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  1. srisua

    heat transfer coefficient for steam to palm oil

    Dear Sir, I have gone through the same, but couldn't found exact heat transfer coefficient. My maintenance temperature is 32 deg C and flowable temperature is 55 degC. Now you are requested to kindly suggest us Regards Srinivas
  2. srisua

    heat transfer coefficient for steam to palm oil

    Dear Seniors, I am designing palm oil storage tank and palm oil require heating for flow in pipes for which I am designing coil heater for storage tanks. Coil heater is always dipped in palm oil and heating medium is steam. I have calculated heat load requirement, heatlosses through shell...
  3. srisua

    Dome roof tank

    Dear Seniors, I have designed lot of fixed cone roof storage tanks as per API 650. Recent past one of my customer asking dome roof storage tank for storing of palm oil. Now my question is for which type of applications dome roof will be preferable? What will be the major difference between...
  4. srisua

    Heating system for palm oil

    Mr. Little inch, Please find reply below 1. Tanks will be fully insulated to avoid heat loss 2. There is no source available with client, I need to do some thing to create heat source. Initially I thought to put electrical heaters. Now I am thinking to put either auxilary boiler to create...
  5. srisua

    Heating system for palm oil

    Dear Seniors, There are five very big storage tanks like 2500cum-1no, 2000Cum-2nos and 750cum-2nos in which Palm oil being stored. Palm oil at lower temperature is not flowable and hence heating is mandatory. Customer is not having steam facility and hence we suggested electrical immersion...
  6. srisua

    Pump casting broken

    Mr. Desertfox Thank you very much and will be done accordingly Regards
  7. srisua

    Pump casting broken

    Kind attn: Mr. Desertfox Dear Sir, Pump and motor alignment done by pump manufacturer, not by us. Total assembly of pump and motor is mounted on foundation and proper grouted with special cement by us. I am also agreeing that it could be the reason of misalignment. meanwhile I am suspecting...
  8. srisua

    Pump casting broken

    Kind attn: desertfox Dear Sir, Yes, as you said there might be undue stress due to inadequate pipe supports. I am also suspecting casting defects in pump. I dont feel thermal expansion between day and night temperatures as in India, at the moment maximum 30 degC and minimum is 20 deg C...
  9. srisua

    Pump casting broken

    Kind attn: Mr. BIMR Dear Sir, This installation is in India. Project is under construction, we have erected pump and piping just 15 days back. Pump has never been operated as of today. As it is winter in India, temperature is 30 deg C only. I should have not used the word "medium is...
  10. srisua

    Pump casting broken

    Mr. Artisi, your suggestions are noted and thank you very much. Regards
  11. srisua

    Pump casting broken

    Mr. Artisi Yes sir, pump has never been operated. This project is under construction. pump was supplied by customer, we have erected the same. Further piping was designed and erected by us. After few days of erection, we have noticed crack. Regards
  12. srisua

    Pump casting broken

    Dear Mr. Bimr, Pump has not started as of now and hence vibration is not an issue. Pump is properly anchored to foundation. Yes, as you said inadequate supports may caused Strainer is not hanging, it is properly anchored There is no chance to for thermal expansion and medium is cooilng...
  13. srisua

    Pump casting broken

    Dear sirs, After seeing your replies I had spoken to the fabricator who had erected pump and piping. As per him please note the following 1. Pump is not operated as of now. Hence no vibration generated. 2. The major mistake what he observed is at the discharge side of piping there was no...
  14. srisua

    Needle valve, globe valve

    Dear Sirs, Can anyone please suggest me the differences between needle valves and globe valves. Up to what size we will get needle valves. Regards
  15. srisua

    Pump casting broken

    Dear seniors I have erected a positive displacement pump along with piping in one of our project. after completion of erection of piping we have observed a crack at pump discharge flange. Photographs of the same attached herewith. My customer is saying that this is happened due to mismatch...
  16. srisua

    Flushing of piping

    Thank you little inch. you are 100% correct. I am trying to do this on the cheap only. your suggestions are well taken and follow Regards Srisua
  17. srisua

    Flushing of piping

    Dear Seniors, Kindly suggest me the requirements of cardboard blasting/air blowing piping we have installed piping, working pressure is 54kg/cm2, temperature is ambient. We are going to do hydrostatic test with a pressure of 81 kg/cm2. Customer asked us flushing procedure. I said as we are...
  18. srisua

    Butterfly valves

    Mr. MickMc Thankyou for your suggestion and gone through the photograph sent to you, this is exactly same as my strainer, but the valve showing in photograph is not wafer lug type. May be double or triple offset butterfly valve. Mr. Keyepitts Thanks for your suggestion, yes, i should not...
  19. srisua

    Butterfly valves

    Dear Mr.Muktiyadi, Mr. Gerhardl, Thank you very much for your valuable time and response. I have almost got answer from the reply of Mr. Muktiyadi. Mr. Gerhardl, you need not to say sorry for long reply and as a juniors we should always thankful to you. Coming to point, we are doing this...
  20. srisua

    Butterfly valves

    Dear MickMc Thank you very much for your reply. In my case I have used wafer type butterfly valve for isolating of duplex strainer with EPDM seat. This strainer will be mounted at pump suction. Duplex strainer containing two bodies, if one body chokes, manual change over will be done to...

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