KIRLOSKAR PNEUMATIC REFRIGERATION AND AIR CONDITIONING COMPRESSOR 'FK/GK' SERIES

  FEATURES :

  1. Crankcase is made of high grade cast iron and is heat treated for stress relieving. Fine bored and honed cylinders are integral with the crankcase, resulting in mirror-smooth running surface.
  2. Bottom cover, bearing covers, cylinder covers are also made of high grade cast iron, heat treated for stress relieving and machined with great accuracy, keeping in view the interchangeability of all the parts.
  3. Crankshaft is of S. G. iron, perfectly balanced statically and dynamically. The bearing surfaces are ground and polished to fine tolerances. The shaft seal is of rotary type and continuously immersed in oil supplied through the drilled crankshaft.
  4. Connecting rods and pistons are of light weight aluminum alloy. The piston is provided with one compression ring and one oil scraper ring.
  5. Force feed lubrication is ensured by crankshaft driven gear pump incorporated in rear bearing cover.
    The oil level may be checked by a sight glass provided in the crankcase.

  APPLICATIONS :

The salient features like low noise level, vibrationless running and light weight make FK/GK compressors ideal for mobile applications like bus/ train/ ship airconditioning, refrigerated vans, trucks, trailers and containers. FK/GK compressors are also ideal for water coolers, display cabinets, deep freeze cabinets and air-conditioners.

FK/GK SERIES : TECHNICAL DATA

TECHNICAL DATA

FK/GK compressors are suitable for use
with R-12, R-22, R-114 & R-134a
Description FK3 FK4 GK25
No. of Cylinders 2   4   4  
Bore                                                                        mm 55   55   70  
Stroke                                                                      mm 49   49   55  
Displacement at 1450 RPM.                                   m3/hr 19.84   40.52   73.65  
Weight without flywheel                                         kg 29   65   92  
Maximum speed, RPM with                                    R-12
                                                                                R-22		 2500 
2000  		 2500  
2000  		 2000  
2000  
Minimum speed, RPM with R-12 & R-22 900   900   900  
Maximum condensing temp.   oC                             R-12
                                                                                R-22		 70 
60  		 70 
60  		 70  
60  
Maximum evaporating temp.   oC     R-12 & R-22 10   10   10  
Oil change                                                                L 1.5   3   4  

Dimensions in mm.                                                   Length=  

Width=  
 
Height=  

 320   455   470  
235   305   355  
404   437   465  

PERFORMANCE CHART

Compressor Evaporating Temperature
oC		 Condensing Temperature
Refrigerant R-12
2000 RPM		 Refrigerant R-22
2000 RPM
40oC 50oC 60oC 40oC 50oC
k cal/hr kW k cal/hr kW k cal/hr kW k cal/hr kW k cal/hr kW
FK3 +10 15700 4.6 14100 5.1 12700 5.7 24800 6.8 21800 7.9
+5 13000 4.5 11700 4.9 10200 5.3 20800 6.4 18200 7.3
0 10800 4.2 9400 4.6 8300 4.7 16800 6.0 14800 6.8
-10 7000 3.7 6000 3.9 5000 4.5 11000 5.3 11200 6.0
-20 4150 3.0 3500 3.1 2800 3.3 6800 4.6 5500 5.1
-30 2300 2.3 1600 2.4 1200 2.5 4000 4.0 2900 4.3
FK4 +10 28400 9.0 28400 9.0 25500 10.3 52270 11.7 46100 13.8
+5 23500 8.8 23500 8.8 21000 9.8 43400 10.9 38400 12.3
0 19300 8.3 19300 8.3 17000 9.3 35450 10.0 30900 11.3
-10 12000 6.9 12000 6.9 10300 7.8 22500 8.5 19500 9.0
-20 7000 5.4 7000 5.4 5400 6.3 13400 6.9 11150 7.4
-30 3400 4.3 3400 4.3 2200 4.7 7200 5.3 5000 5.7
GK25 +10 52900 13.7 43900 15.9 40500 17.9 90800 22.1 79200 25.0
+5 45000 13.3 40000 15.1 34100 17.4 76300 20.8 65900 23.1
0 38000 12.7 33300 14.0 28700 15.6 62500 19.4 53300 21.5
-10 25000 11.0 22000 11.7 18500 12.6 40000 16.5 33800 18.1
-20 15000 8.4 12900 9.0 10500 9.8 24200 13.3 20000 14.2
-30 8200 6.0 6200 6.5 4700 6.8 12500 10.0 9600 10.6
  
Notes :
Capacities based on :
Liquid sub-cooling of 0 deg. C.
Return gas temperature 20 deg. c

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