Home › Halcyon Regulator Systems Breathing is one of the most important things you do while underwater - you should not accept “good enough” when making such an important choice. That is why we have chosen high performance components while designing regulators for the ultimate diving experience. Halcyon regulators are used on the longest Scuba dives ever accomplished and in some of the harshest conditions such as the deep wrecks of the Baltic Sea and in the high altitude caves of the Russian interior. First Stage Regulators Second Stage Regulators EXTREME CONDITIONS DIVING: Extreme cold water diving conditions pose a unique challenge to divers and equipment alike. Extreme temperatures can cause regulator “freezing” during which a regulator might experience a free-flow. While this is not an imminent threat (because air continues to flow from the second stage) Halcyon systems greatly limit the risk of this occurrence. All Halcyon regulator systems are CE approved for 4300psi cold water diving; in fact we even exceed the CE cold water requirements. To further reduce regulator freezing Halcyon’s H-50D uses a dry ambient pressure chamber. Meanwhile Halcyon second stages feature precision molded carbon fiber and technopolymer valve housing and components which also contribute to their lightweight features and corrosion resistance. Single Tank Systems Double Tank Systems SPGs Halcyon Regulator Service First Stage Regulators Second Stage Regulators First Stage Regulators › Main menu Recreational Diving Technical Diving Halcyon In Action Halcyon Dealers The Halcyon Story BC Systems Halcyon Regulator Systems First Stage Regulators Second Stage Regulators Surface Markers and Lift Devices Lighting Systems Guideline Devices Dry Suit Accessories Dive Essentials Halcyon Dive Vehicles Logowear RB80 Rebreather Halcyon Frequently Asked Questions Halcyon Product Manuals Halcyon Videos Technical Services The Halcyon Warranty Halcyon Product Recall Information The Halcyon Story Contact Halcyon Dealers & Distributors Dealers Distributors Underwater images courtesy of David Rhea ©2008-2014, Halcyon Dive Systems Google+