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The CTEK 28B Band Mask offers a robust and cost-effective solution for commercial divers. While functionally similar to the CTEK 18B, the 28B distinguishes itself with a high-strength injection molded plastic frame (Xenoy), making it lighter and quicker to produce without sacrificing durability. Designed for both mixed gas and shallow water air diving, it integrates the high-performance SuperFlow® 350 regulator and the Tri-Valve® exhaust system. The “B” configuration routes the umbilical over the shoulder for optimal line management. With secure BandKeepers® and a non-modular communications system, the 28B is a reliable workhorse for professional diving.
Technical Specifications
Weight: 12.73 lbs (Lighter than the 18B’s 13.63 lbs).
Frame Material: Xenoy thermoplastic (Injection molded plastic).
Regulator: SuperFlow® 350 (All Metal, Fully Adjustable).
Lens: Clear polycarbonate.
Hood: Neoprene.
Control Knobs: Polyurethane.
O-Rings: Buna-N.
Certifications: CE Approved; CR (Commercially Rated) marked.
Temperature Limits: Water temperatures below 33°F (1°C) require a Hot Water Shroud.
Operational Depth: Meets requirements for NPD Health and Safety (U.K.) and US Navy standards.
Standard Features & Configuration
Breathing System: SuperFlow® 350 Regulator; Tri-Valve® Exhaust System; Air Train (defogger).
Valves: Defogging Steady Flow Valve; Emergency (EGS) Valve; Gas Supply Non-Return Valve (preventing “squeeze”).
Harness & Hood: Head Harness (Spider) with adjustment holes; Stainless Steel Bands; BandKeepers®.
Communications: Non-modular (Choice of male waterproof connector or bare wire posts).
Comfort: Silicone Oral Nasal Mask; Nose Block Device; Whisker Wings.
Umbilical Config: Side Block Assembly “B” (Over the shoulder).
Key Features
Durable Xenoy Construction: Features an extremely durable injection molded plastic (Xenoy thermoplastic) frame (black), offering the same reliability as fiberglass models but at a lower cost and lighter weight.
Mixed Gas Certified: Fully tested and certified for use in mixed gas commercial diving as well as shallow water air diving.
SuperFlow® 350 Regulator: Comes standard with this all-metal, fully adjustable regulator, providing low inhalation resistance and high gas flow for easy breathing under heavy work rates.
Enhanced Security: Equipped with BandKeepers® and a redesigned hood, making it impossible for the bands to separate from the mask during operation.
Tri-Valve® Exhaust: Features an advanced exhaust system with less breathing resistance than older single-valve models, ensuring a drier mask.
Integrated Design: Unlike the 18B, the main exhaust body of the 28B is part of the frame itself, and the mask requires no comfort insert, streamlining maintenance.
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