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  1. IQIeduardo

    Lined PTFE Valves

    Hello: I have been working lined valves for many year (PTFE, Tezfel, PFA and PP lined). A costumer is asking me GATE LINED VALVES, but more than a couple of vendors have told me that gate and globe valves are not manufactured with PTFE or PFA lining. (in fact they doesn´t exit) For my sorprise...
  2. IQIeduardo

    Selecting the right plastic

    well, all depend of fluids and chemical substances that you will manage may be this help you http://www.harringtonplastics.com/chemGuide.cfm Regards
  3. IQIeduardo

    FLANGES TYPE BARREL- full or heavy

    Hello I was requested about flanges type barrel, sincerly i never have heard about these type of flanges. 1) Do you know How are they like? What other name are called? Searching a little i found that there is two types: full barrel & heavy barrel 2) What´s the difference between them? This...
  4. IQIeduardo

    what does GRIDS mean??

    Hello: I am new in this, so i dont know if i did it well According with tubes & pipes, there a measure of POLISHING called GRIDS. What does it mean?? Where can i find something of that?? Is 150grids a hight grade of polish or low grade?? How can i estimate how many grids a process needs...

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