KM 77 HelmetFor the diver who wants an all metal helmet, the new stainless steel Kirby Morgan® 77 helmet is the way to go… It features an all stainless version of our REX® regulator, as well as a stainless sideblock, helmet ring, bent tube, handle, and other key components. The Rex Quad Valve® Exhaust System is standard on this helmet. The advanced regulator pod on this helmet will allow future versions of the Kirby Morgan 77 to be outfitted with other Kirby Morgan regulators, including the SuperFlow 350 or the all stainless steel SuperFlow 450. The pod makes it possible to customize the helmet with the regulator you want as job requirements change.
The advantages of this stainless steel helmet include the following:
- Rugged helmet shell and other components
- No refinishing required if the surface is scratched or gouged
- Only one finish (color) is available
- Elimination of threaded inserts for securing port retainer to helmet shell
Removable Grip and handle. Handle can be removed without breaking seals, making it quick and easy to attach accessories.
B) Stainless Steel Shell
After x-ray insection, each 316 stainless steel shell, is precision CNC machined to tight tolerances, to ensure proper fit to all other mating parts. The shell is durable and easy to maintain. Easily cleaned using a Scotch Brite® or similar type cleaning pad .
C) Defogging Steady Flow Valve
Provides an additional flow of gas into the helmet for ventilation and defogging.
D) Emergency (EGS) Valve
Supplies backup breathing gas to the diver.
E) Side Block
Use side block has additional ports built in to provide controlled air flow, if needed.
F) Rapid Change Modular
Because the module is easily removed from 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.
Deflecting whiskers keep bubbles further from face port and ears, improving visibility and decreasing internal noise.
H) Pull Strap
The strap has been improved with the addition of a stainless steel “D” ring. This makes for easier removal. It also allows the assembly to easily be hung for drying.
I) Positive-Lock™ Latch System
This latching system, developed by Kirby Morgan in 1992, consists of two sealed Positive-Lock™ pull pins which are pulled forward to release the neck collar and neck dam locking system. Even when the latches are released, the O-ring sealed neck dam maintains a positive seal and will not allow the seal to be broken until the collar actually clears the diver’s shoulders, thus helping to prevent any flooding of the helmet.
J) Head Cushion
The Head Cushion gives the helmet a secure, well balanced feel as well as excellent thermal protection during long work periods.
K) Adjustable Neck Pad
The helmet attached yoke system has an adjustable neck pad which is made from a scuff resistant elastomer. In conjunction with the spring activated front neck dam ring lock, it provides protection for the bottom of the Helmet L) Rex® Demand Valve (patents pending), with it’s 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 helmet. This is our highest performing regulator, with the lowest breathing resistance and best work of breathing.
L) Silicone Oral Nasal Mask
Made of a superior silicone material which is hypo-allergenic and has a longer work life than latex.
M) Air Train
Diffuses the incoming breathing air/gas onto the face plate to defog the lens.
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.
How To: Conversion Kit, 455 Regulator for KM 77 | Part 1
Step-by-step guide explains how to convert your KM 77 to a KM 97 with the 455 Balanced Regulator
Visit the 525-769 Conversion Kit, 455 Regulator For KM 77:
How To: Conversion Kit, 455 Regulator for KM 77 | Part 2