Kirby Morgan® 57

More Info

View Parts for this Helmet

Helmet no longer available; parts still available.

The Kirby Morgan® 57 features our SuperFlow® 450 Stainless Balanced Regulator.

The Kirby Morgan 57 Diving Helmet continues the tradition of innovation, providing the high quality and performance that divers have come to expect in a Kirby Morgan product. This helmet features our SuperFlow® 450 Stainless Balanced Regulator. It’s machined from a stainless steel casting for increased performance and reliability. This commercially rated regulator delivers all the breathing gas you need for the most demanding work underwater.

Specifications

This section includes detailed descriptions of the Kirby Morgan® 57, as well as important operational specifications.

Weight:
KM 57 – 31.6 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 equivalent may be used for helmet and mask components that are used with gas mixtures containing less than 50% oxygen.

Regulator:
The SuperFlow® 450 regulator is an exceptionally high performance regulator. It offers performance that exceeds that of the SuperFlow® 350. It meets 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.

Temperature Limitations:
Use at water temperatures below 33 °F (1 °C) requires use of hot water shroud (P/N 525-100) and hot water.

Note
The Hot Water Shroud (Part #525-100) in conjunction with hot water to the diver should be used whenever diving operations are conducted using HeO2 at water temperatures less than 60°F (15.56°C) for the comfort of the diver. KMDSI further recommends that the shroud be used in conjunction with hot water to the diver whenever diving operations are conducted using air or mixed gas, in waters colder than 36°F (2.22°C) to reduce the possibility of demand regulator icing.

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.

If diving where the water temperature is 36°F (2.22°C) or warmer but the topside air temperature is below freezing, (32°F (0°C) icing of the demand regulator is possible. To help eliminate the possibility of freezing on the surface, warm water should be run over the exterior of the demand regulator prior to water entry, if the hot water system is not used.

The umbilical assembly should be composed of good quality diving hose that meets industry standards. Generally, gas hose will be married to the communications wire, pneumofathometer hose, and strength member in a manner that will allow the strength member to receive all the strain. There are also good quality umbilicals available that are assembled at the factory using a twisted method which does not require marrying. Regardless of the system used, the umbilical is the diver’s life line and should always be of excellent quality and maintained carefully.