Details

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Features

• Model HLF2/77 is a two stage 90º V-compressor.
• Cylinders and compressed air coolers are air-cooled.
• Bearings and cylinders walls are splash lubricated. The compressor and motor are normally supplied mounted together and connected by means of a heavy-duty flexible coupling.
• Both electrical and diesel engine driven versions are available.

Technical Data

Performance	50 Hz (30 bar)		60 Hz (30 bar)
Speed (RPM)	1450		1750
Charging capacity (m³/h)*	11		13
Power requirement (kW)	2,8		3,1
Heat dissipation (kCal/h)	2129		2399
*Charging capacity is from ambient pressure to final pressure. Tolerance +/-5%.
Design
No. of cylinders	2
Cylinder arrangement	90° V
No. of compression stages	2
Cooling	Air
Valve LP	Reed valve
Valve HP	Concentric plate valve
Dimensions & weight
Cylinder diameter LP	77 mm
Cylinder diameter HP	50 mm
Stroke	40 mm
Weight (compressor/el.motor)	120 kg
Lubrication
Sump capacity	1.8 litres
Lubrication system	Splash
Operating parameters
Maximum delivery pressure	35 bar
Ambient temperature	45°C
Normal working pressure LP	2–4 bar
Normal temperature outlet air	Approx. 25°C above ambient
Maximum speed	1800 RPM
Set point thermo switch air alarm/stop	75°C/80°C
Rotation	Anti-clockwise (looking at the drive end)
Safety valves set point	10% above stage pressure
Max. noise level	81 dBA