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Sperre HL2/77 start air compressor

hor-sperre_hl2_77_no_772316

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Sperre HL2/77 start air compressor

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    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

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    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