NEW STANDPIPE RULES ADOPTED FOR THE CITY OF NEW YORK

NEW STANDPIPE RULES ADOPTED FOR THE CITY OF NEW YORK

Board of Standards and Appeals Formulates New Regulations—To Be Published in Their Entirety in These Columns

HEREWITH is concluded from the July 24 issue the new “Standpipe-Fire Line Rules” of New York City. The original rules were adopted by the Board of Standards and Appeals of that city on June 22, 1922, were amended July 20, 1923, and again on May 18, 1928. The finally adopted form as reproduced herewith, was adopted July 20, 1928. Through the courtesy of Chairman William E. Walsh, of the Board, FIRE ENGINEERING is enabled to publish the entire new rules serially.

These new rules are formulated largely through the efforts of Peter J. Maher, Fire Preventive Inspector attached to the Division of Fire Appliances of the New York Fire Department.

12. The word “STANDPIPE” shall be cast into the top of the body of the Siamese or on wall plate, in 1 in. letters not less than 1/8 of an inch in depth.

13. Where there is a fire boat Siamese connection in the same system with a land end Siamese connection, clapper valves shall be omitted from the land end Siamese.

Saving Clause. All rules and regulations previously adopted and conflicting with these rules are hereby rescinded.

WILLIAM E. WALSH, Chairman.

WILLIAM J. O’GORMAN, Secretary.

CODE OF ORDINANCES ARTICLE 28

Fire Extinguishing Appliances Section 580. General provisions.

Section 581. Standpipes.

Sec. 580. General provisions. Except as otherwise specifically provided in this article or by any law or ordinance, all buildings now existing or hereafter erected, shall be provided with such tanks, standpipes, automatic sprinklers, hose nozzles, wrenches, fire extinguishers, hooks, axes and such other appliances as may be required by and conforming to the rules of the fire commissioner, adopted or amended in the manner prescribed by this chapter for the rules of the superintendent of buildings.

Sec. 581. Standpipes. 1. Standpipes constructed and installed as hereinafter required and as prescribed in rules of the board of standards and appeals shall be provided:

  1. In every building now existing and exceeding eightyfive feet in height which is not already provided with a three-inch or larger standpipe.
  2. In every building hereafter erected or altered to exceed eighty-five feet in height.
  3. In every building exceeding 10,000 square feet in area, except in buildings specifically exempted in article 25 of this chapter and buildings of not more than one clerestory, in height not exceeding 15,000 square feet in area and occupied solely as places of religious worship; and except in fireproof buildings not over four stories or 45 feet in height when such buildings are equipped with an approved two-source supply automatic sprinkler system, and are not of an occupancy deemed unusually hazardous by the fire commissioner.
  4. In amusement or exhibition parks or enclosures when deemed necessary by the fire commissioner.
  5. In oil storage plants, shipyards, and other industrial plants of an area in excess of 10,000 square feet.

2. Size. Standpipes hereafter placed in any building shall be not less than four inches in diameter for buildings or parts thereof not exceeding one hundred and fifty feet in height, not less than six inches in diameter for buildings or parts thereof exceeding one hundred and fifty feet and not exceeding two hundred and fifty feet in height, and not less than eight inches in diameter for buildings or parts thereof exceeding two hundred and fifty feet in height.

3. Number and Location. The number of standpipes in any building shall be such that all parts of each story are within the reach of at least one stream supplied by hose not exceeding 100 feet in length.

When a building requiring standpipes faces on more than one street, at least one standpipe shall be installed for each street front, provided that for intersecting street fronts, one standpipe shall be sufficient for each intersection, when all portions of each area may be reached by a stream from 100 feet of hose. So far as practicable, standpipes shall be placed within stair enclosures otherwise they shall be as near the stair as possible. All standpipes shall extend from the lower story to and above the roof.

In buildings not exceeding 40 feet in height and not over 20,000 square feet in area gravity tank may be omitted provided the standpipe riser is supplied by not less than four-inch connection to street main having not less than 45 pound pressure.

4.Construction. All standpipes hereinafter installed shall be constructed as prescribed by the rules of the board of standards and appeals and shall be provided with such outlets and equipped with such appliances as required by said rules. All standpipes shall extend to the street and shall be provided with approved Siamese connections. In buildings not exceeding 45 feet in height, Siamese connections will not be required. Where there is more than one standpipe in any building, they shall be cross-connected in an approved manner below the sidewalk level, or, if there is no cellar, they shall be crossconnected below the ceiling of the basement or lowest story. (Amended June 24, 1924.)

NEW STANDPIPE RULES ADOPTED FOR THE CITY OF NEW YORK

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NEW STANDPIPE RULES ADOPTED FOR THE CITY OF NEW YORK

Board of Standards and Appeals Formulates New Regulations—To Be Published in Their Entirety in These Columns

HEREWITH is continued from the June 26 issue the new “Standpipe-Fire Line Rules” of New York City. The original rules were adopted by the Board of Standards and Appeals of that city on June 22, 1922, were amended July 20, 1923, and again on May 18, 1928. The finally adopted form as reproduced herewith, was adopted July 20, 1928. Through the courtesy of Chairman William E. Walsh, of the Board, FIRE ENGINEERING is enabled to publish the entire new rules serially.

Aeroplane Hangar Destroyed at Curtiss Field Apparatus from five villages could not control the blaze that succeeded in destroying the Rogers Air Lines hangar at Curtins Field, near Garden City. L. I. In this shed were major parts of twenty planes. The photograph was taken while the fire was at Its height.

These new rules are formulated largely through the efforts of Peter J. Maher, Lire Preventive Inspector attached to the Division of Fire Appliances of the Xew York Fire Department.

RILE 92. HOSE OUTLET Valve.—Hose outlet valves shall be 2½ in.

A—All hose outlet valves hereafter installed in buildings not exceeding 300 feet in height, or for the uppermost 300 feet in any building, shall conform to the following specifications:

  1. Valves shall have a clear waterway of at least 5 sq. in. in area.
  2. They shall show not more than 5 lbs. friction loss for a flow of 300 gallons per minute.
  3. They shall close tightly against 300 lbs. hydraulic pressure under normal working conditions.
  4. They shall stand a hydrostatic pressure test of 750 lbs. per sq. in. for 30 minutes and not distort.
  5. They shall stand the operation of full opening and closing 300 times under 150 lbs. pressure without leaking at stuffing box or seat.
  6. They shall not be of cast or malleable iron.
  7. Only angle globe valves shall be permitted.

B—Hose outlet valves hereafter installed in buildings exceeding 300 feet in height, except as provided for in Subdivision A, shall show not more than 5 lbs. friction loss for a How of 300 gallons per minute; they shall close tightly against 500 lbs. hydraulic pressure under normal working conditions ; they shall stand a hydrostatic test of 1,250 lbs. per square inch for 30 minutes and not distort; they shall stand the operation of full opening and closing ,300 times under 250 lbs. hydraulic pressure without leaking at stuffing box or seat. They shall be of brass or best grade of valve bronze.

Straight-way gate valves may be submitted for test.

All hose outlet valves hereafter installed shall have cast in the body of the valve:

  1. The manufacturer’s name or trade-mark.
  2. The working pressure of the valve.
  3. The approval number of the Board of Standards and Appeals.

Not less than 2 approved hose valves shall be delivered to the office of the Board of Standards and Appeals, the weight and other general matter noted, and valves certified. One of the valves shall then be delivered to the office of the Fire Commissioner, with certified specifications.

RULE 93. Specifications.—Siamese Connections. Fire Department Siamese connection shall be as hereinafter stated in this rule.

  1. The body of the Siamese may be of cast iron, cast steel, brass or any other suitable metals of sufficient strength to comply with Item 8 of this specification. All movable parts, clappers, swivels and all bolts, washers, nuts, screws and pin bearings and all swivel bearings shall be of non-corrodible metal.
  2. Clapper valve seats shall be made of non-corrodible metal and shall be machined to insure a tight seat for clapper valves.
  3. Each inlet to Siamese shall be provided with a clapper valve machined to a true face. Single clapper Siamese connections shall not be permitted.
  4. The inside diameter of valve seats shall not be less than the inside diameter of the hose couplings. The area of the waterway beyond the valve seats shall not be less than the combined areas of the waterways through the two valve seats. The area of the waterway of each inlet shall not be reduced by the clapper when in a position of maximum opening.
  5. Clappers shall be so hung that when Siamese connection is placed in a horizontal position the clappers will be seated.
  6. Swivels, attached to the body of the Siamese by means of a collar expanded cold or screwed into the body of the Siamese, or with other bearing surface extending entirely around the opening and exerting uniform shear, will be approved if giving a strength sufficient to meet Item 8.
  7. Clapper valves must be of such design and area that a pressure of 100 lbs. per sq. in. on the standpipe side will not prevent their opening when the pressure on the steamer side is 150 lbs. They must be so hung that with a discontinuance of flow into the Siamese through that inlet the valve will close, and that it will not close where there is an inward flow and the pressure on the inlet is 5 lbs. or more greater than the standnine pressure.
  8. Siamese connections must stand a hydraulic pressure test of 500 lbs. for 30 minutes under normal working conditions.
  9. Clapper valves shall be tight for any pressure on standpipe side up to 300 lbs.
  10. Approved caps or plugs must be provided to protect the threads of the inlets.
  11. The inlet swivels to Siamese connection shall be provided with threads to fit the Fire Department hose.

(To be continued)