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ENVIRONMENTAL PROTECTION KIT
By function of design, the inner components of Oceanic diaphragm type regulator first
stages (i.e., CDx, DX4) are isolated from the ambient environment. However, the outer
side of the diaphragm and the diaphragm spring, located inside the cavity at the hex
opening end, will be subjected to environmental conditions.
Oceanic recommends installation of an Environmental Kit on diaphragm type First Stages
(i.e., CDx) subjected to environmental conditions in which debris, or sediment, or ice, or
salt crystals might form in the spring cavity. The kit is a unique dry seal system that uses no
messy grease or chemicals.
Most DX4 first stages are shipped from the factory with the Environmental Kit installed. If
your DX4 (or other model) is not configured with an Environmental Kit, one can easily be
installed by your Authorized Oceanic Dealer.
WARNING: Installation of an Environmental Kit must be performed by an
Authorized Oceanic Dealer. Improper installation may cause first stage fail-
ure while underwater resulting in serious injury or death.
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