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Sperre HLF2/77 air compressor — Manufacturer: Sperre, Model: HLF2/77, Serial number: 70390, Year: 1985, Rotation direction: CCW - Counter clockwise seen from aft, Fuel Type: Diesel, Class: DNV, Other: Driven by Lister Petter diesel engine type LT1A-23, m³ /h, cubic meter per hour capacity: 7,5, Working pressure BAR: 30, Test Pressure BAR: 45 View larger
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Sperre HLF2/77 air compressor

sperre-hlf2-77-70390

Used

Sperre HLF2/77 Emergency start air compressor

More details

    • Data sheet

    Manufacturer Sperre
    Model HLF2/77
    Serial number 70390
    Year 1985
    Rotation direction CCW - Counter clockwise seen from aft
    Fuel Type Diesel
    Class DNV
    Other Driven by Lister Petter diesel engine type LT1A-23
    m³ /h, cubic meter per hour capacity 7,5
    Working pressure BAR 30
    Test Pressure BAR 45

    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) 1450 1175 1750
    Charging capacity (m³/h)* Diesel driven model Capacity 7,m3/h 11 9 13
    Power requirement (kW) 2,8 2,3 3,1
    Heat dissipation (kCal/h) 2129 1780 2399
    *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 40 mm
    Weight (compressor/el.motor) 120 kg
    Lubrication
    Sump capacity 1.8 litres
    Lubrication system Splash
    Operating parameters
    Maximum delivery pressure 35 bar
    Ambient temperature 45°C
    Normal working pressure LP 2–4 bar
    Normal temperature outlet air Approx. 25°C above ambient
    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 10% above stage pressure
    Max. noise level 81 dBA