Kirby Morgan KM77 500-091 Commercial Diving Helmet with Male Waterproof Connector
Kirby Morgan's 77 Commercial Diving Helmet with Male Waterproof Connector is an all-metal commercial diving helmet that features an all stainless steel version of the Kirby Morgan REX® regulator, as well as a stainless steel sideblock, helmet ring, bent tube, handle, and other key components.
Restrictions / Notifications
- Reseller Restriction
Due to vendor restrictions, this item cannot be sold to a reseller. If you are a reseller, please call us at 760-208-6500 or email sales@amronintl.com for more details.
Features
Specifications
Kirby Morgan 77 Commercial Diving Helmet with Male Waterproof Connector - P/N: 500-091 Includes
Kirby Morgan 77 Helmet P/N: 500-090 / 500-091 Blow Apart
NotesThe minimum operating temperature recommended for the Kirby Morgan 77 Commercial Diving Helmet is 37 degrees F, only in regard to regulator performance. At the time of this writing, no hot water shroud is available for the Kirby Morgan 77 Commercial Diving Helmet for heating the commercial diver’s breathing gas.
Without a Kirby Morgan Hot Water Shroud, the commercial diver may be subject to hypothermia due to cold gas inspiration temperatures. Kirby Morgan makes no physiological recommendations regarding minimum safe operating temperatures for commercial divers using the Kirby Morgan 77 Commercial Diving 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.
Images of Kirby Morgan Helmets, Masks, or logos are registered trademarks of Kirby Morgan Dive Systems, Inc. Used with permission. |
The Kirby Morgan 77 Commercial Diver's Helmet is a stainless steel commercial diving helmet with a rugged outer shell. The KM 77 features an all stainless version of the Kirby Morgan REX® Regulator, as well as a stainless steel side block, helmet ring, bent tube, handle, and other key components. The Kirby Morgan Rex Quad Valve® Exhaust System is standard on this commercial diving helmet.
The advanced regulator pod on the Kirby Morgan 77 will allow future versions of the Kirby Morgan 77 to be outfitted with other Kirby Morgan regulators, including the Kirby Morgan SuperFlow 350 Regulator or the all stainless steel Kirby Morgan SuperFlow 450 Regulator. The pod makes it possible to customize the Kirby Morgan 77 Commercial Diving Helmet with the diving regulator you want as job requirements change. The KM 77 does not require any refinishing if the surface is scratched or gouged, only comes in one color, and it eliminates threaded inserts for securing the port retainer to the helmet shell.
Warning: Before attempting any diving in any type of contaminated water, a complete commercial diving and topside course in hazardous materials emergencies should be completed. The commercial divers and the topside team must be properly trained and have the proper safety equipment. All commercial diving helmets and suits can leak water under certain conditions. Commercial divers should use extreme caution when diving in contaminated waters.
FAQ's
The threads at the end of the emergency valve are 9/16-18. A standard scuba hose, female (9/16 in.-18) will attach to them.
Kirby Morgan would like to assure all stainless steel helmet owners, that the helmet shells are not actually rusting. All of these helmet shells and other main components, are cast and machined from a highly corrosion resistant grade of 316L stainless steel. The investment casting process can produce a very good finish, but this still requires more processing to be acceptable. Each helmet shell is initially hand finished, then, it is processed to a very smooth surface using specialized friction finishing equipment. Even after all this processing, these smooth surfaces will still have small surface porosity that can trap foreign matter, some of which can “rust”. This is what will make the surfaces appear to be rusting. This foreign matter that may be trapped, needs to be cleaned away, and the surfaces need to be protected. Basic cleaning and protection should be performed on a regular basis and may need to be performed more often depending on what type of environment the helmets are used in.
NOTE: This “Rusting” issue can also be seen on Fiberglass helmet shells and chrome plated brass parts. It is what is stuck to those surfaces that is “rusting”. Not the fiberglass or chrome.
Cleaning Procedures for the Stainless Steel Helmet
Thoroughly clean the components with a cleaning soap such as Simple Green. A soft scrubbing tool can help to remove excess materials. Dry the components and wipe completely with Isopropyl alcohol and allow evaporating. Using a kitchen sponge with an abrasive side. Wet and apply hand soap that contains a slight abrasive (LAVA hand soap works very well, or Go-Jo Pumice, citric hand soap), and simply rub onto the affected area of the helmet shell. The unwanted stains will easily be removed.
NEVER USE STEEL WOOL TO PERFORM THIS TASK.
It will deeply imbed iron particles into the stainless and may cause severe rusting to the component.
Citric acid or diluted vinegar can be used to passivate stainless steel and remove any light rust. A lemon half works well as a scrubbing tool, and at the same time provides the citric acid to help eliminate small surface particles of rust. Allow enough liquid to deposit on all affected surfaces and allow it to settle for at least 30 minutes. Rinse and re-apply as needed. Rinse again and finish wipe with the Isopropyl alcohol to allow it to dry completely.
Apply at least 2 coats of a good quality paste wax. This will help seal surface porosity to prevent foreign matter from being trapped, which may then rust.
It is best to clean as much of the helmet surfaces as possible, rather than cleaning only affected areas, as this will help prevent any future issues. A basic cleaning and waxing procedure should be performed as part of a routine cleaning regiment.
Kirby Morgan suggests the use of lemon juice/lemons, or vinegar for the source of acid. These types of acid will help dissolve certain stains, rust and certain residue buildup such as hard water and mineral deposits. Because they are natural and non-toxic, Kirby Morgan highly recommends them for this procedure.
NOTE: All new stainless helmet shells are electrochemical cleaned (electro polished) and friction polished to a very smooth exterior surface finish. If so desired, the surface can be brought to a higher luster using basic polishing techniques, (i.e., polishing compounds and light buffing techniques).
Amron International Customer Service
We respond to most inquiries within 24 hours, Monday – Friday, excluding holidays.Phone
Toll-Free: (877) 462-6700Local & International: (760) 208-6500
Fax: (760) 599-3857
Hours of Operation
Customer ServiceMonday - Friday, 8am – 5pm Pacific Time Zone
Warehouse/Will Call Orders
Monday – Friday, 9am – 3:30pm Pacific Time Zone
