Sperre Classic
Technical data
Overview
The Sperre Classic is the world’s most renowned maritime compressor. It has been perfected in demanding working conditions over decades. No wonder it is the most frequently chosen compressor on the world’s oceans.
Benefits
Model HL2/105A is a two stage 90º V-compressor.
Cylinders and compressed air coolers are air-cooled. Cooling air is supplied by a well-dimensioned fan.
Bearings and cylinders walls are splash lubricated.
The compressor and motor are normally supplied mounted together on a foundationand connected by means of a heavy-duty flexible coupling.
Both electrical and diesel engine driven versions are available.
Performance
Specification
50 Hz (30 bar)
60 Hz (30 bar)
Speed (RPM)
1450
1750
Charging capacity (m³/h)*
45
55
Power requirement (kW)
10,7
14
Heat dissipation (kCal/h)
8282
10836
*Charging capacity is from ambient pressure to final pressure. Tolerance +/-5%.
Design
Specification
No. of cylinders
2
Cylinder arrangement
90° V
No. of compression stages
2
Cooling
Air
Cooling system
Direct driven axial fan
Valve LP
Reed valve
Valve HP
Concentric plate valve
Dimensions & weight
Specification
Cylinder diameter LP
105 mm
Cylinder diameter HP
50 mm
Stroke
80 mm
Weight (compressor/el.motor)
328 kg
Lubrication
Specification
Oil type
Synthetic oil (see approved list)
Sump capacity
4 litres
Lubrication system
Splash
Operating parameters
Specification
Maximum delivery pressure
40 bar
Ambient temperature
45°C
Normal working pressure LP
4–5 bar
Normal temperature outlet air
15°C–30°C above ambient temperature
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
5–10% above stage pressure
Max. noise level
84 dBA
Max. vibration level
40 mm/s-RMS