The fully tested and certified KMB 28 Band Mask® may be used in mixed gas diving as well as shallow water air diving.
The SuperFlow® adjustable demand regulator provide low inhalation resistance and high gas flow letting the diver breathe easier and work harder. This mask comes standard with the large tube SuperFlow® 350 regulator.
The Side Block Assembly of both the KMB 18 and 28 receives the umbilical over the shoulder in the B configuration. They both come standard with the Tri-Valve® exhaust system, and the new Band Mask® BandKeepers®
The Tri-Valve® Exhaust System has less breathing resistance than the older single valve exhaust. It retrofits to all previous Kirby Morgan Band Masks®. The Band Mask® BandKeepers®, coupled with the redesigned hood, not only prevent any separation of the hood from the mask, but also make it impossible for the bands to separate from the mask.
The communications connections can be either a male waterproof “plug in” type or bare wire posts.The KMB 28 Band Mask® is very similar to the KMB 18. Many parts on the KMB 18B are interchangeable with the KMB 28. The major difference between the 18 and 28 is the material of the mask frame. The KMB 18 has a hand laid fiberglass frame (yellow) while the KMB 2B frame is an extremely durable injection molded plastic (black). The relative ease of production of the KMB 28 frame allows for a lower cost and quicker delivery of this mask. Other differences include: 1) The main exhaust body of the KMB 28 is part of the frame itself and uses a #545-041 main exhaust cover 2) no comfort insert is required on the “28” 3) the face ports for the 18 and the 28 differ slightly in size.
The Band Mask® 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 15333-1 (Class C). It is fully CE marked with demand regulator SuperFlow® 350 and oral nasals P/N 510-690 and P/N 510-747 (now standard).
KMB 18 – 13.63 pounds
KMB 28 – 12.73 pounds
KMB-18: Fiberglass, polyester resin, polyester gel coat, and carbon fibers Mask Frame KMB-28: Xenoy thermoplastic
Scratch Resistant Polycarbonate
Christo-Lube®, Dow Corning® MS4 Silicone Lubricant. Krytox® and Halocarbon® are also acceptable.
SuperFlow® 350 Performance. The SuperFlow® 350 regulator on the Kirby Morgan 18 & 28 masks 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.
The cage code for identifying KMDSI products for U.S. government purposes is 58366.
These helmets meet or exceed all standards established by Dive Lab of Panama City, Florida, and are CR (Commercially Rated) marked.
Both the KMB 18 and 28 are CE Approved.
Use at water temperatures below 33 °F (1 °C) requires use of hot water shroud (P/N 525-100) and hot water.
Operational Specifications & Limitations:
Umbilical minimum I.D. 3/8” (9.5 mm) of not more than two sections, total length not to exceed 600 feet (183m). This mask meets or exceeds all requirements of NPD, Health and Safety, (U.K.), United States Navy, ADCI United States and is CR rated by Dive Lab, Panama City, Fla., USA. 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.