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Sperre HL2/77 Start Air Compressor

Sperre-77-771995

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Sperre HL2 77 start air compressor

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Data sheet

Manufacturer Sperre
Model HL2/77
Serial number 771995
m³ /h, cubic meter per hour capacity 25
Working pressure BAR 30
Class DNV
kW 6,2
RPM 1450
HZ 50 / 60

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
Performance50 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