Compressed Air Palnt - Decripton

This consists of one four stage reciprocating air compressor driven by an electric motor, one Junkers free piston engine operating a four stage air compressor, and relater flasks, piping, manifolds and valves. Both compressors are located in the maneuvering room. The manifold is located in the control room.

The motor weights 1700 kg (3750 lb.) and is rated at .56 to 62 kw on a voltage range of 110 to 170 volts, with a related speed range of 535 to 600 rpm.

The direct connected compressor weights1155 kg (2440 lb) takes 76 to 84 pse (75 to 83 H.P.) depending on revolutions and is rated at 14 to 15.4 liters per minute (.193 to .543) cu ft per minute. The discharge pressure of the air is 205 kg/cm2 (2920 psi).

The Junkers compressor consists of a free piston diesel engine and compressor in a common housing. The assembled weight is 560 kg (1234lb.) excluding muffler, tail pipe and insulation. It operates at 780 to 840 rpm, and is rated at approximately 50 horsepower.

The related compressor is rated at an effective air intake of 2 cu meters per minute (70.6 cu ft pm) and a discharge of 10 liters per minute (.353 cu ft pm).

The air flasks have a total capacity of 6200 liters (219 cu ft) at 2920 psi. This is sufficient air to evacuate all main ballast, fuel ballast and bow and stern buoyancy tanks once at a depth of 180 feet or 5.65 times the free air volume of these tanks.Most of them are located in the superstructure, but six flasks which are part of four banks are located in the maneuvering room and engine room.

The maximum operating pressure of the sytem as has been stated is 2920 psi.

The high pressure air manifold is a steel housing to which steel valve housings are welded. Valve bonnents are a special bronze, spindles steel, discs steel, springs phosphor bronze and threaded steel insert is 18/6 chrome nickle steel. Air piping is copper plated steel. Materials for valves are the same as those for the manifold.