Second Stage Design
The Most Personal
Your life depends on it
with every “natural” breath
You need assurances
about the part you put into your mouth – the single
most important element of your diving system. Atomic
second stages give you that assurance. The assurance
of reliability with a low-maintenance design that is durable
and does not require constant fine-tuning to perform
assurance of easy and natural breathing at any depth. The assurance
that corrosion of critical internal parts will not impair a
single precious breath thanks to Titanium used in every
stage. Assurance is designed and built into each Atomic second
stage you trustingly put into your mouth. So breathe easy...and
have a great dive.
The Atomic Aquatics Second Stage Is Our Signature
Valve Body (T2x/B2/ST1)
The foundation of any regulator second stage is the valve
body, and nobody manufactures this crucial component to be as exacting and
durable as Atomic. We machine our valve body from Ti-6 Al-4v solid Titanium
on our very precise Swiss CNC machines. Because itís Titanium, itís very lightweight,
and will last forever without showing a hint of corrosion (see the comparison
photo on page 4). Performance of Titanium parts will never be altered by the
effects of sea water.
Competitors: Some of our competitors use plastic for the regulator valve body. Plastic is not an optimum-performance material for this application. Even though it is less expensive, plastic can wear out or crack over time. Donít settle for a cost-cutting plastic part for this very critical part in your regulator.
Kevlar Pivot Sleeve
Since the Atomic Titanium demand lever pivots off
the valve body, a low-friction material with exceptional wear resistance
is required to prevent metal-to-metal contact that leads to galling.
Our Kevlar sleeve material endures millions of smooth cycles without
Competitors: Most use
softer grade plastics or metal to metal pivot parts that will eventually
wear deep grooves causing the regulator to breathe harder and harder
The demand lever is the mechanical link to your
breathing air supply. If it fails, air delivery stops. Because our
demand lever is formed from a propriety Titanium alloy, our lever is
immune from stress-induced fatigue or corrosion and breakage.
Competitors: Our competitors
use stainless steel demand levers that require yearly inspection and
service for rust. Stainless steel is
much cheaper than Titanium, but cannot compare to the superior corrosion-resistance
Poppet Second Stage
easier and deeper because of the pneumatically-balanced Poppet design.
Having a balanced second stage means the diver will have the same low
breathing effort regardless of how much air is remaining in the cylinder
or any slight air pressure variation from the first stage.
Poppets are the norm these days. If the second stage you are researching
isnít a balanced design, the design is too outdated to consider buying.
Atomic redesigned this very basic second stage component
into a large elliptical shape molded from a highly-resilient special
grade silicone rubber. The valve attaches to a high-flow support grid,
resulting in a dramatic reduction in your exhalation effort at depth.
Competitors: Other regulators are fitted with very
outdated flat and round valve designs that date back to the sixties.
Atomic Automatic Flow Control (AFC)
Atomic AFC is so advanced, we were granted a US patent for its design.
The venturi effect inside a second stage
makes it breathe easy, and the Atomic AFC eliminates the manual
adjustment normally needed to regulate venturi effect as you dive
dials to turn or buttons to push ‚ but we include a rapid adjustment
knob for rare special situations. A computer-designed airfoil
inside the mouthpiece is connected to a pressure-sensing diaphragm,
the airfoil to change position with response to depth. The AFC
is the reason Atomic regulators breathe with a comfortable natural
at any depth. (US Patent #5,678,541)
Competitors: Others use a diver-controlled
switch or dial to manually adjust the venturi effect inside the second
stage as dive depth changes. This requires distracting thought and
aggravation if you turn the dial the wrong way. The Atomic AFC lets
you enjoy your dive...automatically.
Patented Seat Saving Dynamic Orifice
Our Seat Saving Dynamic Orifice design prolongs the
life of the low-pressure poppet seat to maintain the crisp "like new" factory
tuning and prevent the second stage from leaking between servicing.
This exclusive Atomic patented design allows the seat and orifice to
make contact only when the regulator is pressurized. When not in use,
the orifice automatically retracts away from the seat to prevent damage
during storage. (US Patent #5,803,703)
Competitors: Our competitors would like to have this
patented Atomic feature. One of the biggest problems with all standard
second stages is the contact area between the sharp metal orifice and
the soft rubber low-pressure seat. In these fixed orifice designs,
the seat and orifice are pressed together by the demand lever spring
during storage, resulting in a deep groove or cut in the seat. Over
time, this can cause a second stage to develop a leak even if it hasn't
been used. Others also use plastic or brass for their orifice ‚ Atomic
uses Titanium for longevity.
Perhaps one of the most admired features of Atomic
second stages is the patented comfort swivel which allows 30° rotational
movement without binding or kinking. (US Patent #7,188,869)