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  1. DiegoMartinez

    Valve selection

    UN: Please could you say how much the carbon steel valve with Stellite overlay cost? However my preference is to choose the valve I mentioned above. Rgds Diego
  2. DiegoMartinez

    Valve selection

    Thanks UNSR, I thought about getting the following valve: 3" cLASS 1500 gLOBE, rf, bODY: a351 CF8M, Trim: A182 316 SS with Stellite Overlay. However, I'd assume the worse case scenario that the service is wet Co2. Now are you suggesting the following valve: A216 WCB, with Stellite overlay...
  3. DiegoMartinez

    Valve selection

    Thanks Guys, The service is saturated Co2 and I am wondering if I can use A216 WCB body and 316SS Trim except Seat ring with Stellite overlay over Carbon Steel. I am aware of the noise but it would not be operated regularly. Rgds Diego
  4. DiegoMartinez

    Valve selection

    People, I want to use a 3" Class 1500 Globe valve on the following service: 80% Co2 - 20% Methane Design Pressure: 150 Barg Design temperature: -10C to 120C Onshore application If I want to use SS trim and body, the valve would be very expensive; however I know my best bet is to use 316 for...
  5. DiegoMartinez

    Compressor/ Turbine Guide Book

    Thanks Feric, Gracias, D
  6. DiegoMartinez

    Distance between surge line and discharge NRV

    People, Do you know if it is a requirement that the distance between the compressor surge connection take off from the discharge line and the discharge check valve to be minimum? If so, what is the standard? Regards, Diego
  7. DiegoMartinez

    SS Insulation

    Gents, Thanks for your feedback. Please could you tell me where is classified as chloride environment? My application is an onshore gas plant. What about FPSO projects? Rgds Diego
  8. DiegoMartinez

    SS Insulation

    Gents, Well, the vessel is to be installed in a normal atmosphere. Co2 media and ops pressure/ Temperature in the order of 150 Barg and 50 C accordingly. I don't know the paint spec but I can get back to you tomorrow. However, in such a condition what is the suitable/ minimum Choloride...
  9. DiegoMartinez

    Compressor/ Turbine Guide Book

    All, I have done a Solar Turbine course and I am wondering if anyone can recommend a good book regarding the compressors and turbines as a study/refreshment book. Rgds Diego
  10. DiegoMartinez

    SS Insulation

    All, Does anyone know if SS piping/Vessel need painting if it is to be insulated? If yes, why? Can you refer me to the relevant code? Rgds D
  11. DiegoMartinez

    AS 1210

    People, I want to work out the shell thickness of a vessel as per AS 1210 but I am unable to find a formula for minimum required thickness. Could anyone tell me what is the formula to work this out? Secondly, the process data is as follows: Design pressure: 150 Barg Material: Plate A240...
  12. DiegoMartinez

    AS 1210

    Let me rephrase it: what is the minimum required thickness formula for a pressure vessel subjected to internal pressure? Rgds D.M
  13. DiegoMartinez

    AS 1210

    People, I want to know what is the minimum thickness of a 10" gas scrubber fabricated from A240-316/316L SS based on AS 1210. Rgds Brighton
  14. DiegoMartinez

    Safety zone for pneumatic testing

    Hi All, Does anyone know if there is a safety zone when performing pneumatic testing? I couldn't find anything in Asme B31.3. Any feedback is appreciated. Rgds, Brighton
  15. DiegoMartinez

    Corrosion probe sampling frequency

    Guys, Is there anyone who can provide a guideline on frequency of sampling of the corrosion probes at the plant inlet and slug catcher in a sweet natural gas plant? Thanks
  16. DiegoMartinez

    Heat Exchanger ttrip

    25362, Sorry I missed the question. I did a fair bit of work on this cooler and manufacturer advised to bridge the gap via using "Devcon-Titanium Putty". As I said, theliquid in the condensate cooler is mixture of hot Mono Ethylene Glycol and Condensate (155C). The first question: 1- Is there...
  17. DiegoMartinez

    Methanol, Glycol injection

    Weldsv1: Could you please rephrase "because of leaking it hydrated"? Do you mean you had a leak upstream of PCV and you had ice formation around it? Thanks
  18. DiegoMartinez

    Centrifugal Pump Condition Monitoring Standard

    By the way, in our plant the guys tend to run the main and spare pumps in a way that they have close total working hours at any specific time! Is it a good way of maintaining them?
  19. DiegoMartinez

    Centrifugal Pump Condition Monitoring Standard

    JJpelin & Svanels, Thanks guys for the interesting discussion. JJpelin, do you mean you run the spare pump for one day per calender month (every first thurseday of each months)? Svanels, I am interested to know about your operation protocol, obviously if possible. The thing is we are getting...
  20. DiegoMartinez

    Centrifugal Pump Condition Monitoring Standard

    JJPellin, You said: For machines which do not run, we take data a minimum of once every three months. This requires our operators to run their spares at least this often so we can get data. Could you expand it abit more? I'd like to know what your approach is to do vibration analysis on...
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