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Recent content by TomosSmith

  1. TomosSmith

    Nickel Aluminium Bronze

    Hi all, Does anyone have any experience/advice to share on the suitability of Nickel Aluminium Bronze as a material for valves handling raw Arabian Gulf seawater? Thanks as always, Tom
  2. TomosSmith

    Ductile Iron Performance in Arabian Gulf Seawater

    Hi All, I'm looking for some refereces/advice on the performance of Ductile Iron ASTM A536-GR60 in Arabian Gulf Seawater (high temperature, high salinity), as a material for valves and penstock gates. Thanks for your help. Tom
  3. TomosSmith

    NOVEC System Discharge Testing - Required?

    Thanks for the comments. Yes I'm going to try again with him. I also found references in the BS/EN/ISO standard and also an FM standard which recommends against the discharge test. Cheers, Tom
  4. TomosSmith

    NOVEC System Discharge Testing - Required?

    Hello, We have a couple of Novec systems installed in some server rooms on our project. We have installed the systems and completed the room inegrity tests and other checks in accordance with NFPA2001. However, our Divisional Fire Officer (AHJ) is insisting on a full discharge test to be...
  5. TomosSmith

    Water Hammer

    Hello, We're experiencing water hammer in a fire water network. The pump closed valve pressure is 15 bar, but when the pump is shut down, we experience an instantaneous pressure spike up to 21 bar (measured with a paper disk type pressure recorder). The spike happens when the swing check valve...
  6. TomosSmith

    Control of Marine Growth in Sea Water Cooling Process

    Hello, Can anyone offer any advice on methods of controlling marine growth for a sea water cooling system in the arabian gulf? I have reference of other projects in the region using hypochlorite injection systems. Can anyone provide the names of companies (with presence in the gulf region) who...
  7. TomosSmith

    Commissioning of Field Instrumentation

    JLSeagull - thanks, that's very helpful.
  8. TomosSmith

    Corrosion Inhibitors for Open Loop Sea Water Cooling Process

    Arabian Gulf seawater, and it's a near shore installation (on reclaimed land). Tom
  9. TomosSmith

    Corrosion Inhibitors for Open Loop Sea Water Cooling Process

    Hello, We are having some corrosion issues with Duplex stainless steel grade 2205 piping used in the Gulf region for a sea water cooling process. We are yet to find the root cause of the corrosion and are presently investigating if it is a welding problem, or a problem with the material...
  10. TomosSmith

    Commissioning of Field Instrumentation

    Hello, We have various field instrumentation, such as pressure, temperature and level switches/transmitters on our plant which have been installed but are yet to be tested and commissioned. Can anyone give me a few bullet points for general items that should be checked during the testing and...
  11. TomosSmith

    Testing and Commissioning of Instrumentation

    Hello, We have various field instrumentation, such as pressure, temperature and level switches and transmitters on our project which have been installed but are yet to be tested and commissioned. Can anyone give me a few bullet points for general items that should be checked during the testing...
  12. TomosSmith

    Secondary Containment for Chemical Delivery Vehicle Areas

    Thanks James & Latexman, If the chemicals spilled at the moment, they would drain into the storm drainage system. Can you refer to any specific environmental codes which give any guidance on the design of the spill containment area? How would I go about sizing a collection basin, would this...
  13. TomosSmith

    Secondary Containment for Chemical Delivery Vehicle Areas

    Hello, We have Outdoor storage of Hydrochloric Acid (10m3) and Sodium Hydroxide (10m3) on our project site for a water treatment process. The delivery vehicle for both chemicals has volume of 25m3.We have provided spill containment for the storage tanks themselves, but what I'm trying to...
  14. TomosSmith

    Spill Containment for Chemical Delivery Vehicle Areas - Help Please!

    Hello, We have Outdoor storage of Hydrochloric Acid (10m3) and Sodium Hydroxide (10m3) on our project site for a water treatment process. The delivery vehicle for both chemicals has volume of 25m3. We have provided spill containment for the storage tanks themselves, but what I'm trying to...

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