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  1. valvespro

    CRN

    Examples of materials would be: A990-CN3MCu B367-TITANIUM GR 2 , GR 3, GR 7B, GR 12 B752-ZIRCONIUM GR 702C, 705C
  2. valvespro

    CRN

    Does anyone have experience at applying for a CRN (Canadian Registration Number) for Cat C valves that are B16.34 design but are made from a material that is not listed in B16.34? I know that there are two options: 1) Burst Proof Test witness by Third Party 2) Detailed engineering Calculations...
  3. valvespro

    Anybody familiar with SAMBO worm gearbox?

    I work for a valve manufacturer and we sell valves with Sambo gears on them. I have not experienced any difficulties with them and find that they are a good quality product. Attached is some info that I had on Sambo gears...not sure how old it is, but it might be of some help to...

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