Apeks DB4 1e Trap bij sublub
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Apeks DB4 1e Trap

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Product description Apeks DB4 1e Trap

The DB4 is the latest cold-water innovation, an over-moulded first stage endcap that reduces ice build-up around the first stage. This technology greatly reduces the risk of a free flow in low temperatures. Cold water performance is further improved by heat exchangers on the first stage.

  • Compact machined first stage based on the expedition tested Apeks DS4 platform.
  • Break through, innovative over-moulded first-stage endcap and 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.
  • Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
  • 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.

  • Connections: DIN 5/8 Thread; (Yoke under demand)
  • Type of first stage: Over-balanced diaphragm design, environmentally sealed
  • Body Type: One piece forged body
  • Number of HP ports: 1 (7/16"" UNF)
  • Number of MP ports :4 (3/8"" UNF)
  • Environmental Dry Kit Standard
  • First stage exterior Satin
  • Orientation Convertible LH or RH

Specifications for Apeks DB4 1e Trap

Category1st stages
Tags AP091x
Product codeAP091x
CE cert for cold water

Regsets with a CE cold water certificate have been tested in waters below 10 degrees. When diving in NL/BE this comes in handy. In summer, the water on the surface may be warmer than 10 degrees, however, when decending to greater depths, you’ll hit various thermoclines in which the water temperature may be less than 10 degrees.

CE cert for cold waterYes
1st stage connection

The INT ( yoke) connection uses a clamp type to mount the regulator over the cylinder valve and is tightened into place by screwing the cap. This pushes the first stage into the sealing o-ring of the cylinder valve. With the DIN fitting the male part is screwed into the valve to securely capture the o-ring. We recommend the DIN connection, since this is a safer connection. This connection is mostly used for 300bar cylinders. However, the DIN300 bar connection also works with a 200bar tank valve

1st stage connectionYOKE
DIN300 bar
1st stage HP port

A second high pressure port on a 1st stage is necesarry if you are contemplating to dive with a computer that is air integrated. The transmitter will be attached to the second high pressure port so that you will always have backup analogue SPG.

1st stage HP port1 HP port
1st stage LP port4 lp-ports

In Europe, it is mandatory to have a special M26 regset and cylinder when diving with Nitrox. The regsets that are shown here, do not have this special M26 thread. However, these are all technically fit to dive with Nitrox up to 40%. Outside of Europe, you can use these regs to dive with Nitrox up to 40%.

NitroxTechnically suitable upto 40%
1st stage ACD

Several regset manufactured by Aqualung have the ACD system. This system makes sure that water will not get in to the 1st stage after diving or even if you have forgotten to put on your dust cap when you rinse your materials.

1st stage ACDNo ACD
1st stage air supply

When you dive with an unbalanced 1st stage, breathing may become a little harder as your cylinder is being depleted of air. A balanced 1st stage will give you an even resistance during your dive, as long as your cylinder contains more than 20 Bar. An overbalanced 1st stage will give you a little more pressure when at depth, which will make breathing at greater depth easier. You will be able to feel the difference from a depth of 20 to 25 meters.

1st stage air supplyOverbalanced
1st stage type

A piston 1st stage is easier to service, since there are less parts. However, a piston 1st stage needs to be serviced earlier than other 1st stages, since the water does get inside the 1st stage. A membrane 1st stage may be less maintanace- sensitive, however, you’ll have to be more precise in adjusting it. If you would like to dive in cold(er) waters, we would recommend a 1st stage with a membrane.

1st stage typeMembrane

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Elvire, Beringen 20-6-2021
10 Prima. Heel goede service. Wat ik had gekocht paste niet en moest ik terugsturen. Ging heel soepel. Boden mij aan om me verder te helpen ( moet ik nog op reageren)
Tjardi, Langweer 19-6-2021
10 Snel en correct verzonden. Niets op aan te merken.
Sonja, Spijkenisse 19-6-2021
10 Zeer mooie spullen nette en snelle levering
Monique, Spijkenisse 19-6-2021
10 Zeer te spreken over de aanschaf. Had te groot besteld en kon snel een maatje kleiner verkrijgen. Zeer tevreden!
Dick, Hoogezand 17-6-2021
10 Heel eenvoudig te bestellen, heel snel in huis, en lekker achteraf betalen. Super goed!!
Ellie overgaauw, Coevorden 17-6-2021
7 Dit bedrijf denk met je mee, en regelt zeer snel dat je het bestelde in huis hebt.
Ronald pietersma, Alkmaar 16-6-2021
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Tim, Kerkrade 16-6-2021
10 Top
Michael, Belgie 16-6-2021
9 Product bleek toch niet voorradig, na navragen bij leverancier was deze ook niet op voorraad maar werd zsm geassembleerd en verstuurd. Na 1 week vertraging Product ontvangen.
Richard, Zwolle 16-6-2021
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