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ABV-1* Ambient Breathing Valve |
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The ABV *-1 Ambient Breathing Valve allows the user to breathe
ambient air at the surface, conserving your tank air. It is simple
to use and its low profile keeps it out of the way.
To use the device, while on the surface simply rotate the
valve counterclockwise. The one way valve will open and allow
air into the FFM. |
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The one way valve located on the inside of the FFM ensures
that your exhaled air does not go back out the valve. Your exhaled
air is sent out through the second stage regulator ensuring you
do not get a Co2 "building" in the FFM.(build-up)
The valve also is forced closed when diving. The over pressure
in the FFM assures that. If you forget to close the valve before
diving, the valve disc will help keep water out. |
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When the valve is closed, it has a low profile. |
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Even when the valve is fully open, the profile changes slightly
. When the valve is open the diver breathes normally. He will
notice little effort in breathing while he conserves his tank
air. |
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The ABV*-1 is a must for all Search & Rescue Teams, Military
Divers and Divers who spend a lot of the time in the water!
Order one today - with FFM purchase: ABV*-1 (910271-001) or
separately with the visor ABV-2 (910271-002) or send us your
visor and we can install one (installation fee $25.00 + ABV*-1
valve)(Note: It is recommended that a Certified Interspiro Service
Technician install the visor). |
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The OTS ABV draws air on the surface in such a way that
it causes the air flow to act normally as if the regulator was
working. This ensures the air flow sweeps the visor keeping the
visor defogged. You can see the diver at right in a cold environment
using an OTS ABV and AGA full face mask. Notice the visor is
defogged. Notice the low profile of the OTS ABV. Also, the OTS
ABV operates by rotating the valve instead of having to pull
it out. When you have to pull on the ABV to open it, you take
a chance on loosening the seal causing air to escape. |
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The same diver at the same dive location is using the GILL,
Interspiro device. The air flows in and out through the GILL.
This does not allow the proper flow of air causing the mask to
fog on the surface. You will also notice the size of the GILL.
It is much larger than the OTS ABV. the GILL is operated by pulling
the GILL in or out (out being open). When open, the size increases
by about 1/4". |
* ABV is a registered trade mark
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