4.4 Gas Pressures
USA/ UK
Canada/Japan
Pipeline supplies: 340 kPa 400 kPa
(50 psig) (58 psig)
Cylinder supplies:
Reduced pressure from regulator 310 kPa +15 kPa / -35 kPa 380 kPa +15 kPa / -35 kPa
(at 5 L/min flow) (45 psig +2 psig / -5 psig) (55 psig +2 psig / -5 psig)
Regulator diaphragm bursting pressure 2800 kPa 2800 kPa
(406 psig) (406 psig)
Reduced pressure system safety valve 600 kPa 600 kPa
(87 psig) (87 psig)
Safety valve (protects flowmeter, vaporizer etc.) 41 kPa ±10% 41 kPa ±10%
(6 psi ±10%) (6 psi ±10%)
Reduced pressure from secondary regulators (at 5 L/min flow)
Oxygen and Nitrous Oxide 152 - 241 kPa (22 - 35 psi)
Air 207 - 283 kPa (30 - 41 psi)
4.5 Auxiliary Gas Outlets
Pipeline supply: Gas is supplied at pipeline supply pressure (see above)
Cylinder supply: Gas is supplied at reduced pressure from cylinder regulator (see above)
Oxygen
Two self sealing connections on rear of machine
Total flow rate: not less than 100 L/min to free air
80 L/min against 243 kPa (36 psig) resistance
70 L/min against 270 kPa (40 psig) resistance
50 L/min against 297 kPa (44 psig) resistance
Air (on machines with Air supply option)
One self sealing connection on rear of machine.
4.6 Oxygen Failure Warning Devices
1. Gas system whistle
2. Visual indicator, direct pressure operated
4.7 Oxygen Flush
Button on front edge of worksurface
The system supplies 35 - 75 L/min when the button is fully depressed.
16
SPECIFICATION
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