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Posted Date:

 08-06-19

Category:

 Ship parts & equipment

Subject:

 HASEGAWA VM42 RM Compound Compressor and Spare Parts

 Details & Description      

 HASEGAWA VM42 RM Compound Compressor and Spare Parts

VM42RM compressors should not be operated beyond the following limits:

Compressor RPM: Max. = 1250 rpm (VM =1500rpm) Min. = 600 rpm
Compression ratio* Max. = 15 Target Max: R717 ?10, R22 ?11
Pressure difference Max. = 227 psi (16.47 kg/cm″) [1.6MPa]

Suction pressure, Two stage compressors:
Max. 28 psig (C.S.T: R717 = 14F, R22 = 5F)
Max. 0.2 MPaG (C.S.T: R717 = -10C, R22 = -15C)
Min. 11 psig (C.S.T: R717 = -76F, R22 = -94F)
Min. -0.08MPaG (C.S.T: R717 = -60C, R22 = -70C)
RM type compressor
Max. Determined by motor capacity.
Min. 11 psig (C.S.T: R22 = -94F)
Min. -0.08MPaG (C.S.T: R22 = -70C)

Model VM42 
Cylinders: 4+2
RPM (Max): 1200
Bore In.: 115mm
Stroke In. 90mm
Unloading Steps 4-2
Suction In. 80mm
Discharge Low Stage In.: 40 mm 
Suction High Stage In.: 40 mm
Discharge In.: 32 mm
Net Weight kg 1290
Oil Charge Litres: 25

Discharge pressure Below: 	213 psig (C.S.T: R717 = 104F, R22 = 104F) 
				1.5 MPaG (C.S.T: R717 = 40C, R22 = 40C) 
When compression ratio is high, temperature of discharge gas should be less than 
248F. 

Oil Pressure: 		Max. = 114 psig 		Min. = 28 psi Differential
			Max. = 8kg/cm2G 		Min. = 2kg/cm2 Differential 

Oil Temperature:	Max. = 140F 			Min. = 59F
			Max. = 60C 			Min. = 15C
			Normal operation = 131F 	Normal operation = 55C

Please dont hesitate to contact with us.
Best Regards,
Arnoma NESW S.L.

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