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  1. mkfe2005

    Is it Ok to utilize API plan 52 & 31 for Benzene OH6 pump seal support system ?

    thanks a lot about your answer. but I have a concern about seal pot in API plan 52. if we have any leakage in here, Benzene will be in liquid phase in the seal pot and the seal pot level will increase. it is unlike services like propane that the fluid goes to flare because of its high vapor...
  2. mkfe2005

    Is it Ok to utilize API plan 52 & 31 for Benzene OH6 pump seal support system ?

    dear all We want to request for a new Benzene pump (OH6 type). based on licencor (UOP Honeywell)spec, the seal arrangement must be tandem with API plan 52 & 31 while for other non OH6 types double arrangement with API plan 53 A or 53B are recommended. I checked the burgmann or JC selection...
  3. mkfe2005

    Dry gas seal instead of segmented floating bushing in API plan 62 with steam quench in Sundyne Pump

    We have a naphtha sundyne pump LMV 322 in our plant. flushing plan is 31 (internal cyclone separator) & API plan 62 with steam quench to avoid cock formation in atmospheric side. My question is whether we can use sundyne non-contacting dry gas seal instead of using segmented floating bushing...
  4. mkfe2005

    Catastrophic bearing failure in Sundyne LMV 331

    Rasul: you are probably right, 0.07 loose fit is too excessive in a high precision gearbox. In fact, I've never seen values more than 90.04 in a sundyne gearbox. Lubrication problems aside, I dont agree with mr. Pellin. What I see is clearly depicting overload in axial direction on lower input...
  5. mkfe2005

    Catastrophic bearing failure in Sundyne LMV 331

    It looks like spalling that is because of overload. Maybe the clearances between bearing and housing is not good. Sundyne says that the maximum bore diameter of lower bearing is 90.07 mm, but for upper, its maximum diameter is 110.02. however, axial load direction is in up direction, it seems...
  6. mkfe2005

    Seal face material of Sundyne compressor LMC337 dry gas seal

    Hi We are installing a sundyne LMC-337 compressor in our gas refinery. the gas is 99% methane. the suction and discharge pressures are 25 barg and 27 barg respectively. the buffer fluid is process gas that enter from port 2. the mechanical seal arrangement is tandem that will be attached. the...

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