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  • Users: 1ton
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  1. 1ton

    Oil ring Vs Oil Bath

    Hi Just would like to know what would be the reason to go for oil ring lubricated bearing against oil bath lubricated. Thanks
  2. 1ton

    Gear Pump

    Hi, Can someone tell me the advantage between an internal and external gear pump. I am using it to pump diesel for one tank to the other. What would be the selection criteria between a internal gear and external gear pump ? Cost ? Maintenence ? Thanks
  3. 1ton

    BS3351 :1971

    Hello Does any body have an old BS3351 :1971 Specification for piping systems for petroleum refineries and petrochemical plants. Just intrested in reading old withdrawn std. Thank you 1ton
  4. 1ton

    Jacketed Coil Pipe

    Hi I would like to know if there is any manufacturer that has fabricated for a jacket pipe 24" diameter and total length of 150 m. We would like the jacketed piped to be coiled at a diameter of 12 m. Thanks 1ton
  5. 1ton

    Design Pressure for Screw Pumps

    I was recently made aware for high pressure screw pump. The design pressure of the inlet and outlet side is different. Example if the design of the discharge side is 80bar, then maybe be the suction side is design at 40bar. Is this a common practice, for screw pump manufacturer. API std doesn't...
  6. 1ton

    Double Seal Vs Single Seal

    Does anyone knows when do we choose double over single seal. Advantage over the other. Any intresting artical on this subject. Thanks 1ton
  7. 1ton

    ISO 9906 - Type number K of the pump

    Hi Can some pls enlighten me on this particular subject. Looking at ISO 9906 1999 and some previous BS for pump performance test. It is mentioned in the std, that there is a "type number K of pump"." When K > 1.2 it is recommended to simulate the site conditions"(pg 12 par...
  8. 1ton

    Pumping Sludge -10% solid

    Hi! Does anybody know the formula to calculate frictional loss in pipe systems for Sludge(10-20%)or grease. Any reference material for system analysis, or design would be appreciated. Thanks
  9. 1ton

    Developing Pump Testing Facilities

    Hi all I am currently developing a pump test facilities to ISO Std accuracy class II. I would like to get to know someone who has experience in developing a pump testing circuits or has and is running a test facilities. Any one who is intrested in sharing their experience whould be appreciated...
  10. 1ton

    Rectangular Tank Design

    Hi all I would like to know if there is a standard for Rectangular Tank Design under Hydrostatic Pressure ? I am using Eugene F. M Pressure Vessel Hand book, this tank design. I think it is a bit conservative. Any other method of calculating, would be appreciated. Tank dimension L=4m , W=2.5m...

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