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Recent content by srinivasakumar

  1. srinivasakumar

    Centrifugal Fan / Blower - Changeover procedure for Incinerator application

    Dear Members. My apologies for the late response & Sincere thanks for your inputs.. The Fan is to API 673. It was a mistake in my original post. it is direct drive. No VFDs. No gear boxes. It is Switch over from duty to standby as part of a planned operation / regular occurrence. There is...
  2. srinivasakumar

    Centrifugal Fan / Blower - Changeover procedure for Incinerator application

    Dear Members, We are planning to install a spare blower ( centrifugal fan - API610) for our SRU Tail Gas incinerator. The control system obviously needs modification. We are trying to work out a scheme that will permit changeover from operating blower to standby blower with no interruption or...
  3. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Thank you Compositepro. The equipment has longer tie-bolts. Our concern was with the R stamp requirement. This is very clear now.
  4. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Many thanks.
  5. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Dear MetEngr Thanks very much. Certificate of compliance from an ASME Certificate Holder - Is this in a specific format available in Code? or is this in a format designed by the ASME certificate holder? Please reply.
  6. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Thank you MetEngr. What form shall we use for the Certificate of Compliance? Should it be from NBIC or ASME Section VIII Division 1? Form R2 has a compliance section. But the part manufacturer in my project only has a "U" stamp. No "R" stamp. Please guide me. I am preparing just in case my...
  7. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Dear MetEngr, One more question. For the additional plates, is it enough for the supplier to furnish a Certificate of Compliance instead of U Part Report. As the plate does not involve any welds, is a certificate of compliance by the manufacturer adequate? I am reading NBIC Part 3 Section 3...
  8. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Dear MetEngr, Thanks once again.
  9. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    Thank you very much Met Engr. After the modifications, I presume, the U stamp becomes invalid. What should we do under such circumstances? Please advise.
  10. srinivasakumar

    R Stamp Requirement :: Plate Heat Exchanger :: Addition of Plates

    We have a Plate Heat Exchanger that is U stamped. We now intend increasing the heat duty by installing additional plates in the heat exchanger. The plates are manufactured by stamping ( pressing) and do not involve any welding. The installation is by Bolting and does not involve any welds. I...
  11. srinivasakumar

    HRSG Steam Drum - Design for Vacuum Conditions

    Thankyou GenB for the additional input.
  12. srinivasakumar

    HRSG Steam Drum - Design for Vacuum Conditions

    Dear Saplanti, Many thanks for your response. My question was if Code mandated full vacuum design for the steam drums. I have gone through ASME Section I carefully, but could not find any requirement. Just wanted to be sure.
  13. srinivasakumar

    HRSG Steam Drum - Design for Vacuum Conditions

    For a HRSG Steam Drum, does ASME Section I, mandate vacuum design check? In other words, is it correct to say that all HRSG Boiler steam drums are required to be designed for full vacuum by ASME Section I? Please be kind enough to reply.
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