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Sperre HL2/77 start...
Sperre HL2/77 start air compressor
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Sperre HL2/77 start air compressor
hor-sperre_hl2_77_no_772316
Used
Sperre HL2/77 start air compressor
Data sheet
| Manufacturer | Sperre |
| Model | HL2/77 |
| Serial number | 772316 |
| kW | 7,5 kW @50 hz 8,8 kW @60 hz |
| RPM | 1445 50 hz / 1750 60 hz |
| Properties | Capacity 25 m3/h |
| Volt | 220-240 / 230 -400 / 380-420 / 440-480 |
| HZ | 50 / 60 |
| Class | DNV |
| Electric motor type | Siemens 1 LA5133-4CA10 |
| Working pressure BAR | 30 |
| Test Pressure BAR | 45 |
More info
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 | |||