Triple flow meter block with oxygen bypass tap.
Date of manufacture:
The emergency oxygen tap provides uncalibrated high flows. This would be useful for filling the reservoir bag and for flushing the breathing system. This block would have been designed for input gas pressures of approximately 5 psi.Flow meter capacities are: Oxygen: 0 - 6 L/min, CO2: 0 - 2 L/min, N2O: 0 - ?20 L/min. Note also colour codes on taps: Oxygen : white, CO2: green and N2O: black