View Central System Schematic
Located in the dental office storage room (tank room), the manifold is a primary component of the nitrous oxide central system. In general, it serves to join multiple compressed-gas cylinders. One or more N
2O and O
2 cylinders may be attached to the manifold, but only one line for each gas exits the manifold. The exit lines carry the gases under low pressure (50-55 psi) to operatories plumbed for N
2O-O
2 delivery. Access to N
2O and O
2 in individual treatment rooms is achieved via operatory outlets.
Tank room systems typically include a manifold with safety pressure relief valves, regulators for each cylinder, an alarm monitor gauge, a cable, an N
2O-O
2 supply source (cylinders purchased from a gas supply company), tank restraints, various hoses and gas lines.
Note: When a manifold system is remotely located, a zone valve is required to be installed in a readily accessible area of the dental office.