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  1. bh1

    Corrosion resistance of 304SS to dilute 0.04% sulfuric acid

    I have read the stainless and sulfuric acid posts and looked at the references out of them. The charts and articles I have found seem vague at these low concentrations. In your opinions is 304L SS piping acceptable in a 0.04wt% sulfuric acid stream at 120 deg F? Are there any specific...
  2. bh1

    Single Boiler stop check valve required?

    We purchased a used boiler that came with both a stop check valve and a stop valve. We are going to install as the only boiler in the system and no other steam sources attached to the header. When reviewing ASME B31.1 - 2004 section 122.1.7 (A) specifically(A.3) it would appear that a stop...
  3. bh1

    Relief Valve required on Fuel Train?

    I have conflicting information on the requirment for a Pressure Safety Relief valve on the natural gas supply line after the regulator and before the automatic fuel shut off valves. Does anyone know which code lists that requirment? The piping between the reducing valve and the burner is...

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