|The Kirby Morgan® Commercial Diving Helmet 47 has a new and improved breathing system, oral nasal mask, and water ejection system. The Kirby Morgan® Commercial Diving Helmet 47 comes with the new Rex® Demand Valve (patents pending). This new valve has an adjustable balanced piston, which is a breakthrough design that exceeds the requirements of all government and other testing agencies. It has the best “work-of-breathing” performance when compared to ANY other commercial diving helmet. The Kirby Morgan® Commercial Diving Helmet 47 has been tested and meets or exceeds European CE requirements and is fully commercially rated.
The Kirby Morgan® Commercial Diving Helmet 47 consists of two major assemblies: the commercial diving helmet shell/helmet ring assembly and the neck dam/neck ring assembly. The chrome plated, machined brass helmet ring houses the latch catches and provides protection for the bottom end of the commercial diving helmet. The helmet ring assembly also provides the foundation for an externally adjustable chin support. This support, along with the adjustable neck pad on the locking collar, gives the commercial diver a secure, custom fit. The balance and comfort of this commercial diving helmet is unsurpassed, even when the commercial diver must work for long periods in the face down position.
The Kirby Morgan® Commercial Diving Helmet 47 also features a quick change communications module, available with either bare wire posts or a Marsh Marine style waterproof connector, and allows for easy, efficient maintenance of the commercial diving helmet’s communications. The Kirby Morgan® Commercial Diving Helmet 47 is configured to receive the umbilical over the shoulder in the “B” configuration.
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.
|The Kirby Morgan® Commercial Diving Helmet 47 has been tested and conforms to the performance requirements as set forth in Annex II of Directive 89/686/EEC and, as far as applicable, the EN 250:2000, EN 250/A1:2006 and EN 15333-1:2008 (class B). It is fully CE marked with demand valve REX®.
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 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 this 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 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.