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10 Cards in this Set
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Section 601 potable water Green background with white lettering |
Each system shall be identified with a color pipe or band and coated with paint and materials compatible with the piping. The background color and required information should be indicated every 20 feet and not less than once per room and should be visible from the floor level. |
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See table 6 -1 Minimum length of color field and size of letters |
See table 6-2 Backflow prevention devices, assemblies and methods |
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Section 603 General requirements Backflow preventers for hot water exceeding 110 degrees should be a type designed to operate at temperatures exceeding 110 degrees without rendering any portion of the assembly inoperative. |
Water closet and urinal flushometer valve should be equipped with the atmospheric vacuum breaker. The vacuum breakers should be installed on the discharge side of the. Flushometer valve with the critical level not less than 6 inches, or the distance according to its listing, above the overflow rim of a water closet bowl or the highest part of a urinal. |
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Section 604.2 Copper tube for water piping should have a weight of not less than type L. Exception: Type M copper tubing should be permitted to be use for water piping when piping is above ground in, or on, a building or underground outside of structures. |
604.13 Water heater connections
PEX-AL-PEX OR PE-AL-PE shall not be installed within the first 18 inches of piping connected to a water heater |
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Table 6-4 Materials for building supply and water distribution piping and fittings |
Section 605 valves Valves used to control two or more openings should be full way gate valve, ball valves, or other approved valves designed and approved for the service intended. |
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Section 607 gravity supply tanks. Gravity tanks for potable water should be tightly covered, have not less than a 16 square inch overflow screened with copper screen having not less than 14 nor exceeding 18 openings per linear inch |
Section 608.2 excessive water pressure. Where static water pressure in the water supply piping is exceeding 80 pounds per square inch, an approved-type pressure regulator preceded by an adequate strainer should be installed and the static pressure reduced to 80 pounds per square inch or less. Pressure regulator equal to or exceeding one and one half inches should not require a strainer. Such regulators should control the pressure to all water outlets in the building unless otherwise approved by the authority having jurisdiction. |
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Section in 609.4 testing. Upon completion of a section or of the entire hot and cold water supply system, it should be tested and proved tight under a water pressure not less than the working pressure under which it is to be used. The water used for test should be obtained from a potable source of supply. Except for plastic piping, A 50 pound air pressure should be permitted to be substituted for the water test. In either method of test, the piping should withstand the test without leaking for a period of not less than 15 minutes |
Section 609.7 Provide additional space for a building supply when proper cause, transfer of ownership, or change of boundary not in violation of other requirements have first established the satisfaction of the Popo. The instrument recording such action should constitute an agreement with the Popo, which should clearly state and show that the areas so joinded or used should be maintained as a unit during the time they are so used. |
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Section 610-8 size of meter in building supply pipe using table 6-6 |
Table 6-6 fixture unit table for determining water pipe and meter sizes |
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Having located the proper fixture unit value for the required length, sizes of meter and building supply pipe as found in the two left hand colums should be applied. |
Table 6 - 7 Fixture units for water sizing using table 6-5 |
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Table 6-5 Water supply fixture units and minimum fixture branch pipe sizes |
Table 6-8 Sizing a residential water softeners |
