INGERSOLL RAND MODEL CENTAC C-21M3 450 HP CENTRIFUGAL AIR

GENERAL SPECIFICATIONS:

Maximum design pressure rating 125 PSIG
Design discharge temperature 95 F
High air temperature switch setting 275.F
Cooling water flow to compressor 180 GPM @ 80 F
(including intercoolers and aftercooler)
Maximum allowable cooling water pressure 50 PSIG
Vibration trip settings
1st Stage 1.20 Mils
2nd Stage 1.10 Mils
3rd Stage 1.05 Mils
4th Stage 1.00 Mils
Bearing oil pressure 20-30 PSIG
Bearing oil temperature to bearings 110-120 F
Reservoir Capacity 55 Gals.
Oil cooler water requirements 24 GPM @ 80 F
Maximum working pressure of oil cooler
(a) Tube side (air) 150 PSIG
(b) Shell side (water) 300 PSIG
Oil pressure permissive start switch setting 8 PSIG
Low oil pressure trip setting 7 PSIG
Control Air Clean Dry at 60-150
PSIG
Pre-Lube oil pump switch set to
(a) Start pump at 5 PSIG
(b) Stop pump at 15 PSIG
High oil temperature trip setting 130 F
Heaviest piece handled during
(a) Erection-entire unit (approximate) 24,800 lbs.
(b) Routine maintenance - Motor 5,500 lbs.
MACHINE SPECIFICATIONS
Manufacturer Westinghouse
Voltage 4000
Phase 3
Cycle 60
Horsepower 900
Service Factor 1.0
Speed (RPM) 3560

MOTOR SPECIFICATIONS

Manufacturer General Electric
Voltage 2300/4000
Phase 3
Cycle 60
Horsepower 450
Speed 3560 RPM
NOTE
These air compressors were installed in the Pam Am International airlines
jet engine
and service center at J.F.K. International Airport. Each compressor has
a condition
report following given to us by the maintain department of the facility.
CONDITION
Excellent operating condition, completely overhauled with 4 years use sin
ce rebuild.