IG or Inert Gas system safeties on ships

• Scrubber cooling water low-pressure alarm (<0.06 MPa, Press. switch calibration)

• Scrubber high level alarm (Float switch, cleaning).

• Scrubber low level alarm (Float switch, cleaning).

• Blower discharge gas high temp. (60°¢, Temp Sensor, Calibration).

• Blower discharge gas extra high temp trip (65 degree Celsius).

• Oxygen,0₂ Content high alarm (5%, Oxygen analyses filter change, calibration with nitrogen, pipeline cleaning).

• Oxygen content extra high trip (6%).

• Blower bearing temp high (temp Sensor, calibration).

• Control air low pressure alarm (0.4Mpa, pressure switch, calibration).

• Deck water seal low level alarm (FloatSwitch).

• Deck water seal supply water flow low pressure alarm, 2 pumps.

• Deck main line high pressure alarm.

• Deck main line low pressure alarm.

• Deck main line extra low pressure alarm & trip.

• Soot blower interlock (uptake valve, Steam cleansing).

• Deck Isolation valve (checking ceperation, Pneumatic cylinder).

• PV breaker (water level).

• PV valve.

• Mast Riser (Flame trap cleaning).