Gas Manifold
Is located on the hospital's ground floor or in a separate building.
Stabiliser
Makes it possible to distribute medical gases at reduced pressure to various buildings and departments in the hospital. The stabiliser reduces and stabilises the various pressures of the manifold centre and the oxygen tank.
Pressure monitor/pressure watch
The pressure monitor monitors the operating pressures of the various gases to the department. The pressure monitor also acts as the department's reserve centre. If the central gas supply is interrupted, reserve gas cylinders can be temporarily connected to the pressure monitor. It also controls that the oxygen pressure is always higher than the nitrous oxide pressure. This is to prevent nitrous oxide from flowing across into the oxygen lines through modern equipment. Today this safety function is generally already built in, for example in anaesthetic equipment. It is also possible to use a pressure watch instead of a pressure monitor. It has the same functions except one, it does not control that the oxygen pressure is always higher than the nitrous oxide pressure.
Alarm units
Indicate if something unforeseen happens to the gas pressure. If a low-pressure alarm occurs, a reserve gas cylinder has to be connected. The alarm can be transferred at the same time to a manned alarm centre.
Emergency shutoff box
If a fault occurs in an operating theatre or in a gas outlet so that gas escapes, the gas can be shut off using the emergency shutoff box valves. The emergency shutoff box is located in the corridor outside each operating theatre or group of ward rooms. It is easy to shut off the gas supply with this shutoff box without effecting other parts of the hospital.
Gas outlets in wall , bed head units or ceiling pendants
Medical oxygen, nitrous oxide, medical air and instrument air usually come from gas outlets located in the wall inside bed head units or ceiling pendants. These gas outlets are designed so that it is never possible to connect equipment to wrong outlet. An outlet valve is closed automatically when the equipment is disconnected. This is to prevent the gas escaping into the ward room.
