Product Specifications: Kirby Morgan 77

This section includes detailed decsriptions of the Kirby Morgan 77, as well as important operational specifications. With the exception of the regulators, all parts are interchangeable.

Weight:

KM 77 - 30.96 pounds

Helmet Shell:

Stainless Steel

Control Knobs:

Polyurathane

Lens:

Clear polycarbonate

Neck Dam:

Neoprene. Optional latex neck dam available.

O-Rings:

Buna-N

Head Cushion:

Nylon bag filled with #4 Polyester foam

Recommended Lubricants:

Dow Corning MS4 Silicone Lubricant. Krytox® and Halocarbon® are also acceptable.

Regulator Performance

Rex® Performance

The Rex regulator on the Kirby Morgan 77 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 exceeds all standards established by Dive Lab of Panama City, Florida, and are CR (Commercially Rated) marked.

CE Approved:

The KM 77 helmet is CE Approved.

NOTE

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 divers 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.

Products

KM 77

KM 57

KM 47

KM 37

SL 27

SL 17B

FAQ

500-090

KM 77 Helmet w/Posts

500-091

KM 77 Helmet w/MWP

Manual & Blowaparts Notices KM-77 Accessories Kits & Neck Dams