First Stage Archives - Singapore Scuba Diving Shop Online https://store.orpheusdive.com/department/regulator-accessories/first-stage/ Orpheus Dive Sun, 07 Mar 2021 06:52:14 +0000 en-US hourly 1 https://wordpress.org/?v=6.2.2 https://store.orpheusdive.com/wp-content/uploads/2021/03/cropped-store-orpheus-ico-32x32.png First Stage Archives - Singapore Scuba Diving Shop Online https://store.orpheusdive.com/department/regulator-accessories/first-stage/ 32 32 Scubapro Mk2 Evo https://store.orpheusdive.com/shop/regulator-accessories/first-stage/scubapro-mk2-evo/ Wed, 10 Feb 2021 09:21:56 +0000 https://store.orpheusdive.com/?post_type=product&p=6304 A totally evolved classic downstream piston first stage, now more of a work-horse than ever. With increased breathing sensitivity and better airflow, freez-ing resistance is dramatically increased. Check out the new MK2 EVO!

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]]> Scubapro Mk11 https://store.orpheusdive.com/shop/regulator-accessories/first-stage/scubapro-mk11/ Thu, 08 Oct 2020 11:07:28 +0000 https://www.orpheusdive.com/onlinestore/?post_type=product&p=5429
  • Now 20% lighter, same internal performance
  • Balanced, diaphragm controlled High Performance
  • Externally Adjustable Intermediate Pressure
  • 4 LP (2 High-Flow-Port) and Dual HP Ports
  • Weight: INT 232: 860g; DIN 300: 640g

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    ]]>         Scubapro Mk17 EVO https://store.orpheusdive.com/shop/regulator-accessories/first-stage/scubapro-mk17-evo/ Thu, 08 Oct 2020 11:01:16 +0000 https://www.orpheusdive.com/onlinestore/?post_type=product&p=5424 The new MK17 EVO is completely sealed off from the elements, ensuring trouble-free operation no matter how cold or murky the water gets. It is more compact yet delivers better breathing
    performance than its predecessor. Its improved internal design allows more airflow from the LP ports which have been reconfigured for better hose routing.

    • Air Balanced Diaphragm
    • New machined body
    • 2 HP ports
    • 4 High flow ports
    • New cover and caps
    • New DIN wheel
    • Weight: INT 232: 710g; DIN 300: 490g

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    ]]>         Apeks XTX DST https://store.orpheusdive.com/shop/regulator-accessories/first-stage/apeks-xtx-dst/ Thu, 08 Oct 2020 10:31:45 +0000 https://www.orpheusdive.com/onlinestore/?post_type=product&p=5416 The Apeks DST First Stage Diving Regulator is the exact same unit that is from the XTX 50 diving regulator combination. It is ideal for divers who wants a swivelling dry seal first stage, that comes with 4 LP and 2 x HP ports. It is only available in DIN configuration.

    It is a cold water over balanced first stage, that is protected by an environmental seal that helps prevent ice formation. This is also a popular purchase amongst our customers who are looking for just the 1st stage alone, as the move towards double cylinder diving in either back mount or side mount configuration.

    • Dry Sealed System with swivel turret (DST)
    • 4 MP ports, 4 x 3/8 UNF
    • 2 HP ports, 7/16 UNF
    • Available in both DIN and yoke fitting

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    ]]>         Scubapro Mk 25 EVO https://store.orpheusdive.com/shop/regulator-accessories/first-stage/scubapro-mk-25-evo/ Sat, 19 Mar 2016 14:17:25 +0000 https://demo2.chethemes.com/electro/?post_type=product&p=2707
  • Air balanced flow-through piston in a chrome-plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
  • Patented XTIS (Extended Thermal Insulating System) fully isolates the mechanical elements from the cold, increasing freezing resistance 30 percent over the previous  MK25 without compromising breathing performance. Key insulation system components are visible in blue.
  • New spring insulating coating, body insulating bushing, anti-freeze cap, bigger body and cap thread all work in concert with the XTIS to improve cold-water performance.
  • Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
  • Two opposing high pressure ports allow the first stage to be positioned either up or down.
  • Five high-flow low pressure ports on a swivel turret maximize hose routing options.
  • External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
  • Available in either 3364psi/232bar INT or 4350psi/300bar DIN configurations.
  • Weight: INT 232 (oz/g): 27.9/790; DIN 300 (oz/g): 20.1/570.
  • Airflow at 2900psi/200bar: (l/min/SCFM): >8500/301.
  • Intermediate pressure (psi/bar): 133-142/9.2-9.8.

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    ]]>     THE PISTON TECHNOLOGY

    The general advantage of a piston-based first stage lies in its reliability and reduced maintenance requirements, due to an effective but simpler mechanism with less moving parts. More importantly, no other design can reach the high air delivery rate of a balanced piston controlled first stage.

    Air balanced flow-through piston

    First stages with air balanced pistons deliver significantly more air to the second stage than any other first stage, while their performance is totally unaffected by the changing tank pressure. A balanced piston allows the use of lighter and more sensitive components, resulting in ultra fast breathing response, instant delivery of air on demand and extra high air flow, especially in low tank pressure ranges. The tired diver benefits from of a smoother breathing regulator during the ascent or deco stop. Balanced piston first stages are the first choice of demanding sport divers and professionals. A balanced piston performs equally in both warm and cold water environments. The SCUBAPRO MK25 first stage uses this technology.

    Balanced-piston first stages are the first choice of demanding deep sport divers and professionals. First stages with air balanced pistons deliver significantly more air to the second stage than any other first stage, while their performance is totally unaffected by changing tank pressure and depth. A balanced piston allows the use of lighter and more sensitive components, resulting in an ultra-fast breathing response, instant delivery of air on demand and extra-high air flow, especially in low tank pressure ranges.

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