Amico Dome Loaded Manifold NFPA - Manual (Page 8)

8 Amico Pipeline
LINE REGULATOR BALL VALVE
Quarter-turn ball valves are located upstream and downstream of each line
regulator. These valves allow for removal and servicing of one line regulator while
the other is in use.
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 designated flow rate of the
system. For Oxygen, Nitrous Oxide, Medical Air and Carbon Dioxide service, the line
regulators are factory preset at 55 psi and for Nitrogen at 170 psi.
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 connection of a vent line to the
outside of the facility.
PILOT REGULATOR
A single stage, diaphragm type, relieving regulator 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 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.
Description of Parts