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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

    ManufacturerSperre
    ModelHL2/77
    Serial number772316
    kW7,5 kW @50 hz 8,8 kW @60 hz
    RPM1445 50 hz / 1750 60 hz
    Injection pump typeCapacity 25 m3/h
    Volt220-240 / 230 -400 / 380-420 / 440-480
    HZ50 / 60
    ClassDNV
    Electric motor typeSiemens 1 LA5133-4CA10
    Working pressure BAR30
    Test Pressure BAR45

    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)975145011751750
    Charging capacity (m³/h)*18262132
    Power requirement (kW)4,66,85,18,6
    Heat dissipation (kCal/h)3561526339476656
    *Charging capacity is from ambient pressure to final pressure. Tolerance +/-5%.
    Design
    No. of cylinders2
    Cylinder arrangement90° V
    No. of compression stages2
    CoolingAir
    Valve LPReed valve
    Valve HPConcentric plate valve
    Dimensions & weight
    Cylinder diameter LP77 mm
    Cylinder diameter HP50 mm
    Stroke80 mm
    Weight (compressor/el.motor)246 kg
    Lubrication
    Oil typeSynthetic oil (see approved list)
    Sump capacity4 litres
    Lubrication systemSplash
    Operating parameters
    Maximum delivery pressure40 bar
    Ambient temperature45°C
    Normal working pressure LP2–4 bar
    Normal temperature outlet air15°C–30°C above ambient temperature
    Maximum speed1800 RPM
    Set point thermo switch air alarm/stop75°C/80°C
    RotationAnti-clockwise (looking at the drive end)
    Safety valves set point5–10% above stage pressure
    Max. noise level84 dBA
    Max. vibration level40 mm/s-RMS