Gaseous Oxygen/Nitrogen Distribution Panels And Cylinders General, Physical And Functional Description Flashcards
O2N2 Distribution Panel Components
Piping
O2 and N2 system piping and fitting shall comply with MIL-STD-777
O2N2 Distribution Panel Components
Reducing Manifolds/Valves
Operational function, provides a means of reducing gas system to a usable working pressure
Reducing gas system to usable working pressure for O2
O2 -3000 PSIG
O2 -3000/50 PSIG
Reducing gas system to usable working pressure for N2
N2 -5000/3500 PSIG
N2 -5000/2000 PSIG
N2 -2000/50 PSIG
Storage Flask for O2
Green
Storage Flask N2
Grey
Charging Stations
Metal cabinet with lockable door
Mounted to bulkhead
Tare Weight
The combined weight of a cylinder and valve assembly without cap
O2 Operating Pressure for Flask and Cylinders
3000 PSIG Flask
1800-2400 PSIG Cylinders
N2 Operating Pressure for Cylinders
1800-2265 PSIG
Anchor Windlass Cylinder
500 PSIG
Cylinder Specification (3 sections)
DOT -Department of Transportation
3AA -Specification of type and material of cylinder construction
2265 -Service Pressure in psi
Manufacturing Data
4-70 -Date of manufacture and original test date
XX -Inspector’s official mark
+- -Cylinder qualifies for 110% filling
YY
Manufacturer’s identifying symbol
Retest Markings
4-75 -Data of first 5 year hydrostatic retest
ABC -Retester identifying symbol
+- -Cylinder requalifies for 110% filling
*- -Cylinder qualifies for 10-year retest interval
Cylinder Color Code Yellow
Flammable
Cylinder Color Code Brown
Toxic or Poisonous
Cylinder Color Code Blue
Anesthetic or Harmful
Cylinder Color Code Green
Oxidizes
Cylinder Color Code Red
Fire Protection
Cylinder Color Code Gray
Inert Gas
Cylinder Valves
Packed Valves
Packless Valve
Cylinder Safety Devices
Unbacked safety caps with rupture disks
Blows out at 2600-3000 PSIG
