General Information Es - Ingersoll-Rand 7/31 Operation And Maintenance Manual

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GENERAL INFORMATION
7/71, 12/56 VARIABLE HEIGHT RUNNING GEAR
Braked version (M&E)
COMPRESSOR
Actual free air delivery.
(7/31)
Actual free air delivery.
(7/41)
Actual free air delivery.
(7/51)
Actual free air delivery.
(7/71)
Actual free air delivery.
(12/56)
Normal operating discharge pressure.
(7/31, 7/41, 7/51, 7/71)
Normal operating discharge pressure.
(12/56)
Maximum allowable pressure.
(7/31, 7/41, 7/51, 7/71)
Maximum allowable pressure.
(12/56)
Safety valve setting.
(7/31, 7/41, 7/51, 7/71)
Safety valve setting.
(12/56)
Maximum pressure ratio (absolute).
(7/31, 7/41, 7/51, 7/71)
Maximum pressure ratio (absolute).
(12/56)
Operating ambient temperature.
Whisperised –10_C TO +46_C (14_F TO 115_F)
Standard –10_C TO +52_C (14_F TO 126_F)
Maximum discharge temperature.
7/31, 7/41, 7/51, 7/71, 12/56
3 –1
3,0 m min (105 CFM)
3 –1
4,0 m min (140 CFM)
3 –1
5,0 m min (175 CFM)
3 –1
7,1 m min (250 CFM)
3 –1
5,6 m min (200 CFM)
7 bar (100 PSI)
12 bar (175 PSI)
8,6 bar (125 PSI)
13 bar (190 PSI)
10 bar (145 PSI)
13,5 bar (200 PSI)
7,5 : 1
11,5 : 1
120_C (248_F)
Cooling system.
Oil capacity.
(7/31, 7/41)
Oil capacity.
(7/51)
Oil capacity.
(7/71)
Oil capacity.
(7/51, 12/56)
Maximum oil system temperature.
Maximum oil system pressure.
(7/31, 7/41, 7/51, 7/71)
Maximum oil system pressure.
(12/56)
Oil injection
8,5 litres
8,5 litres
8,5 litres
8,5 litres
120_C (248_F)
8,6 bar (125 PSI)
13,0 bar (190 PSI)