reglab/statecodes huggingface dataset:
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 3 - POWER BOILERS › Section 380:25-5-15 - Blowoff connection

Current through Vol. 41, No. 20, July 1, 2024
(a) The construction of the setting around each blowoff pipe shall permit free expansion and contraction. Careful attention shall be given to the problem of sealing these setting openings without restricting the movement of the blowoff piping.
(b) All blowoff piping, when exposed to furnace heat, shall be protected by fire brick or other heat resisting material. It shall be so constructed that the piping may be inspected readily.
(c) Each boiler shall have a blowoff pipe, fitted with a valve or cock, in direct connection with the lowest water space. Cocks shall be of the gland or guard type and suitable for the pressure allowed. The use of globe valves shall not be permitted. When the maximum allowable working pressure exceeds 100 psig, each blowoff pipe shall be provided with two valves or a valve and cock.
(d) When the maximum allowable working pressure exceeds 100 psig, blowoff piping shall be at least extra heavy steel from the boiler to the valve or valves, and shall be run full size without use of reducers or bushings. The piping shall not be galvanized.
(e) All fittings between the boiler and blowoff valve shall be of steel. In case of renewal of blowoff pipe or fittings, they shall be installed in accordance with the rules and regulations for new installations. See National Board recommended rules for Boiler Blowoff Equipment.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 3 - POWER BOILERS › Section 380:25-5-16 - Repairs and renewals of boiler fittings and appliances

Current through Vol. 41, No. 20, July 1, 2024
Whenever repairs are made to fittings or appliances, or it becomes necessary to replace them, the work shall comply with the requirements for new installations. Galvanized pipe or fittings shall not be used as replacement parts.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 3 - POWER BOILERS › Section 380:25-5-17 - Conditions not covered by these requirements

Current through Vol. 41, No. 20, July 1, 2024
All cases not specifically covered by these requirements shall be treated as new installations or may be referred to the Chief Boiler Inspector for instructions concerning the requirements.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-21 - Standard boilers

Current through Vol. 41, No. 20, July 1, 2024
The maximum allowable working pressure of standard boilers shall in no case exceed the pressure indicated by the manufacturer's identification stamped or cast on the boiler or on a plate secured to it.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-22 - Non-standard riveted boilers

Current through Vol. 41, No. 20, July 1, 2024
The maximum allowable working pressure on the shell of a non- standard riveted heating boiler shall be determined in accordance with Section 380:25-5-7, Power Boilers, except that in no case shall the maximum allowable working pressure of a steam heating boiler exceed 15 psig, or a hot water boiler exceed 160 psig or 250 °F.temperature.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-23 - Non-standard welded boilers

Current through Vol. 41, No. 20, July 1, 2024
The maximum allowable working pressure of a non-standard steel or wrought iron heating boiler of welded construction shall not exceed 15 psig for steam. For other than steam service, the maximum allowable working pressure shall be calculated in accordance with Section IV of the ASME Code, but in no case shall it exceed 30 psig.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-24 - Non-standard cast iron boilers

Current through Vol. 41, No. 20, July 1, 2024
(a) The maximum allowable working pressure of a non-standard boiler composed principally of cast iron shall not exceed 15 psig for steam service or 30 psig for hot water service.
(b) The maximum allowable working pressure of a non-standard boiler having cast iron shell or heads and steel or wrought iron tubes shall not exceed 15 psig for steam service or 30 psig for hot water service.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-26 - Steam gages

Current through Vol. 41, No. 20, July 1, 2024
(a) Each steam boiler shall have a steam gage connected to its steam space, its water column, or its steam connection, by means of a siphon or equivalent device exterior to the boiler. The siphon shall be of sufficient capacity to keep the gage tube filled with water and so arranged that the gage cannot be shut off from the boiler except by a cock with a tee or lever handle placed in the pipe near the gage. The handle of the cock shall be parallel to the pipe on which it is located when the cock is open.
(b) The scale on the dial of a steam gage shall be graduated to not less than 30 psig or more than 60 psig. The gage shall be provided with effective stops for the indicating pointer at the zero point and at the maximum pressure point. The travel of the pointer from zero to 30 psig pressure shall be at least 3 inches.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-27 - Pressure/altitude gages, and pressure/temperature controls

Current through Vol. 41, No. 20, July 1, 2024
(a) Each hot water boiler shall have a pressure or altitude gage connected to it or to its flow connection in such a manner that it cannot be shut off from the boiler except by a cock with a tee or lever handle placed on the pipe near the gage. The handle of the cock shall be parallel to the pipe in which it is located when the cock is open.
(b) The scale on the dial of the pressure or altitude gage shall be graduated approximately to not less than 1.5 nor more than 3 times the set pressure of the safety relief valve.
(c) Piping or tubing for pressure or altitude gage connections shall be of nonferrous metal when smaller than 1 inch pipe size.
(d) Each hot water boiler shall have a thermometer so located and connected that it shall be easily readable when observing the water pressure or altitude gage. The thermometer shall be so located that it will at all times indicate the temperature in degrees Fahrenheit of the water in the boiler at or near the outlet.
(e) Each automatically fired steam boiler shall be protected from over-pressure by two pressure-operated controls.
(1) Each individual automatically fired steam boiler shall have a safety limit control that will cut off the fuel supply to prevent steam pressure from exceeding the 15 psi maximum allowable working pressure of the boiler. Each control shall be constructed to prevent a pressure setting above 15 psi.
(2) Each individual steam boiler or each system of commonly connected steam boilers shall have a control that will cut off the fuel supply when the pressure reaches an operating limit, which shall be less that the maximum allowable pressure.
(3) Shutoff valves of any type shall not be placed in the steam pressure connection between the boiler and the controls described in (1) and (2) above. These controls shall be protected with a syphon or equivalent means of maintaining a water seal that will prevent steam from entering the control. The connections to the boiler shall not be less that 1/4 inch standard pipe size, but where steel or wrought iron pipe or tubing is used, they shall not be less than 1/2 inch standard pipe size. The minimum size of a syphon shall be 1/4 inch standard pipe size of 3/8 inch O.D. nonferrous tubing.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-28 - Water gage glasses

Current through Vol. 41, No. 20, July 1, 2024
(a) Each steam boiler shall have one or more water gage glasses attached to the water column or boiler by means of valved fittings. The lower fitting shall be provided with a drain valve of the straightway type with opening not less than 1/4 inch diameter to facilitate cleaning. Gage glass replacement shall be possible while the boiler is under pressure.
(b) Transparent material, other than glass, may be used for the water gage provided that material has proved suitable for the pressure, temperature and corrosive conditions encountered in service.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-29 - Stop valves and check valves

Current through Vol. 41, No. 20, July 1, 2024
(a) If a boiler may be closed off from the heating system by closing a steam stop valve, there shall be a check valve in the condensate return line between the boiler and the system.
(b) If any part of a heating system may be closed off from the remainder of the system by closing a steam stop valve, there shall be a check valve in the condensate return pipe from that part of the system.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-30 - Feedwater connections

Current through Vol. 41, No. 20, July 1, 2024
(a) Feedwater, make-up water, or water treatment shall be introduced into a boiler through the return piping system or through an independent feedwater connection which does not discharge against parts of the boiler exposed to direct radiant heat from the fire. Feedwater, make-up, or water treatment shall not be introduced through openings or connections provided for inspection or cleaning, safety valve, safety relief valve, surface blowoff, water column, water gage glass, pressure gage or temperature gage.
(b) Feedwater pipe shall be provided with a check valve near the boiler and a stop valve or cock between the check valve and the boiler or return pipe system.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-31 - Return pump

Current through Vol. 41, No. 20, July 1, 2024
Each boiler equipped with a condensate return pump shall be provided with a water level control arranged to automatically maintain the water level in the boiler within the range of the gage glass.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-32 - Repairs and renewals of fittings and appliances

Current through Vol. 41, No. 20, July 1, 2024
Whenever repairs are made to fittings or appliances, or it becomes necessary to replace them, the repairs must comply with Section IV of the ASME Code for new construction.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 5 - HEATING BOILERS › Section 380:25-5-33 - Provisions for thermal expansion in hot water systems

Current through Vol. 41, No. 20, July 1, 2024
(a) Each water heating system shall be provided with thermal expansion protection. Provisions for thermal expansion shall be in accordance with the applicable Codes and these rules.
(b) Expansion tanks for use in hot water heating systems shall be consistent with the volume and capacity of the system. If the system is designed to operate at 30 psi or less, the tank shall be suitably designed for a minimum hydrostatic test pressure of 75 psi. Expansion tanks for systems designed to operate above 30 psi shall be constructed in accordance with ASME Code Section VIII Division I, or ASME Code Section X.
(c) The minimum capacity of the closed type expansion tank may be determined using the chart in Appendix A.
Added at 19 Ok Reg 2788, eff 11-1-02
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-36 - Maximum allowable working pressure for standard pressure vessels

Current through Vol. 41, No. 20, July 1, 2024
The maximum allowable working pressure for standard pressure vessels shall be determined in accordance with the applicable provisions of the edition of the ASME Code or the API-ASME Code under which they were constructed and stamped or the latest edition of the ASME Code.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-37 - Maximum allowable working pressure for non- standard pressure vessels, except as provided in section 380:25-5-38

Current through Vol. 41, No. 20, July 1, 2024
(a) The maximum allowable working pressure of a non-standard pressure vessel shall be determined by the strength of the weakest course computed from thickness of the plate, the tensile strength of the plate, the efficiency of the longitudinal joint, the inside diameter of the course and the factor of safety set by this Chapter.
= maximum allowable working pressure, psi
where:
TS
=
ultimate tensile strength of shell plate, psi (When the tensile strength of carbon steel plate is not known, it may be taken as 55,000 psig for temperatures not exceeding 650 degrees F. For other materials use the lowest stress values for that material from Section VIII of the ASME Code)
t
=
minimum thickness of shell plate of weakest course, inches
E
=
efficiency of longitudinal joint depending upon construction
Use the following values:
for riveted joints - calculated riveted efficiency; for fusion-welded and brazed joints:
Percent
Single lap weld
40
Double lap weld
50
Single butt weld
60
Double butt weld
70
Forge weld
70
Brazed steel
80
R
=
inside radius of weakest course of shell, (inches) provided the thickness does not exceed 10% of the radius. If the thickness is over 10% of the radius, the outer radius shall be used.
FS
=
factor of safety allowed by these rules.
(b) The minimum factor of safety shall in no case be less than four (4) for existing installations. The working pressure shall be decreased, using the applicable code as a guideline, when deemed necessary by the Inspector to insure the operation of the vessel within safe limits. The condition of the vessel and the particular service to which it is subject will be determining factors.
(c) The maximum allowable working pressure permitted to formed heads under pressure shall be determined by using the appropriate formulas from ASME Code, Section VIII, and the tensile strength and factors of safety given in Paragraphs 1 and 2(a)&(b).
(d) The maximum allowable working pressure for non-standard pressure vessels subjected to external pressure shall be determined by the rules of Section VIII of the ASME Code.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-38 - Non-standard pressure vessels - use of other formulas

Current through Vol. 41, No. 20, July 1, 2024
Pressure vessels that were not ASME Code stamped but which were constructed of known materials and were designed and constructed in accordance with sound engineering standards, formulas, and practices that provide safety equivalent to the intent of the Code shall be calculated on the same basis as used in the original design.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-39 - Inspection of inaccessible parts

Current through Vol. 41, No. 20, July 1, 2024
Where in the opinion of the Inspector, as a result of conditions disclosed at the time of inspection, it may be necessary to remove interior or exterior lining, covering, or brickwork to expose certain parts of the vessel not normally visible, the owner or user shall remove such material to permit proper inspection and to determine remaining thickness.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-40 - Overpressure protection

Current through Vol. 41, No. 20, July 1, 2024
Each pressure vessel or pressure vessel system shall be provided with safety, relief, indicating, and controlling devices as necessary to protect against overpressure. These devices shall be so constructed, located, and installed that they cannot readily be rendered inoperative. The relieving capacity of such pressure relief devices shall be adequate to prevent a rise in pressure in the vessel or system of more than 10% above the highest pressure to which any pressure relieving device is set and in no case more than 16% above the maximum allowable working pressure. The opening pressure of the lowest set pressure relieving device shall be no greater than the maximum allowable working pressure of the vessel or system. Where an additional hazard is involved due to fire or other unexpected sources of external heat, the pressure relief devices shall meet the requirements of ASME Code Section VIII.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 5 - Existing Installations › Part 7 - PRESSURE VESSELS › Section 380:25-5-41 - Repairs and renewals of fittings and appliances

Current through Vol. 41, No. 20, July 1, 2024
Whenever repairs are made to fittings and appliances or it becomes necessary to replace them, the work must comply with the requirements for new installations.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-1 - Inspection of boilers and pressure vessels

Current through Vol. 41, No. 20, July 1, 2024
All boilers and pressure vessels not exempted by the Act or by rules and regulations promulgated under the Act and which are subject to regular inspections, shall be prepared for such inspections as required in Section 380:25-7-2.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-2 - Preparation for inspection

Current through Vol. 41, No. 20, July 1, 2024
The owner or user shall prepare each boiler or pressure vessel for inspection, and shall prepare for and apply a hydrostatic or pressure test, whenever necessary, on the date arranged by the Inspector which shall not be less than seven (7) days after the date of notification.
(1) Boilers. The owner or user shall prepare a boiler for internal inspection in the following manner:
(A) Water shall be drawn off and the boiler washed thoroughly;
(B) Manhole and handhole plates, washout plugs and inspection plugs in water column connections shall be removed as required by the Inspector. The furnace and combustion chambers shall be cooled and thoroughly cleaned;
(C) All grates of internally fired boilers shall be removed;
(D) Insulation or brickwork shall be removed as required by the Inspector in order to determine the condition of the boiler, headers, furnace, supports or other parts;
(E) The pressure gage shall be removed for testing, as required by the Inspector;
(F) Any leakage of steam or hot water into the boiler shall be prevented by disconnecting the pipe or valve at the most convenient point or any appropriate means approved by the Inspector;
(G) Before opening the manhole or handhole covers and entering any parts of the steam generating unit connected to a common header with other boilers, the nonreturn and steam stop valves must be closed, tagged, and preferably padlocked, and drain valves or cocks between the two valves opened. The feed valves must also be closed, tagged, and preferably padlocked, and drain valves or cocks located between the two valves opened. After draining the boiler, the blowoff valve shall be closed, tagged and preferably padlocked. Blowoff lines, where practicable, shall be disconnected between pressure parts and valves. All drains and vent lines shall be opened.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-3 - Boilers and pressure vessels improperly prepared for inspection

Current through Vol. 41, No. 20, July 1, 2024
If a boiler or pressure vessel has not been properly prepared for an internal inspection, or if the owner or user fails to comply with the requirements for a pressure test as set forth in these rules, the Inspector may decline to make the inspection or test and the Certificate of Operation may be withheld or right to operate revoked, until the owner or user complies with the requirements.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-4 - Removal of covering to permit inspection

Current through Vol. 41, No. 20, July 1, 2024
If the boiler or pressure vessel is jacketed so that the longitudinal seams of shells, drums or domes cannot be seen, sufficient jacketing, setting wall, or other form of casing or housing shall be removed, if evidence warrants, to permit reasonable inspection of the seams and other areas necessary to determine the condition and safety of the boiler or pressure vessel, provided such information cannot be determined by other means.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-5 - Lap seam crack

Current through Vol. 41, No. 20, July 1, 2024
The shell or drum of a boiler or pressure vessel, in which a lap seam crack is discovered along a longitudinal riveted joint, shall be immediately discontinued from use. Patching is prohibited. (By lap seam crack is meant a crack found in lap seams, extending parallel to the longitudinal joint and located either between or adjacent to rivet holes).
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-6 - Pressure tests

Current through Vol. 41, No. 20, July 1, 2024
(a) A hydrostatic pressure test, when applied to boilers or pressure vessels, shall not exceed 1.5 times the maximums 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 6%
(b) During a hydrostatic test the safety valves shall be removed or each valve disk shall be held to its seat by means of a testing clamp and not by screwing down the compression screw upon the spring. A plug device designed for this purpose may be used.
(c) The minimum temperature of the water used to apply a hydrostatic test shall be not less than 60° F, but the maximum temperature during inspection shall not exceed 120° F.
(d) When a hydrostatic test is applied to determine tightness, the pressure shall be equal to the normal operating pressure but need not exceed the release pressure of the safety valve having the lowest release setting.
(e) When the contents of the vessel prohibit contamination by any other medium or when a hydrostatic test is not possible, other testing media may be used providing the precautionary requirements of the applicable section of the ASME Code are followed. In such cases, there shall be agreement between the owner, the Inspector, and the jurisdiction.
Amended at 16 Ok Reg 3017, eff 7-12-99
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-7 - Automatic low water fuel cutoff and/or water feeding device

Current through Vol. 41, No. 20, July 1, 2024
(a) Each automatically fired steam vapor system boiler shall be equipped with two automatic low water fuel cutoff so located as to automatically cut off the fuel supply when the surface of the water falls to the lowest safe water line. The lowest connected water fuel cutoff shall provide safety shutdown and lockout with a manual reset. Each automatically fired hot water heating and/or supply boiler shall be equipped with an automatic low water fuel cut off and/or flow sensing device as required by the ASME Boiler and Pressure Vessel Code and this Act. If a water feeding device is installed, it shall be so constructed that the water inlet valve cannot feed water into the boiler through the float chamber and so located as to supply requisite feedwater. The lowest safe waterline should not be lower than the lowest visible part of the water glass or as otherwise permitted by the applicable ASME Code.
(b) Such fuel or feed water control device may be attached directly to a boiler or for low pressure boilers to the tapped openings provided for attaching a water glass directly to a boiler, provided that such connections from the boiler are nonferrous tees or Y's not less than 1/2 inch pipe size between the boiler and the water glass, so that the water glass is attached directly and as close as possible to the boiler: the straightway tapping of the Y or tee to take the water glass fittings, the side outlet of the Y or tee to take the fuel cut off or water feeding device. The ends of all nipples shall be reamed to full size diameter.
(c) Designs embodying a float and float bowl shall have a vertical straight away valve drain pipe at the lowest point in the water equalizing pipe connections by which the bowl and the equalizing pipe can be flushed and the device tested.
Amended at 16 Ok Reg 3017, eff 7-12-99
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-8 - Pressure reducing valves

Current through Vol. 41, No. 20, July 1, 2024
(a) Where pressure reducing valves are used, one or more safety or safety relief valves shall be provided on the low pressure side of the reducing valve when the piping or equipment on the low pressure side does not meet the requirements for the full initial pressure. The safety or safety relief valve shall be located adjoining or as close as possible to the reducing valve. Proper protection shall be provided to prevent injury or damage caused by the escaping fluid from the discharge of safety or safety relief valves if vented to the atmosphere. The combined discharge capacity of the safety or safety relief valves shall be such that the pressure rating of the lower pressure piping or equipment shall not be exceeded in case the reducing valve fails in the open position.
(b) The use of hand controlled bypasses around the reducing valves is permissible. If a bypass is used around the reducing valve, the safety valve required on the low pressure side shall be of sufficient capacity to relieve all the fluid that can pass through the bypass without over pressuring the low pressure side.
(c) A pressure gage shall be installed on the low pressure of a reducing valve.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-9 - Boiler blowoff equipment

Current through Vol. 41, No. 20, July 1, 2024
(a) The blowdown from a boiler or boilers that enters a sanitary sewer system or blowdown which is considered a hazard to life or property shall pass through some form of blowoff equipment that will reduce pressure and temperature as required hereinafter.
(b) All blowoff equipment shall be fitted with openings to facilitate cleaning and inspection.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-10 - Location of discharge piping outlets

Current through Vol. 41, No. 20, July 1, 2024
The discharge of safety valves, blowoff pipes and other outlets shall be located and supported so as to prevent injury to personnel.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-11 - Repairs or alterations

Current through Vol. 41, No. 20, July 1, 2024
Where repairs or alterations are necessary, an Inspector shall be called for consultation and advice as to the best method of making such repairs or alterations. After such repairs or alterations are made, they shall be reviewed by and found acceptable to an Inspector. Organizations making repairs or alterations shall be qualified in accordance with the Act and this Chapter.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-12 - Supports

Current through Vol. 41, No. 20, July 1, 2024
Each boiler and pressure vessel shall be supported by masonry or structural supports of sufficient strength and rigidity to safely support the boiler or pressure vessel and its contents. There shall be no excessive vibration in either the boiler, pressure vessel or its connecting piping.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-13 - Boiler door latches

Current through Vol. 41, No. 20, July 1, 2024
(a) A watertube boiler shall have the firing doors of the inward opening type, unless such doors are provided with substantial and effective latching or fastening devices or otherwise so constructed as to prevent them when closed, from being blown open by pressure on the furnace side.
(b) These latches or fastenings shall be of the positive self locking type. Friction contacts, latches, or bolts actuated by springs shall not be used. The foregoing requirements for latches or fastenings shall not apply to coal openings of downdraft or similar furnaces.
(c) All other doors, except explosion doors, not used in the firing of the boiler, may be provided with bolts or fastenings in lieu of self locking latching devices.
(d) Explosion doors, if used and if located in the setting walls within seven (7) feet of the firing floor or operating platform, shall be provided with substantial deflectors to divert the blast.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-14 - Clearance

Current through Vol. 41, No. 20, July 1, 2024
When boilers are replaced or new boilers are installed in either existing or new buildings, a minimum of at least three (3) feet shall be provided between all sides of the boiler and adjacent walls or other structures. Boilers and pressure vessels having manholes shall have five (5) feet clearance from the manhole opening and any wall, ceiling or piping that will prevent a person from entering the boiler or vessel. Marine type boilers shall have a clearance from the floor level to the bottom of the shell plate of not less than eighteen (18) inches. All boilers and pressure vessels shall be so located that adequate space will be provided for the proper operation of the boilers and pressure vessels and their appurtenances, for the inspection of all surfaces, tubes, waterwalls, economizers, piping, valves and other equipment, and for their necessary maintenance and repair and replacement of tubes.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-15 - Ladders and runways

Current through Vol. 41, No. 20, July 1, 2024
When necessary for safety, there shall be a steel runway or platform of standard construction installed across the tops of adjacent boilers or pressure vessels or at some other convenient level for the purpose of affording safe access. When practical, all walkways shall have at least two means of exit, each to be remotely located from the other.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-16 - Exit from boiler

Current through Vol. 41, No. 20, July 1, 2024
All boiler rooms exceeding 500 square feet floor area and containing one or more boilers having a fuel burning capacity of 1,000,000 BTU, or equivalent electrical heat input, shall have at least two means of exit. Each exit shall be remotely located from the other. Each elevation in such boiler room shall have two means of exit, each remotely located from the other.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-17 - Operation and maintenance

Current through Vol. 41, No. 20, July 1, 2024
All boilers, pressure vessels, water heaters, and other pressure retaining items subject to the provisions of this act shall be operated and maintained in accordance with the original manufacturer's recommendations and instructions. If the original manufacturer's maintenance and operating instructions and recommendations do not exist, the applicable Recommended Rules for Care of Power Boilers, Section VII and the applicable Recommended Rules for Care and Operation of Heating Boilers, Section VI of the ASME Code shall be used as a guide for proper and safe maintenance and operation.
Amended at 19 Ok Reg 2788, eff 11-1-02
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-18 - Air and ventilation requirements - combustion air supply and ventilation of boiler room

Current through Vol. 41, No. 20, July 1, 2024
(a) A permanent source of combustion and ventilation air, as required by the National Fire Protection Association's National Fuel Gas Code, NFPA 54, latest revision, shall be provided for each boiler room to permit satisfactory combustion of the fuel as well as proper ventilation of the boiler room under normal operating conditions.
(b) The total requirements of the burners for all fired boilers and pressure vessels, as well as any air required for the operation of other equipment located in the boiler room, including air compressors, clothes dryers, exhaust fans, water heaters, and central heating units must be used to determine the total area, in square feet, in inlet air opening or openings required for the boiler room or machinery room.
(c) When mechanical ventilation is used, the supply of combustion and ventilation air to the boiler room and the firing device shall be interlocked with the fan so the firing device will not operate with the fan off. The velocity of the air through the ventilating fan shall not exceed 500 feet per minute and the total air delivered shall be equal to or greater than required by (a) of this Section. When a specially engineered system is to be used in supplying combustion and ventilation air to a boiler room or machinery room, such system shall be approved by the chief boiler inspector prior to its installation and use.
(d) Existing installations that complied with previously accepted standards of the Oklahoma Boiler and Pressure Vessel Safety Act and Boiler and Pressure Vessel Rules are deemed to be satisfactory until such time that it becomes necessary to repair or replace such combustion air supply system or components. When repair and/or replacement is required, such repairs and/or installations shall be performed in accordance with the requirements for new installations.
Amended at 16 Ok Reg 3017, eff 7-12-99; Amended at 23 Ok Reg 1410, eff 5-25-06
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 7 - General Requirements › Section 380:25-7-19 - Conditions not covered by these rules and regulations

Current through Vol. 41, No. 20, July 1, 2024
For any conditions not covered by these requirements, the applicable provisions of the ASME Code or the American Petroleum Institute Pressure Vessel Inspection Code or the National Board Inspection Code, the Chief Boiler Inspector shall be contacted.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 9 - Downstream Welded Steam Lines › Section 380:25-9-1 - Welding requirements

Current through Vol. 41, No. 20, July 1, 2024
Fabrication by welding shall be performed by welders certified as such by the Labor Department. Out of state shop welding shall be performed by welders certified as required by Section IX of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code. On site documentation shall be made available to the Chief or Deputy Inspectors.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 9 - Downstream Welded Steam Lines › Section 380:25-9-2 - Inspection

Current through Vol. 41, No. 20, July 1, 2024
Inspection shall include but not be limited to visual inspection of welds and welders stencil on or near the weld, evidence of leaks and a review of documentation.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 9 - Downstream Welded Steam Lines › Section 380:25-9-3 - Construction codes available

Current through Vol. 41, No. 20, July 1, 2024
The construction standard used for fabrication shall be available on site for review by the Chief or Deputy Inspectors.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 9 - Downstream Welded Steam Lines › Section 380:25-9-4 - Owner/user inspection

Current through Vol. 41, No. 20, July 1, 2024
Downstream welded steamlines owned and/or operated by approved owner/user inspection agencies may be inspected, as required by this section, by their owner/user inspectors provided provisions for this inspection are outlined in the inspection procedures of such owner/user inspection agency.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 11 - Hot Water Supply Heaters Minimum Inspection Criteria › Section 380:25-11-1 - General criteria

Current through Vol. 41, No. 20, July 1, 2024
(a) Hot water supply heaters located in facilities or installations owned or operated by the State of Oklahoma or its agencies, counties, municipalities, or school districts will be externally inspected annually, regardless of size or heat input. All hot water supply heaters shall meet the requirements of the code adopted by the facility being inspected.
(b)
Scope of inspection
(1) Gas supply line - From the vessel through any controls upstream to the required stop cock.
(2) Electrical connections - From the vessel to the required electrical cutoff, not to include any permanent wiring installed within the walls of the building containing the unit.
(3) Cold water inlet line - From the vessel upstream to the required stop valve.
(4) Hot water outlet line - From the vessel up to and including the second fitting.
(5) Exhaust vents - All venting or flue piping visible from the hot water supply heater.
(6) Combustion air supply - Any venting necessary to support combustion for flame heated units.
(7) General hazards - Any recognized safety hazard involving the hot water supply heater within the immediate area.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-1 - General

Current through Vol. 41, No. 20, July 1, 2024
(a) All businesses, firms or corporations engaged in the service, repair and/or installation of boilers or pressure vessels as required by Title 40 Section 141.6 of the Oklahoma Boiler and Pressure Vessel Safety Act shall be licensed by the Department of Labor.
(b) All persons engaged in the profession of service, repair and/or installation of boilers or pressure vessels, whether working individually or in the employ of a business, firm or corporation licensed as required by Title 40, Section 141.6 of the Oklahoma Boiler and Pressure Vessel Safety Act, shall be required to pass a written examination administered by the Department of Labor, except that unlicenced persons may assist in the repair, service and installation of boilers and pressure vessels when under the direct supervision of a licensed individual. Except, that those licensed professionals that may be assisting in the installation of a boiler or pressure vessel in a limited capacity, such as certified welders, licensed electricians, etc., shall not be required to possess a boiler installers license.
(c) These rules shall not be construed as in any way preventing the owner or user of any boiler or pressure vessel from performing minor repairs and maintenance to boilers and pressure vessels under his or her control, providing that all such minor repairs and maintenance are in accordance with the provisions of this Act. Additionally, as regards owner user inspection agencies, routine repairs and maintenance may be determined by the authorized inspector.
Amended at 10 Ok Reg 3075, eff 6-25-93; Amended at 19 Ok Reg 2788, eff 11-1-02
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-2 - Application for license

Current through Vol. 41, No. 20, July 1, 2024
(a) An application for the service, repair and/or installation of boilers or pressure vessels shall be on forms provided by the Department of Labor and shall give evidence of the applicants past experience within the scope of the license requested, and shall give evidence of their workmanship and skills which would qualify them for the license requested.
(b) The Chief Boiler Inspector may request an interview with the applicant prior to the issuance of a license.
(c) The desired scope of license shall be listed on the application for the authorization requested.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-3 - Qualification for welding, effective January 1, 1989

Current through Vol. 41, No. 20, July 1, 2024
Any applicant requesting authorization to weld within the scope applied for shall have one of the following types of qualifications in addition to the license required by this act.
(1) American Society of Mechanical Engineers Certificates of Authorization. An organization in possession of a valid ASME Certificate of Authorization may perform repairs to boilers and/or pressure vessels provided such repairs are within the scope of the organizations quality control system.
(2) National Board Certificates of Authorization. Repairs to boilers and/or pressure vessels may be performed by an organization in possession of a valid Certificate of Authorization for use of the "R" symbol stamp, issued by the National Board of Boiler and Pressure Vessel Inspectors.
(3) In lieu of "(1)" or "(2)" above. A repair organization may perform welded repairs to boilers and/or pressure vessels provided the organization has met the requirements as outlined in the National Board Inspection Code for qualification for the National Board "R" Code Symbol Stamp (the reference to the National Board Certificate of Authorization is deleted and the actual obtaining of the "R" stamp is not required). (For those repair firms or organizations which only repair boilers and/or pressure vessels owned and/or operated by state of Oklahoma authorized owner/user inspection agencies, "ANSI/API 510 Pressure Vessel Inspection Code" may be substituted, if applicable, where the National Board is referenced in the NBIC). IN EACH CASE WELDERS, WELDING OPERATORS AND WELDING PROCEDURES SHALL BE QUALIFIED IN ACCORDANCE WITH ASME SECTION IX AND REFERENCING CODES. FIRMS OR ORGANIZATIONS QUALIFYING UNDER THIS PARAGRAPH SHALL HAVE THEIR QUALITY CONTROL SYSTEM REVIEWED TRIENNIALLY.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-4 - Applicants' business affiliations

Current through Vol. 41, No. 20, July 1, 2024
An applicant for a license under this rule shall state the name of the business, firm, partnership or corporation under which he intends to carry on business, and he may be the owner, a partner, an officer of a corporation or a supervisory employee of the business, firm, partnership or corporation.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-5 - License not required [REVOKED]

Current through Vol. 41, No. 20, July 1, 2024
Revoked at 19 Ok Reg 2788, eff 11-1-02
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-6 - Fee for license

Current through Vol. 41, No. 20, July 1, 2024
The fee as provided for in Title 40, Section 16, Paragraph 2C shall accompany the application for each license.
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 13 - Licensing of Boiler and Pressure Vessel Service, Repair and/or Installers › Section 380:25-13-7 - Annual renewal of license

Current through Vol. 41, No. 20, July 1, 2024
Licenses issued under this subchapter shall be renewed twelve (12) months from the issue month on their initial or current license, and annually on this anniversary date thereafter.
Amended at 19 Ok Reg 2788, eff 11-1-02
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 15 - Boiler and Pressure Vessel Renting and/or Leasing › Section 380:25-15-1 - Rental boiler maintenance

Current through Vol. 41, No. 20, July 1, 2024
Boilers and/or pressure vessels rented or leased for operation in this State shall be maintained as required by the Act and this Chapter by the rentor or leasor, unless contractual arrangements dictate otherwise.
Amended at 10 Ok Reg 3075, eff 6-25-93
Oklahoma Administrative Code › Title 380 - Department of Labor › Chapter 25 - Boiler and Pressure Vessel Rules › Subchapter 15 - Boiler and Pressure Vessel Renting and/or Leasing › Section 380:25-15-2 - Mobile boiler inspection

Current through Vol. 41, No. 20, July 1, 2024
In the event a boiler and/or pressure vessel is moved from one location to another location in this state during the certificate of operation term, as a minimum, an external inspection shall be made at the new location by an inspector as defined by the act.