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(a) On new buildings and on new construction no Fire Division hose connection or Siamese connection shall be constructed so as to project beyond the street or alley line.
(b) When the provisions of this Fire Prevention Code require the installation of standpipes or sprinklers in existing buildings or in connection with existing uses and occupancies, or when because of change of occupancy standpipes or sprinklers are to be installed in existing buildings, and when the installation of recessed hose connections or Siamese connections would result in undue hardship, the Commissioner of Building may approve Fire Division hose or Siamese connections installed so as to project not more than ten (10) inches beyond the street or alley line.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Each required four (4) inch or six (6) inch standpipe riser shall be equipped at each story level with a two and one-half (2-1/2) inch valved outlet with male threads conforming to Fire Division standard and suitable for the hose connection of the Division and located not more than five (5) feet above the floor level. Where first-aid hose is direct-coupled to such standpipes an approved reducing coupling may be installed with not more than seventy-five (75) feet of one and one-half (1-1/2) inch hose connected thereto. The two and one-half (2-1/2) inch valve provided for Division use shall control the water supplied to the first-aid hose.
(b) In addition to the two and one-half (2-1/2) inch valved outlet, where this Fire Prevention Code requires first-aid hose stations to be located in public hallways, corridors or spaces separate from the standpipe locations, a one and one-half (1-1/2) inch branch shall be extended from the standpipe riser to the hose station and equipped with an approved shut-off valve sealed open by an easily broken seal at the point of connection with the standpipe riser. A sign indicating the purpose of the branch and of the shut-off valve shall be permanently secured at or to the shut-off valve. Hose stations of such branches shall have one and one-half (1-1/2) inch hose valves and connections, with not more than seventy-five (75) feet of first-aid hose attached thereto. Threads on hose connections shall be male threads and shall conform to Division standard for one and one-half (1-1/2) inch hose.
(c) Where separate branch lines to first-aid hose stations are provided, and on dry standpipes, the two and one-half (2-1/2) inch valved Division connection shall have a suitable cap to protect the thread.
(d) Where deemed necessary by the Division because of the hazardous nature of penthouse occupancy or above roof uses, two and one-half (2-1/2) inch standpipe outlets shall be provided at the roof level.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Every wet standpipe required by this Fire Prevention Code shall be permanently connected to an approved primary source of water supply which will furnish water at each hose connection when the valve on the supply is open or automatically opened or, in special cases, when the valve on the supply is opened by the operation of suitably located thermostats. Such primary source shall provide a sufficient flow of water at the highest outlet and at any other outlet and shall be one (1) of the following:
(1) A direct connection to a City water main; provided that the Division of Water and Heat certifies that such main is capable, between 5:00 a.m. and 8:00 pm. on a normal working day, of maintaining a flowing pressure of at least fifteen (15) psi at the highest hose outlet when a street level hydrant supplied by the main, and located within two hundred fifty (250) feet of the connection, is discharging through two and one-half (2-1/2) inch open hydrant butt at the rate of five hundred (500) gallons per minute;
(2) A gravity tank of not less than five thousand (5,000) gallons capacity with bottom not less than twenty-five (25) feet above the standpipe outlet in the top story of the building. When the tank which supplies the standpipe system is also used for domestic water supply, the outlet to the domestic supply shall be placed sufficiently above the bottom of the tank to maintain a reserve of not less than five thousand (5,000) gallons for standpipe use. When a tank which supplies a standpipe system also supplies an automatic sprinkler system, the tank shall have a capacity of five thousand (5,000) gallons in excess of that required for sprinkler use. In the latter case, the connection of standpipe use shall be made to the upper part of the tank so that the tank will retain the required reserve for sprinkler use;
(3) A pressure tank of not less than four thousand five hundred (4,500) gallons capacity (three thousand three hundred (3,300) gallons of water) located in the top story or at a higher level of the building;
(4) Automatic pumps having a combined capacity of not less than two hundred fifty (250) gallons per minute.
(b) Wet standpipe installations with first-aid hose shall be designed on the basis of seventy (70) gallons per minute flowing simultaneously at any two (2) first- aid hose stations at a pressure not less than fifteen (15) psi.
(c) When the pressure at an outlet exceeds fifty (50) psi, an approved reducing disc, adjustable reducer or regulator, set to maintain a pressure of fifty (50) psi on the discharge side with a flow of two hundred (200) gallons per minute through two and one-half (2-1/2) inch hose and nozzle, shall be provided.
(d) Automatic pumps shall have an adequate source of power and shall be supplied from street mains or from well systems, or from other storage systems furnishing not less than one (1) hour’s supply at the rated capacity of the pumps.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Upon the completion of a standpipe installation, and at least once every two (2) years thereafter, every standpipe installation shall be tested in the presence of a representative of the Division of Fire assigned to witness such test.
(b) At the time of installation, standpipe systems shall be tested and proved tight at a hydrostatic pressure at least twenty-five percent (25%) in excess of the highest normal working pressure to which they will be subjected.
(c) Periodic tests thereafter on wet standpipes shall be made with hose provided by the Division and shall be flow tests made from the topmost outlet in the building.
(d) No periodic tests shall be required of dry standpipes, but these shall be regularly inspected to verify their availability for immediate use.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Required tanks shall be kept properly filled at all times and, where pressure tanks are employed, a pressure of at least seventy-five (75) psi shall be maintained at all times. Where necessary, tank heaters shall be provided and utilized to prevent freezing.
(b) All standpipe systems, pumps, tanks and other equipment shall be maintained in readiness for use at all times.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Where standpipe systems are required, in buildings more than four (4) stories in height, the standpipe installations shall be made as the building is erected and shall be available for the use of the Division of Fire beginning at the time when the floor construction at the fourth floor level is in place. From that time on, the standpipe installation shall never be more than one (1) story behind the construction of floors at levels above the fourth floor level. The standpipe equipment so provided may be either the permanent equipment or a temporary installation, and may be used for water supply for construction operations.
(b) The systems erected for use during construction shall include at least one (1) Siamese connection installed in an accessible location facing a street and connected to the standpipe riser or to the cross-connection serving standpipe risers, and two and one-half (2-1/2) inch valved outlets at each story level. Only dry standpipes for Division use shall be required. First-aid hose and branch connections to first-aid hose shall not be required for use during construction. Caps shall be provided and maintained at all open ends of the systems, except only while extensions or connections are being attached, and systems shall be ready for use at all times.
(c) Stairs shall be erected at or adjacent to standpipe riser locations, or other approved means for access of firemen to standpipe outlets shall be provided.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
(a) Whenever the height of a building exceeds six (6) stories or seventy-five (75) feet above grade level, an elevator manned by a competent person, or an automatic elevator, shall be available at all times to assist the Division of Fire in reaching any floor of the building.
(b) Whenever the construction of a building has progressed to a height of more than one hundred fifty (150) feet above grade level, at least one (1) elevator used for carrying passengers or workmen shall be kept in readiness at all times for use by the Division, and a competent person to operate the elevator shall be available at all times unless the elevator is equipped with such devices that it can be safely operated by the Division.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)
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