Amico Dome Loaded Manifold NFPA - Manual (Page 8)

8 Amico Pipeline
DUAL LINE REGULATOR
On every Amico Automatic Gas Manifold the line regulator is capable
of maintaining a constant dynamic delivery of pressure at the maximum
designed flow rate of the system. For Oxygen, Nitrous Oxide, Medical Air
and Carbon Dioxide service, the line regulators are factory preset at 55psi
and for Nitrogen it is 170psi.
PRESSURE RELIEF VALVE
Pressure relief valves are installed downstream of all pressure regulators and
are set at no more than 50% above the setting of the pressure regulator.
Relief valves are capable of fully relieving the pressure at the set point. All
pressure relief valves in the manifold have piping connections to allow for con-
nection of a vent line to the outside of the facility.
PILOT REGULATOR
A single stage, diaphragm-type, relieving regulator is used to limit the
amount of pressure provided to the domes of the bank regulator.
It is used only on Nitrogen manifolds and manifolds with 100 PSI or more
delivery pressure.
SOLENOID VALVE
A 12 VDC solenoid assembly is used to direct dome bias pressure to one of
the bank regulators. As dome bias pressure is directed to one of the bank
regulators, dome pressure of the other bank regulator is vented through an
exhaust in the solenoid valve.
Quarter-turn ball valves are provided upstream and downstream of each line
regulator. These valves allow for the removal and servicing of one of the
line regulators while the other is in use.
LINE REGULATOR BALL VALVE
Description of Parts
POWER SUPPLY