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Medical Gas Supply System
Modular manifold headers for gas cylinders can be
connected to the Manifold Changeover System to
configure its gas supply capacity.
The Manifold Changeover System is connected to the
pipeline distribution system downstream of the primary
supply system when used as backup. It can be isolated
from the pipeline distribution system by the lockable
isolation valve supplied. When used as a backup supply
this valve should be left open during normal operation,
so the unit will automatically supply the pipeline
distribution system with medical gas in the event of the
primary system failing to supply.
When used as a backup manifold system the line
pressure should be set slightly lower than the primary
supply pressure to prevent the unit from supplying gas
during normal operation of the primary supply system.
1.2
1
Stage Pressure Regulator.
st
For safe operation regarding performance, mechanical
strength, resistance to ignition in pure high pressure
oxygen supply and cleanliness, the device fully conforms
to ISO 10524-2. A pressure relief valve connected to the
regulator protects the downstream pressure and is set a
2.4 MPa (350 psi).
1.3
2
Stage Pressure Regulator.
nd
For safe operation regarding performance, mechanical
strength and cleanness the device fully conforms to
ISO 10524-2, the second stage pressure regulator is
a manually set diaphragm type and is used to set the
system pressure to suit typical nominal values for 55 psi,
100 psi and 180 psi pipeline systems.
NOTE - To maximise performance each 2
pressure regulator is fitted with internal springs specific
to match the nominal line pressure.
1.4
Line Pressure Relief Valve.
The line pressure relief valves are preset to the values
shown in Table 1 for the different line distribution
pressures.
Table 1: Line Pressure Relief Valve Set Points.
Relief Valve Set Point
0.52 MPa (75 psi)
1.03 MPa (150 psi)
1.72 MPa (250 psi)
The line pressure relief valve is fitted between the
pressure regulator and the isolation valve, thus
protecting the delivery system from over pressurisation
by discharging to atmosphere in the event of regulator
failure.
stage
nd
Nominal Distribution
Pressure
0.38 MPa (55 psi)
0.69 MPa (100 psi)
1.24 MPa (180 psi)
1.5
Modular Header for Cylinder
Connection.
The Medical Gas Supply System is compatible with
BeaconMedaes standard modular headers supplied up
to 2x15 cylinder connections.
1.6
Halogen Free Components.
The Medical Gas Supply System contains NO
HALOGENATED polymers located in the gas stream
that may experience pressurised oxygen in excess of
3 MPa in normal operation or single fault condition,
as recommended for safe practise of the medical gas
pipeline system.
9
4109992459.00
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