|
|
|---|
Valve Type |
DEMAND |
Adjustment |
KNOB/PRE-DIVE SWITCH |
Balancing System |
MECHANICAL |
Integrated Purge Button |
YES |
Mouthpiece |
ORTHODONTIC |
Nitrox Compatibility |
STANDARD TO 40% |
Ambidextrous |
|
Integrated Swivel |
YES |
Weight (without hose) |
6.8 OUNCES |
Dimensions (front profile) |
2.67 INCHES |
First Stage Configurations |
FDX-10 |
Minimum Cracking Effort |
DIVER ADJUSTABLE |
Factory Set Inhalation Effort |
0.0 - 2.5 CIW* |
Work of Breathing |
.87 JOULES |
Warranty |
2 YEAR |
Limited Lifetime Service Agreement |
YES |
30-Day Satisfaction Guarantee |
YES |
| FEATURES & FUNCTIONS |
FDX-10 |
Valve Type |
BALANCED DIAPHRAGM |
Primary Material |
FORGED MARINE BRASS |
Low Pressure Ports |
4 |
High Pressure Ports |
2 |
| Dry Valve Technology (DVT) |
YES |
Integrated Swivel |
|
Nitrox Compatibility |
STANDARD TO 40% |
300 BAR DIN Fitting |
OPTIONAL |
Sealed Valve Design |
YES |
Environmental Protection |
YES |
Weight |
28 OUNCES |
Factory Set Intermediate Pressure |
138-142 PSI |
Pressure Drop |
9 PSI |
Warranty |
2 YEAR |
Limited Lifetime Service Agreement |
YES |
30-Day Satisfaction Guarantee |
YES |
WORK OF BREATHING
Did you know that it costs energy to breathe? The
amount of energy your regulator requires to move each liter of air is
called work of breathing (WOB). Lower work of breathing equals lower
effort required to breathe and increased comfort and safety during a
dive.
How to Read Work of Breathing Charts
The computer-generated breathing machine chart presented above
represents a regulator's performance per standards established by the
U.S. Navy's Experimental Diving Unit. Tests are conducted at 198 feet
with approximately 3000-psi supply pressure, 25 breaths per minute of
2.5 liters each.
(1) Inhalation - The chart shows
one complete breath cycle, starting with inhalation on the left and
continuing along the bottom to the right, staying mostly below 0.0;
thus the inhalation work of breathing is reported in negative numbers.
(2) Exhalation - The exhalation
effort begins on the right and runs across the top to the left. These
are all positive numbers since a diver (or the machine in this case) is
blowing out (exhaling) rather than inhaling.
(3) WOB - The total area inside the
loop formed by the two lines is what the computer analyzes to calculate
the regulator's total work of breathing - the amount of energy the
regulator requires to move each liter of air.
*Column Inches of Water
Compare Regulators and have a look at the Delta 4 Owners Manual
NOTE: The document
listed below is for reference only. For specific operational details,
consult the original paper documents included with your Regulator.
Regulator Comparison Chart
Click the Adobe logo above to download a free copy of Acrobat Reader
Diver adjustable inhalation effort
Most downstream demand valve regulators are calibrated during
manufacturing to a single, 'middle of the road' operation. Whether
finning up current at 100+ feet or merely snorkeling out to the dive
site, this factory adjustment may not be optimum for the wide variety
of demands we place on our equipment. A simple twist of the Delta 4's
adjustment knob enables complete control...set the inhalation
requirement to near zero when you need ultimate performance, or tune it
for greater resistance
as conditions or preferences change.
DVT (Dry Regulator Technology)
Ever wonder why they call it a "dust cap" and not a water cap? DVT
eliminates the possibility of moisture entering the first stage with a
simple, yet ingenious design. No hassle, no worries. What about
performance? DVT doesn't impact first stage performance even at 198
feet with just 200 psi in your tank.
The
result? An end to flooded regulators! Oceanic's exclusive DVT is
designed to automatically eliminate moisture intrusion and contaminants
from entering your breathing system.
Amazing. Simple. Patented. And by the way, only available on Oceanic Regulators.
Patented Dynamic Adjustment
A common objection to adjustable second stages is that divers can't
imagine themselves twisting and turning a knob as they descend and
ascend through the depths. If inhalation resistance is set near zero at
depth, your ascent would require you to manually increase resistance as
ambient water pressure is reduced to prevent free-flow. Taking another
stride beyond common second stage engineering, Oceanic designed a
patented DYNAMIC ADJUSTMENT feature into the heart of the Delta 4. This
mechanically balanced valve maintains a preferred breathing resistance
throughout the dive. Set it once and the Delta 4 automatically adjusts
to make breathing as easy at 100 feet as it is at 30 feet - with no
additional manual adjustment.
Adjustable Venturi System (A.V.S.)
The A.V.S. deflector vane found in the Delta 4 diverts the airflow from
the valve directly to the mouthpiece, producing smooth venturi-assisted
inhalation. With the addition of a user Adjustable Venturi System
(A.V.S.), in the form of a simple yet ingenious switch, full adjustment
control rests in the hands of the diver.
In-Line Swivel
The Delta 4 features an ergonomically designed in-line swivel for ultimate comfort.
Improved Adjustment Mechanisms
Both the Dynamic Adjustment Knob and A.V.S. Switch are designed to be
unobtrusive, yet easily manipulated even with the thickest gloves.
Surge Deflector
Our surge protector (the titanium, blue or yellow that you see in the
images above) reduces freeflow caused by surge or oncoming current.
Computer optimized design
Oceanic regulators are exclusively designed using the latest 3-D
computer modeling techniques. This allows us the ability to model and
test performance while still in the early stages of development. The
Delta 4's unique deflector vane and housing design diverts airflow from
the valve directly to the mouthpiece, producing smooth venturi-assisted
inhalation.
Lightweight
The Delta 4's housing is made from an ABS/Polycarbonate composite blend
of materials making the Delta 4 both extremely rugged and lightweight
(6.7 ounces) and nearly neutrally buoyant underwater, reducing jaw
fatigue on extended dives. The extremely light weight cover ring is
machined from a solid piece of aircraft aluminum, and then hard
anodized, utilizing a unique process to prevent corrosion.
Patented Orthodontic Mouthpiece
To further reduce jaw fatigue, the Delta 4 features a patented
Orthodontic Mouthpiece, designed to accommodate the natural overbite of
the human jaw.
Nitrox Compatibility
The Delta 4 is classified as being suitable for use with nitrox
breathing gas mixtures containing up to 40% oxygen by volume without
the need for special preparation, cleaning or component parts.
FDX-10 Balanced Diaphragm First Stage
Forged from marine-grade brass, the FDX-10 features optimized air paths
and angled hose ports for superior performance and comfort. A sealed
Balanced Diaphragm design, Enviro Kit and patented DRT TM (Dry
Regulator Technology) isolate all internal components from the
environment. 2 high pressure and 4 low pressure ports allow convenient
and comfortable hose routing.
