Kirby Morgan SuperLite 27

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Product Description


Constant research and monitoring of the industry’s needs have helped KMDSI develop products that make the commercial diver’s job safer, easier, and more productive. Following in this tradition of helmet design is the fully tested Kirby Morgan SuperLite® 27 diving helmet .

The SuperFlow® 350 regulator used on the SuperLite® 27 provides outstanding performance. It features a diver adjustable system so that the regulator can be “tuned” during the dive according to your workload. This adjustment also allows you to set the regulator as the supply pressure varies, which is especially important when working with a low pressure compressor.

The Tri-Valve Exhaust System helps to keep the breathing system dry under all conditions without increasing the breathing resistance of the helmet. In addition, the helmet is also equipped with a separate Water Dump Valve which is mounted on the left side.

The helmet neck ring design, first produced in 1991, allows for evenly distributed weighting of the helmet. The chrome plated machined brass helmet ring houses the latch catches and provides protection for the bottom end of the helmet. The diver is also provided with an externally adjustable chin support. This support, along with the adjustable neck pad on the locking collar, gives the diver a comfortable, secure, custom fit.

The SuperLite® 27 is Commercially Rated™ and has been tested and certified to meet or exceed all requirements for all governing agencies. It is certified for use in all diving operations world wide.

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 for added durability. It is light and highly impact resistant, and provides a heat/cold barrier as well as being an excellent electrical nonconductor.

Defogging Steady Flow Valve: Provides additional flow of gas into the helmet for ventilation and defogging.

Emergency (EGS) Valve: Supplies backup breathing gas to the diver.

Gas Supply Non-Return Valve: Commercially Rated™. Prevents loss of gas pressure in the event of umbilical damage.

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

Rapid Change Modular Communication System: The module is easily removable. This allows for quick and trouble free repair and replacement. It is available with either a male waterproof connector or a bare wire post connection.

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

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.

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.

Head Cushion: Gives the helmet a secure, well balanced feel as well as excellent thermal protection during long work periods.

Air Train: Diffuses incoming breathing air/gas onto the face plate to defog the lens.

Silicone Oral Nasal Mask: Made of a superior silicone material which is hypo-allergenic and has a longer work life than latex.

Nose Block Device: Allows the diver to block the nose to equalize ears.

SuperFlow® 350: This all metal, fully adjustable, Commercial Rated™ demand regulator provides easy breathing and excellent performance with low pressure compressors.

Tri Valve Exhaust Whisker: Less breathing resistance than the older single valve exhaustwhile providing an extremely dry hat. The Tri-Valve Exhaust is made of a chemical resistant compound.

Internal Adjustable Chin Strap: The adjustable chin support, along with the adjustable neck pad on the locking collar gives the diver a comfortable, secure fit.

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.

Weight: 27 pounds

Helmet Shell: Fiberglass, polyester resin, polyester gel coat, and carbon fibers

Control Knobs: Polyurathane

Lens: Clear polycarbonate

Neck Dam: Neoprene (Size Medium). See Accessories tab for other sizes and latex material.

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. KMDSI recommends Dow Corning 111 Silicone for all non-gas train components.

Regulator Performance
SuperFlow® 350 Performance: The SuperFlow® 350 regulator on the Kirby Morgan 27 offers high performance. The regulator has been tested at Dive Lab at Panama City, Florida. 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 exceeds all standards established by Dive Lab of Panama City, Florida, and are CR (Commercially Rated) marked.

CE Approved: The SL 27 helmet is CE Approved.

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

The Hot Water Shroud (P/N DSI 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 divers 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.

Only equipment certified and tested according to EN 250/E DIN 58 642 may be used with the SL 27 helmet when conducting diving operations in European EC compliant countries.

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 umbilical 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.

Spare Parts Kits


Neck Dams

Neck Rings Ass’y

Head Cushions


Part # N/A

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  • Helmet Type: Fiberglass
  • Regulator

    The 455 Stainless Steel, Balanced Regulator is now available as an option from the factory. There is no price increase for this option at this time.
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