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The usual meaning of diving helmet is a piece of diving equipment that encases the user's head and delivers breathing gas to the diver, but the term "diving helmet", or "cave diving helmet" may also refer to a safety helmet like a climbing helmet or caving helmet that covers the top and back of the head, but is not sealed. These may be worn ...
Demand helmet; DESCO air hat; Diffuser (breathing set part) Dive/surface valve; Diver's umbilical; Diving cylinder; Diving regulator; Downstream scuba manifold; Draeger DM20 oxygen rebreather system; Dräger DM20 oxygen rebreather system; Dräger DM40 mixed gas rebreather system; Dräger Modell 1915 Bubikopf helmet; Dry suit inflation hose
The main focus was on the US Navy Mk V helmet, a typical free-flow copper helmet used with standard diving dress, but shallow water diving equipment is also covered. [1] [4] 1952 - Diving Manual, document identity NAVSHIPS 250–880, also published by the Navy Department, Bureau of Ships, to supersede the 1943 manual. It has nine parts: History ...
Lightweight demand helmets are rigid structures which fully enclose the head of the diver and supply breathing gas "on demand". The flow of gas from the supply line is activated by inhalation reducing the pressure in the helmet to slightly below ambient, and a diaphragm in the demand valve senses this pressure difference and moves a lever to open the valve to allow breathing gas to flow into ...
A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
Alternative term for a viewport of a standard diving helmet. light head. See: Dive light#Canister light. The part of a canister light (q.v.) which emits light, and is held in the hand or mounted on the helmet. [62] lightweight helmet. Main article: Diving helmet#Lightweight demand helmets. Low volume, close fitting diving helmet, usually with ...
Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications.
Diving equipment may be exposed to contamination in use and when this happens it must be decontaminated This is a particular issue for hazmat diving, but incidental contamination can occur in other environments. Personal diving equipment shared by more than one user requires disinfection before use.