. The MTX-R is highly reliable and also very easy to service out in the field.

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Apeks MTX-R Regulator

  • 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 faster rate than ambient. This results in superior performance at depth
  • Compact environmentally dry sealed diaphragm system completely eliminating the maintenance issues associated with silicone, oil or grease filling
  • Break through, innovative over-moulded first-stage endcap & environmental diaphragm helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage
  • Easy to grip DIN hand-wheel or over-moulded yoke hand-wheel, only requires one hand to release
  • DIN, Yoke and M26 Thread available, 300bar, 232bar and M26 300bar (O2) 

WeightDIN – 1.193 kg (2.63lbs)
Yoke – 1.339 kg (2.95 lbs)

Max working pressures1st Stage: DIN - 300 bar (4351 psi) Yoke - 232 bar (3365 psi) 2nd Stage: 9-10 bar (131-145 psi)

Part No.sAP0060 – MTX-R 1st and 2nd stage with yoke
AP0061 – MTX-R 1st and 2nd stage with DIN
AP0063 – MTX-R 1st stage DIN connection
AP0062 – MTX-R 1st stage yoke connection
AP0064 – MTX-R 2nd stage

Certified toEN250A

Maintenance kit no.s1st stage – AP0241
2nd stage – AP0219

Temp range32.9°F - 12.778°F
0.5°C - 55°C

Connection TypesDIN and Yoke

Service intervalsAnnual

Key featuresCold water use
Easy to use
Durable & reliable

Intended useRecreational, technical and extreme cold water diving

WOB1.75 J/l

Nitrox/Oxygen compatibleUp to 40% O2 outside the EU (European Union), within the EU anything above 21% O2 must use an M26 Connection


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