Sperre Classic
Technical data
Overview
HL2/90A
Benefits
- Model HL2/90A 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 foundation, and 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)*
35
40
Power requirement (kW)
8,2
10,3
Heat dissipation (kCal/h)
6346
7972
*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
90 mm
Cylinder diameter HP
50 mm
Stroke
80 mm
Weight (compressor/el.motor)
326 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
3–4 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