Kirby Morgan KM 47 Diving Helmet

Discontinued, read more here:

Per Kirby Morgan Bulletin #11 of 2020. October 14, 2020 - This product has been discontinued

The Kirby Morgan 47 Features The High Performance, All Stainless Steel REX Regulator. The Kirby Morgan 47 consists of two major assemblies: like other "metal bottom" helmets, the helmet shell/helmet ring assembly and the neck dam/neck ring assembly. The chrome plated, machined brass helmet ring houses the latch catches and provides protection for the bottom end of the helmet. An internal, adjustable chin strap, along with the adjustable neck pad on the locking collar, gives the diver a secure, custom fit.

Features:

Air Train

The air train diffuses incoming breathing air/gas onto the face port/lens to defog and ventilate.

Defogging Steady Flow Valve

Provides an additional flow of gas into the helmet for ventilation and defogging.

Emergency (EGS) Valve

Supplies backup breathing gas to the diver.

Fiberglass and Carbon Fiber Reinforced Shell.

Kirby Morgan has over 50 years experience in composite laminations. The helmet shell is hand laid up glass fiber reinforced thermal setting polyester (fiberglass) with carbon fiber reinforcement at key points for added durability. It is light and highly impact resistant, and provides a heat/cold barrier as well as being an excellent electrical nonconductor.
Gas Supply Non-Return Valve

Commercial Rated, It prevents loss of gas pressure in the event of umbilical damage.

Nose Block Device

Nose Block Device allows the diver to block the nose to equalize ears.

Rapid Change Modular Communications Systems

Because the module is easily removed the helmet, repair or replacement of communications parts is quick and trouble free. It is available with either a male waterproof connector or a bare wire post connection.

REX Regulator

Full adjustment balanced piston is a breakthrough design that exceeds all requirements of all government or other testing agencies. It has the best work-of-breathing performance when compared to ANY other commercial diving regulator.
Side & Top Weights

Brings unsurpassed balance to the helmet while providing for accessory mounting areas.

Side Block

Multi use side block has additional ports built in to provide controlled air flow, if needed.

Silicone Oral Nasal Mask

Made of a superior silicone material which is hypo-allergenic and has a longer work life than latex.

Whisker Wings

Bubble deflecting Whisker wings keep bubbles further from face port and ears, improving visibility and decreasing internal noise.

Weight: KM 47 - 33.56 pounds
Helmet Shell: Fiberglass, polyester resin, polyester gel coat, and carbon fibers
Control Knobs: Polyurethane
Face Port/Lens: Scratch Resistant Polycarbonate
Neck Dam: Neoprene. Optional latex neck dam available
O-Rings: Buna-N
Head Cushion: Nylon bag filled with #4 Polyester foam
Recommended Lubricants: All helmets and masks are lubricated at the factory with Christo-Lube. Kirby Morgan recommends Christo-Lube or Tribolube for all gas train components. Dow Corning 111 Silicone or equivelent may be used for helmet and mask components that are used with gas mixtures containing less than 50% oxygen.
Regulator: The Rex regulator on the Kirby Morgan 47 offers high performance. The regulator has been tested at Dive Lab at Panama City, Florida. It meets or exceeds all current U.S. Navy and European diving standards.
Cage Code: The cage code for identifying KMDSI products for U.S. government purposes is 58366.
CR Standards: These helmets meet or exceed all standards established by Dive Lab of Panama City, Florida, and are CR (Commercially Rated) marked.
Notes:
The minimum operating temperature recommended for this helmet is 37 degrees F, only in regards to regulator performance. At the time of this writing, no hot water shroud is available for this helmet for heating the diver's breathing gas.
Without a hot water shroud, the diver may be subject to hypothermia due to cold gas inspiration temperatures. Kirby Morgan makes no physiological recommendations regarding minimum safe operating temperatures for divers using this helmet.
Usually the greatest danger of demand regulator icing will be encountered on deck when the surrounding air temperature is less than 32°F (0°C). This effect is primarily due to the refrigeration effect of breathing air pressure reduction, and the addition of moisture from the diver's exhalation coming in contact with the topside air temperature.
Recommended overbottom (OB)gas supply pressure for best performance at depths are calculated by the formula (fsw x 0.445+14.7) + recommended p.s.i. g.
Warning: Before attempting any diving in any type of contaminated water, a complete diving and topside course in hazardous materials emergencies should be completed. The divers and the topside team must be properly trained and have the proper safety equipment. All helmets and suits can leak water under certain conditions. Divers should use extreme caution when diving in contaminated waters.

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