RD1 - mod 1 Oxygen Distribution Assembly
This oxygen side assembly can be fit to the RD1 rebreather as part of a mCCR conversion. As pictured, a precision needle valve is used to meter oxygen into the unit, with a manual bypass. The MAV is supplied to fail ‘closed’, mitigating leakage risks of conventional valves.
The pictured configuration is only one of multiple options to build out a CCR from the RD1 platform. You should consult with your rebreather instructor as to the assembly most appropriate for your diving requirements and as is consistent with local best practices. CCR conversions can be assembled with needle valves. CMF orifice, and solenoids from a variety of suppliers.