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  1. PedroBC

    centrifugal pump with seal 53B + 61

    Hi, posting here, because seal area seems dead =/ I have a centrifugal pump with the following data: Process Fluid: Water with small percentage of ethanol (the process fluid is then considered flammable fluid) Flow: 1.5 m³/h Suc. Pressure: 0.65 kgf/cm²g Disch. Pressure: 4.89 kgf/cm²g...
  2. PedroBC

    PLan 53B + 61

    Hi, I have a centrifugal pump with the following data: Process Fluid: Water with small percentage of ethanol (the process fluid is then considered flammable fluid) Flow: 1.5 m³/h Suc. Pressure: 0.65 kgf/cm²g Disch. Pressure: 4.89 kgf/cm²g Temperature: 50°C Vapor Pressure: 1.38 kgf/cm²a Visc...
  3. PedroBC

    Centrifugal Pump operating with bypass line

    I will try explain a little better. 1) Pump Data Sheet: -Qrated= 10 m³/h -Head= 50 meters -Note: After selecting the pump, pump manufacturer to inform pump minimum stable flow. This pump minimum flow shall be added to rated flow. It will be installed a by-pass line at pump discharge with a...
  4. PedroBC

    Mechanical seal material in PVDF

    Hello, I have the following situation: Pump Data Sheet indicates at General Notes: "Pump seal material to be PVDF". I have no idea which part of the seal shall be in PVDF since it has many parts (o-rings, springs, rotating parts etc.) - Liquid: Stripped Wash Water - Service: Wash Water...
  5. PedroBC

    Mechanical Seal Material PVDF

    Hello, I have the following situation: Pump Data Sheet indicates at General Notes: "Pump seal material to be PVDF". I have no idea which part of the seal shall be in PVDF since it has many parts (o-rings, springs, rotating parts etc.) - Liquid: Stripped Wash Water - Service: Wash Water...
  6. PedroBC

    Centrifugal Pump operating with bypass line

    Hello, I have the following situation: Process Data Sheet indicates: -Qrated: 10 m³/h -Head 50 meters - General Note: "Pump to operate with minimum flow bypass line with restriction orifice. Pump Vendor to indicate Pump minimum flow, and this minimum flow shall be added to rated flow...
  7. PedroBC

    Recommendations for discharge piping ( centrifugal pumps)

    Hello, I am trying to find recommendations for discharge piping fittings installation ... Can you guys give me any help ? For pump suction i found the L > 10D (L = Length , D = diameter) the length required to install any kind of fittings ( curves, valves etc...). Any recommendation for...

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