3303 - Oxygen            3304 - Nitrous Oxide
3305 - Air                    3306 - V acuum
The outlet points from which gases & vacuum are drawn are of self sealing typ e and hav e non-interchangeable outlet fittings. The supply is established simply by inserting the appropriate safet y key plug into the orifice of the outlet point and pressing it home until it locks in position. To break the connection, the milled collar round the orifice is rotated a few degrees to the right, when the safet y key plug is automatically ejected and the gas flow is cut off.

3307 - Oxygen            3308 - Nitrous Oxide
3309 - Air                    3310 - V acuum
These are non-interchangeable like the self sealing valves and thus eliminate the possibility of errors in making connections.

3316
To keep the cov ers in position on the ‘S’ bracket.

3315
For connecting the down drop pipes to self sealing valves.

3311 - Oxygen             3312 - Nitrous Oxide
3313 - Air                     3314 - V acuum
Coloured coded text for respective self sealing valves to safe guard against the possibility of administering the wrong gas.

3317 - 10mm OD          3318 - 16mm OD           3319 - 28mm OD
For surface mounting pipes of different sizes, firmly on the wall.

3324 - 0 - 250kg/cm2 High Pressure, Oxygen, Dia 100mm
3326 - 0 - 10kg/cm2 Low Pressure, Oxygen, Dia 100mm
3350 - Pipeline Gas Failure Alarm

The contact gauge has electrical contacts. It should be connected to the pipeline gas failure alarm which has two signal lights, a buzzer & an “ON/OFF” switch. When the contact gauge is connected to the power supply and the ON/OFF switch of the alarm is switched “ON”, green light will show indicating that the electrical supply serving the contact gauge & alarm are working correctly. The green light should show at all times when the pipeline is in use. The other signal light viz red is a warning light which automatically shows & the buzzer rings when the pressure in the running cylinder has fallen to a determined value. Put the switch to “OFF” position after which the reserve cylinder should be brought into operation
promptly to ensure continuity of supply.