Part 14 Construction, Installation, Inspection and Maintenance of High Pressure Boilers; Construction of Unfired Pressure Vessels

(a) Boilers operating at pressures in excess of 100 psi and boilers not having a safe place of discharge shall be provided with blowoff tanks. The blowoff tanks shall be constructed in accordance with the provisions of the ASME Code, section VIII, division 1. (b) The outlet from …

(a) Every person attending a boiler shall be provided sufficient training to allow that person sufficient knowledge to operate the boiler in a safe and efficient manner. (b) The boiler operator shall keep a log for each shift that he is responsible for operating the boiler. That …

(a) All boilers hereafter installed with gas, oil or mechanical firing, shall be provided with an automatic low water fuel cutout of the manual reset type. All boilers installed after the effective date of this Part shall be provided with two automatic low water cutouts of the ma…

(a) Internally fired boilers having more than 50 square feet of heating surface shall be fitted with a fusible plug if required, in accordance with the ASME Code. (b) This provision shall not apply to boilers of the vertical tubular type or to dryback scotch type. The use of fusi…

The maximum allowable working pressure of a power boiler shall be determined in accordance with the ASME Code.

The exceptions in section 14-1.14(a) of this Subpart also apply to the following requirements: (a) Each automatically fired steam power boiler shall have at least one steam pressure control device that will shut off the fuel supply to each boiler when the steam pressure reaches a…

When an accident occurs which results in injury to persons, or results in property damage in excess of $1,000, the owner or operator of the boiler shall report the accident to the commissioner within 24 hours. If the accident results in death to a person or persons, or results in…

(a) All unfired pressure vessels purchased and installed on or after the first date of final promulgation of this section shall be constructed and stamped in accordance with section VIII of the ASME Code and registered with the National Board of Boiler and Pressure Vessel Inspect…

No high pressure boiler shall be operated until an internal and external inspection has been made by the commissioner or an insurance company. There shall be regular inspections of every boiler subject to the provisions of this Part made at intervals no less frequent than the fol…

(a) A certificate of inspection shall be issued for the operation of a boiler when the boiler is found upon inspection to comply in every respect with this Part. (b) No boiler shall be operated until a certificate of inspection has been issued. (c) The certificate of inspection s…

(a) No boiler shall be operated at a pressure in excess of the working pressure specified in the latest inspection certificate. Boilers of standard construction shall have an original factor of safety as determined by the ASME Code. (b) Standard boilers of lap seam construction s…

(a) No person shall remove or tamper with any safety appliance prescribed by this Part except for the purpose of making repairs. (b) No person shall in any manner load the safety valve to a greater pressure than allowed by the certificate of inspection.

(a) Numbers assigned to boilers by the commissioner shall be of metal and shall be securely attached to a metal plate. Such plate shall be securely attached to the front of the boiler or front of boiler setting. Such numbers shall be not less than two inches in height for power a…

(a) The owner or user of a portable boiler shall report the location of same to the commissioner or to the insurance company insuring such boiler 30 days prior to the expiration of the certificate of inspection. (b) No rebuilt portable boiler shall be operated unless the manufact…

A boiler showing any defect affecting its safety, shall be immediately discontinued from service and the Department of Labor and the insuring company shall be notified.

Any boiler that has been recommended for condemnation shall be immediately discontinued from service. The commissioner shall be promptly notified of such action and shall reinspect the boiler for final action. Boilers that have been condemned shall have distinctly stamped thereon…

The maximum allowable working pressure on the shell or drum of a boiler shall be determined by the strength of the weakest course computed from the thickness of the plate, the tensile strength of the plate, the efficiency of the longitudinal joint, or of the ligament between the …

The resistance to crushing of mild steel shall be taken at 95,000 pounds per square inch of the cross-sectional area.

When the diameter of the rivet holes in the longitudinal joints of a boiler is not known, the diameter and cross-sectional area of rivets, after driving, may be ascertained from Table X-1, or by cutting out one or more rivets in the body of the joint.

The safety valve capacity of each boiler shall be such that the safety valve or valves will discharge all the steam that can be generated by the boiler without allowing the pressure to rise more than six percent above the maximum allowable working pressure, or more than six perce…

One or more safety valves on every boiler shall be set at or below the maximum allowable working pressure. The remaining valves may be set within a range of three percent above the maximum allowable working pressure, but the range of setting of all of the valves on a boiler shall…

(a) Safety-valve capacity may be checked in any one of three different ways: (1) By making an accumulation test, that is, by shutting off all other steam-discharge outlets from the boiler and forcing the fires to the maximum. The safety-valve equipment shall be sufficient to prev…

When additional valve capacity is required, any valves added shall conform to the requirements in sections 14-9.4 through 14-9.15 of this Part.

Safety valve or valves shall be placed as close to the boiler as possible. No valve of any description shall be placed between the safety valve and the boiler, nor on the discharge pipe between the safety valve and the atmosphere. When a discharge pipe is used, it shall be not le…

No outlet connections, except for damper regulator, feedwater regulator, drains or steam gages, shall be placed on the pipes connecting a water column to a power boiler.

(a) Each boiler shall have a steam gage connected to the steam space or to the water column or to its steam connection. The steam gage shall be connected to a siphon or equivalent device of sufficient capacity to keep the gage tube filled with water and so arranged that the gage …

(a) The factor of safety for boilers of nonstandard construction installed prior to January 1, 1918, the longitudinal joints of which are of butt-and double-strap construction, shall be not less than 5.5 for boilers over 30 years old. (1) At the beginning of each five-year period…

(a) Each steam outlet from a power boiler (except safety-valve connections) shall be fitted with a stop valve located as close as practicable to the boiler. (b) When two or more boilers having manhole openings are connected to a common steam main, two stop valves with ample freeb…

(a) Each boiler shall have a blowoff pipe fitted with a valve or cock, in direct connection with the lowest water space practicable. (b) When the maximum allowable working pressure exceeds 100 pounds per square inch, the blowoff pipe shall be extra heavy from boiler to valve or v…

(a) The feed pipe of a steam boiler shall be provided with a stop valve or cock near the boiler and a check valve between the stop valve and source of supply and when two or more boilers are fed from a common source, there shall also be a valve on the branch to each boiler, betwe…

Each boiler fitted with a Lamphrey boiler furnace mouth protector, or similar appliance, having valves on the pipes connecting them to the boiler, shall have these valves locked or sealed open. Such valves, when used, shall be of the straightway type.

(a) When a hydrostatic test is applied the required test pressure shall be one and one-half times the maximum allowable working pressure. The pressure shall be under proper control so that in no case shall the required test pressure be exceeded by more than two percent. (b) Durin…

(a) The lowest factor of safety for boilers of the water-tube type of nonstandard construction installed prior to January 1, 1918, the longitudinal joints of which are of lap riveted construction shall be not less than the following: (1) 5 for boilers not over 20 years old; (2) 5…

(a) Secondhand boilers, when of the stationary type and used for stationary purposes only, shall be deemed secondhand only when both ownership and location are changed, and shall have a factor of safety of at least 5.5 when of buttstrap construction and a factor of safety of not …

The maximum allowable working pressure on water-tube boilers, the tubes of which are secured to cast-iron of malleable-iron headers, or which have cast-iron mud drums, shall not exceed 160 pounds per square inch.

Where a pressure of more than 15 pounds is found on a boiler for which exemption is claimed under the provisions of section 204 of the Labor Law or where a low pressure insurance policy is in force on such a boiler, the commissioner may order a safety valve or valves of the low p…

The shell or drum of a boiler in which a typical “lap seam crack” is discovered along a longitudinal riveted joint for either butt seam or lap joints shall be permanently discontinued for use under steam pressure. By “lap seam crack” is meant the typical crack frequently found in…

When the tensile strength of steel or wrought-iron shell plates is not known, it shall be taken at 55,000 pounds per square inch for steel and 45,000 pounds for wrought iron.

(a) Boilers to which the classification “miniature” applies are those which do not exceed the following limits: (1) 16 inches inside diameter of shell; (2) 5 cubic feet gross volume, exclusive of casing and insulation; (3) 20 square feet water heating surface; (4) 100 psi maximum…

Each steam line from a miniature boiler shall be provided with a stop valve located as close to the boiler shell or drum as is practicable, except when the boiler and steam receiver are operated as a closed system.

It is recommended that all boilers operated with gas, oil, or mechanical firing be provided with an automatic low water fuel cutout and/or with an automatic fuel regulating governor controlled by the steam pressure. Such a governor used on gas fuel shall be so constructed that in…