Section 408.4287. Shutoff valves prohibited.  


Latest version.

All data is extracted from pdf, click here to view the pdf.

  • Rule 287. No shutoff of any description shall be placed  between  the relief valve and the boiler, nor on discharge pipes between such valves and the atmosphere. Relief valves shall not be connected   to  an  internal pipe in the boiler.

History: 1979 AC.