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  • Users: lahcen
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  1. lahcen

    Cover leakage of centrifugal compressor

    Hi guys, A centrifugal compressor (Thermodyn), there are two pipes (see the picture), I want to know the role of this pipes and if the pipe of the suction side is very hot that means there is a problem...
  2. lahcen

    balancing a fan

    I want to know the formula to calculate the two masses in position 72° and 144° (they found 1.5gr and 1gr by the calculator) please see the file (page 11) to understand my meaninghttps://files.engineering.com/getfile.aspx?folder=62b87ad2-67aa-4305-af65-fd3965fe8cbf&file=bo0276.pdf
  3. lahcen

    nominal diameter

    Hi guys; I want to know the relation between the real diameter and the nominal diameter of centrifugal compressor; for example for BCL307 (the real diameter of impeller is 370mm but the nominal diameter is 300mm). Thanks.
  4. lahcen

    combination bearings of vertical motor

    Hi; we have in our plant a vertical pump (EBARA) with 10 stages; to pump propane. the driver of this pump is a electric motor (Fuji electric). my question is how to mount driving side bearing (which figure is correct? fig1 or fig2? All information is attached. Thanks...
  5. lahcen

    bearings combination of vertical motor

    Hi; we have in our plant a vertical pump (EBARA) with 10 stages; to pump propane. the driver of this pump is a electric motor (Fuji electric). my question is how to mount driving side bearing (which figure is correct? fig1 or fig2? All information is attached. Thanks...
  6. lahcen

    MECHANICAL BEARING MONITOR

    I WANT TO KNOW IN DETAIL THE PRINCIPLE OF OPERATION OF THIS MECHANICAL BEARING MONITOR http://www.nikkiso.com/products/pump/canned/option.html THANKShttp://files.engineering.com/getfile.aspx?folder=5b88209d-f9a5-4b84-8c59-5ebf094e456c&file=Lagermonitor_mech.pdf
  7. lahcen

    change the agitators motor

    we use an agitator to separate the natural gas from sealing oil of a compreseur, and we want to change the agitators motor (speed = 1000 r / m) with a motor that has the same features except for its speed (1500 r / m)? is that possible? and does it have an ifluence on the separation operation or...
  8. lahcen

    change the agitators motor

    we use an agitator to separate the natural gas from sealing oil of a compreseur, and we want to change the agitators motor (speed = 1000 r / m) with a motor that has the same features except for its speed (1500 r / m)? is that possible? and does it have an ifluence on the separation operation...
  9. lahcen

    flow rate of air screw compressor ATLAS COPCO ZR4-56

    we have an air screw compressor ATLAS COPCO ZR4-56 I want to know the flow rate (m3 / hr) Please if anyone has the same type compesseur help me
  10. lahcen

    flow rate of ATLAS COPCO ZR4-56

    we have an air screw compressor ATLAS COPCO ZR4-56 I want to know the flow rate (m3 / hr) Please if anyone has the meme type compesseur help me
  11. lahcen

    DGS contamination

    Dear all forum members we have a centrifugal compressor. Its suction pressure is 55 bars ( T=56°C) and the discharge pressure is 118 bars (T= 120°C). The DGS is tandem with no intermediary labyrinth. The DGS is contaminated with the oil carried over with the process gas; this gas is taken from...
  12. lahcen

    dry gas seal contamination

    We have a compressor that compresses an associated gas (gas separated from oil). But although all the filtration we always have contamination of the dry gas seals by oil. What are the possible causes of this contamination knowing that the filtration is by the standards? Why always the failure...

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