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Sperre HL2 77 start air compressor
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Sperre-77-771995
Used
Sperre HL2 77 start air compressor
Manufacturer | Sperre |
Model | HL2/77 |
Serial number | 771995 |
kW | 6,2 |
RPM | 1450 |
Class | DNV |
HZ | 50 / 60 |
m³ /h, cubic meter per hour capacity | 25 |
Working pressure BAR | 30 |
Sperre HL2 77 start air compressor
Model HL2/77 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) | 975 | 1450 | 1175 | 1750 |
Charging capacity (m³/h)* | 18 | 26 | 21 | 32 |
Power requirement (kW) | 4,6 | 6,8 | 5,1 | 8,6 |
Heat dissipation (kCal/h) | 3561 | 5263 | 3947 | 6656 |
*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 | 80 mm | |||
Weight (compressor/el.motor) | 246 kg | |||
Lubrication | ||||
Oil type | Synthetic oil (see approved list) | |||
Sump capacity | 4 litres | |||
Lubrication system | Splash | |||
Operating parameters | ||||
Maximum delivery pressure | 40 bar | |||
Ambient temperature | 45°C | |||
Normal working pressure LP | 2–4 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 |