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  • Users: VoDich
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  1. VoDich

    Certificate of Compliance or MTR

    Do you guys typically request certificates of compliance (COC) or mill test reports (MTR) from the vendor to confirm that the pipes they want to use meet ASTM standards? Per specifications, the pipes need to meet ASTM A53/A53M for steel, and ASTM B88 for copper. These pipes will be used for...
  2. VoDich

    Boiler fuel oil return requirements

    I'm replacing a couple of 500 HP steam boilers that provide heating and domestic hot water for a campus in California. Main fuel is natural gas. Backup fuel is fuel oil #2 (diesel). I believe these boilers were installed in the late 80's. There is a large diesel storage tank with diesel...
  3. VoDich

    Pipe insulation and jacket in very humid environment

    I am looking to put insulation and jacket on chilled water piping (2 to 6 inches diameter), ductwork (30" diameter), and equipment (pumps, air handlers) located outdoors near coastal environment of Hawaii. I need help with selecting the right materials. My main goal are effectiveness and...
  4. VoDich

    sprinkler system water demand

    How does a FPE calculate the fire water demand for a building? For example, a Light Hazard building with 3200 s.f. Using a wet-pipe system and Density/Area Curves in NFPA 13, I'm coming up with 150 gpm (0.10*1500) as a minimum water demand for this building. Assuming hose streams are not...

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