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Sperre HLF2/77 air compressor

sperre-hlf2-77-70390

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Sperre HLF2/77 Emergency start air compressor

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    • Data sheet

    ManufacturerSperre
    ModelHLF2/77
    Serial number70390
    Year1985
    Rotation directionCCW - Counter clockwise seen from aft
    Fuel TypeDiesel
    ClassDNV
    OtherDriven by Lister Petter diesel engine type LT1A-23
    m³ /h, cubic meter per hour capacity7,5
    Working pressure BAR30
    Test Pressure BAR45

    More info

    Emergency start air compressor
    Driven by Lister Petter diesel engine
    Type LT1A-23
    30 Bar/ Capacity 7,m3/h

    Sperre Model HLF2/77 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.

    Technical Data
    Performance50 Hz (30 bar)60 Hz (30 bar)
    Speed (RPM)145011751750
    Charging capacity (m³/h)* Diesel driven model Capacity 7,m3/h11913
    Power requirement (kW)2,82,33,1
    Heat dissipation (kCal/h)212917802399
    *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
    Stroke40 mm
    Weight (compressor/el.motor)120 kg
    Lubrication
    Sump capacity1.8 litres
    Lubrication systemSplash
    Operating parameters
    Maximum delivery pressure35 bar
    Ambient temperature45°C
    Normal working pressure LP2–4 bar
    Normal temperature outlet airApprox. 25°C above ambient
    Maximum speed1800 RPM
    Set point thermo switch air alarm/stop75°C/80°C
    RotationAnti-clockwise (looking at the drive end)
    Safety valves set point10% above stage pressure
    Max. noise level81 dBA