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Steam Backflow Valves

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bean
bean Member Posts: 34
in Strictly Steam
When working on steam boilers , what is the name of the anti-backflow valve I have found on the discharge of the boiler? How would I get more info on theses valves?

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  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,576
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    How about a picture?—NBC
  • bean
    bean Member Posts: 34
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    I am not on site at the this time . The last one I had seen was 6" & flanged.
  • Dale_3
    Dale_3 Member Posts: 58
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    Sometimes called non-return or stop check valves. Crane, Nibco or Lenkenheimer. Is this what your talking about?
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,524
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    Davis also makes them. Usually used on high pressure steam

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