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  1. yama21250

    Snuffing steam design

    Should there be any regard to condensate on a snuff steam line? does it matter if the branches come off the side of the snuff steam header? Is water hammer a concern? In my particular case I am talking about snuff steam going to ductwork on an oil seed extraction plant. Thanks, Brian
  2. yama21250

    Design of boiler blowdown piping

    Does boiler blowdown piping need to have sweep elbows (3 x radius) or double 45* elbows? I have some info from a boiler inspector requesting this on our blowdown piping but can not find any documentation to support this. Thanks!
  3. yama21250

    Use of Revit for detailed piping design

    We currently use AutoCAD Plant 3D for our piping design projects. There has been a big push to get our company to start using Revit a lot more for our other mechanical systems. It has also mentioned that we could start using Revit for our larger industrial piping projects. Does anyone have...
  4. yama21250

    Valve placement for maintenance

    I would say the two most common situations are valves up against a strainer and a shut off valve up against a check. (I realize the valve up against a check can be another discussion) We are constantly getting beat up for reducing our fitting counts and welds in our design. Although I see you...
  5. yama21250

    Valve placement for maintenance

    The contractor mentioned that in any case you shouldn't put valves back to back regardless of size, spec, pressure, etc. I see the point of getting pressure locked in between, therefore I understand why on a steam header you would want to space the valves (plus this allows the hand-wheels to be...
  6. yama21250

    Valve placement for maintenance

    A piping contractor recently made a comment on our piping saying that we should add a spool piece in between valves for "maintenance purposes". Has anyone else heard of this? If the valves allow I have always put them flange to flange to avoid extra pipe and fittings.

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