City of West Palm Beach eGovPlus

Plan Review Notes

Notes

Date	Text
2023-03-06 11:06:15	TO ANSWER YOUR QUESTION:

	[A] 102.1 GENERAL. WHERE THERE IS A CONFLICT BETWEEN A
	GENERAL
	REQUIREMENT AND A SPECIFIC REQUIREMENT, THE SPECIFIC
	REQUIREMENT SHALL BE APPLICABLE. WHERE, IN ANY SPECIFIC
	CASE,
	DIFFERENT SECTIONS OF THIS CODE SPECIFY DIFFERENT
	MATERIALS,
	METHODS OF CONSTRUCTION OR OTHER REQUIREMENTS, THE MOST
	RESTRICTIVE SHALL GOVERN.

	WHEN THERE ARE TWO MATERIALS BEING USED, THERE ARE TWO
	DIFFERENT TABLES. THE MORE RESTRICTIVE TABLE MUST BE
	USED. YOU CANNOT GET MORE FLOW FROM ONE SECTION OF PIPE
	AND LESS FLOW FROM ANOTHER SECTION OF PIPE AND
	EFFECTIVELY SIZE THE PIPING SYSTEM USING THE LONGEST
	RUN METHOD OR BRANCH METHOD. CSST HAS MORE FRICTION AND
	LOSS THAN METALLIC PIPE. USING THE SAME PRESSURRES AND
	PIPE SIZES SHOWS THAT CSST HAS LESS OUTPUT THAN
	METALLIC PIPE. YOU MUST USE THE MORE RESTRICTIVE TABLE.

	IT CONTINUES IN THE APPENDIX THAT EXPLAINS PIPE SIZING
	AND DESCRIBES ONLY USING "ONE LINE FROM ONE SIZING
	TABLE" FOR EACH SYSTEM (WHICH IS FROM REGULATOR TO
	REGULATOR).

	WITH THAT BEING SAID, USING TABLE 402.4(5), AT 125 FT
	(THE NEXT LINE CONSIDERING THE LONGEST RUN IS 120) THE
	MAXIMUM LOAD ALLOWED FOR 1/2" PIPE IS 414K BTU, AND YOU
	ARE RUNNING 689K BTU. REGARDLESS OF THE ABOVE
	MENTIONED, YOU ARE UNDERSIZED.