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  • Users: Joesteam
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  1. Joesteam

    Valve Seat Hardness

    I am not very knowlegable in this area, so please be kind. I am working with specifying engineers and they have a grandfathered specification for stellited valve plugs and seats for 200 psig steam service (district steam = dirty & wet) as an overlay on 316 SS material. I have a valve with...
  2. Joesteam

    Glycerine in Boiler

    I'm working with a guy using a 30-40% glycerine solution directly in his fire tube hot water boiler. I have had to replace seals on the pumps due to grit in the system a number of times. I think the glycerine is burning on the tubes or there is some other type of reaction. There is also CPVC...
  3. Joesteam

    Air Intake for Boilers

    There is a boiler room with three new forced draft oil burning boilers (2 ea. 300 HP and 1 ea. 100 HP). I was asked to provide the air intake fan. These boilers will be sequenced according to laod. Any experience with modulating vs. single speed fans and sizing of the air intake system will...
  4. Joesteam

    Mild Steel for Domestic Hot Water

    We are to specify a centrifugal separator on the recirculation line on the domestic hot water system in a large building. This will take out large particulates in the water. Are there regulations against using a mild steel vessel on domestic water? The manufacturer makes one of stainless...
  5. Joesteam

    Superheated Steam Heat Transfer

    I need to figure out how much superheated steam is needed for my application. I have 120 psig steam at 400 Deg. F. I need to transfer 100,000 btu/hr with a maximum drop of 5 Deg. F of the steam. I can't seem to find a BTU/LB for just the vapor phase of the superheated steam. Any help would...

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