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Recent content by CompressorExpert

  1. CompressorExpert

    LPG Pump for Low NPSH duty

    M2609 Not sure if you have already solved your problem, but I strongly recommend sliding vane pumps. I've personally used those several times for LPG pumping application when theoretical NPSH; I mean acc. to process data sheet ;-)); were zero. You may want to consider PD pumps but need to reduce...
  2. CompressorExpert

    Compressor Tandem Dry gas Seal : Failure of inboard and outboard seal

    Ed16, this issue had been raised also by Siemens as a potential hazard in dry gas seal arrangement. I received a safety notice 3 or 4 months earlier. Special monitoring on outboard seal should be performed. Regards;
  3. CompressorExpert

    Bullheading Pump

    Inject high pressure diesel into an oil or gas well for pressure equalising of a closed SSSV (Sub Surface Safety Valve) called as Bull Heading.
  4. CompressorExpert

    Bullheading Pump

    Hi; For one of our project we need a diesel bullheading pump and we decided to use reciprocating API 674 type for this application. (High pressure pump for opening SSSV valve) I found some of the reciprocating pump vendors but actually I prefer to work with someone who has experience in...
  5. CompressorExpert

    Control of Reciprocating gas Compressor

    Control procedure and philosophy depend on process and machine control needs which varies for projects. Do you need any specific type of control system?
  6. CompressorExpert

    Diesel Engine Drives horizontal pump

    Off course that you can bolt engine to basement. In that case I strongly recommend you to use flexible coupling specially rubber coupling in this case same as most diesel driven fire water pump.
  7. CompressorExpert

    Software for centrifugal compressor sizing

    I faced with 4 so matured centrifugal compressors (20 years ago) in my project. As we must verify these compressors for new conditions due to process optimisation, I need performance curves for new conditions but I couldn’t get any data from vendor. Can I use any software to give me guidelines...
  8. CompressorExpert

    Constant reciprocating discharge pressure

    As you know, reciprocating compressors designed for constant capacity. It means that your compressor must be fed by design capacity. Ok. What will happen when inlet capacity decreased? In that case we must increase inlet capacity virtually by using of unloading devices (suction valve unloader...

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