reglab/statecodes huggingface dataset:
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 2 - Heating Boilers › Rule 15-10-76-3.2.18 - Repairs and Renewals of Boiler Fittings and Appliances

Current through June 25, 2024
Whenever repairs are made to fittings or appliances, or
						it becomes necessary to replace them, such repairs or replacements shall comply
						with Section IV of the ASME Code for new construction.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.1 - Maximum Allowable Working Pressure for Standard Pressure Vessels

Current through June 25, 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 or API-ASME Code under which they were
						constructed and stamped. The maximum allowable working pressure shall not be
						increased to a greater pressure than shown on the manufacturer's name plate
						stamping and data report.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.2 - Maximum Allowable Working Pressure for Nonstandard Pressure Vessels

Current through June 25, 2024
1. For internal pressure: The maximum
					 allowable working pressure on the shell of a nonstandard pressure vessel 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, the inside diameter of the weakest course and the factor of
					 safety set by these rules.
TStE/RFS = maximum allowable working pressure,
								psig
where:
TS = ultimate tensile strength of shell plate, psi.
								When the tensile strength of the steel plate is not known, it shall be taken as
								55,000 psi for temperatures not exceeding 700% F.
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 joints:
For riveted joints -- calculated riveted
								efficiency: For fusion-welded joints:
Single lap weld
40
Double lap weld
60
Single butt weld
60
Double butt weld
75
Forge weld
70
Brazed steel
80
R5 inside radius of weakest course of shell,
								inches, provided the thickness does not exceed 10 percent of the radius. If the
								thickness is over 10 percent of the radius, the outer radius shall be used. FS5
								factor of safety allowed by these rules.
2. For
					 external pressure: The maximum allowable working pressure for cylindrical
					 nonstandard pressure vessels subjected to external or collapsing pressure shall
					 be determined by the rules in Paragraphs UG-28 and UG-29 of Section VIII,
					 Division 1, of the ASME Code.
3.
					 Factors of safety: The minimum factor of safety shall in no case be less than
					 four for existing installations. The factor of safety may be increased 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 of which it
					 is subject. The condition of the vessel and the particular service of which it
					 is subject will be the determining factors.
4. End closures: The maximum allowable
					 working pressure permitted for formed heads under pressure shall be determined
					 by using the appropriate formulas from Paragraphs UG-32, UG-33, or UG-35 of
					 Section VIII, Division 1, ASME Code, and the tensile strength and factors of
					 safety given in Paragraph 2(a), (c).
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.3 - Inspection of Inaccessible Parts

Current through June 25, 2024
Where in the opinion of the inspector, as the result of
						conditions disclosed at the time of inspection, it is advisable to remove the
						interior or exterior lining, covering, or brickwork to expose certain parts of
						the vessel not normally visible, the owner or user shall remove such materials
						to permit proper inspection and to establish construction details. Metal
						thickness shall be determined utilizing appropriate equipment including
						drilling if necessary.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.4 - Pressure Relief Devices

Current through June 25, 2024
Pressure relief devices for each pressure vessel
						installation shall comply with the requirements of ASME Pressure Vessel Code,
						Section VIII.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.5 - Safety Appliances

Current through June 25, 2024
Each pressure vessel shall be protected by such safety
						and relief valves and indicating and controlling devices as will insure its
						safe operation. These valves and devices shall be so constructed, located and
						installed that they cannot readily be rendered inoperative. The relieving
						capacity of the safety valves shall be such as to prevent a rise of pressure in
						the vessel of more than 10 percent above the maximum allowable working
						pressure, taking into account the effect of static head pressure. Safety valve
						discharges shall be carried to a safe place.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.6 - Repairs and Renewals of Fittings and Appliances

Current through June 25, 2024
Whenever repairs are made to fittings or appliances, or
						it becomes necessary to replace them, such repairs or replacements shall comply
						with the ASME Code.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 3 - Pressure Vessels › Rule 15-10-76-3.3.7 - Conditions Not Covered by These Requirements

Current through June 25, 2024
All cases not specifically covered by these requirements
						shall be treated as new installations or may be referred to the Chief Inspector
						for instructions concerning the requirements.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.1 - Inspection of Boilers and Pressure Vessels

Current through June 25, 2024
1. All boilers
					 and pressure vessels, not exempt by the Act, shall be inspected internally and
					 externally, as provided by these rules and regulations, by an authorized
					 inspector. The owner or user shall prepare each boiler or pressure vessel for
					 such inspection and for appropriate pressure tests, whenever necessary.
					 Following is a recommended general guide in preparing equipment for an internal
					 inspection:
2. Boilers
a. Cool the boiler, furnace and setting
					 sufficiently to prevent damage to any part.
b. Drain and wash thoroughly internal parts
					 to be inspected.
c. Remove manhole
					 and handhole plates, and wash out drain and inspection plugs.
d. Remove a sufficient number of grates or
					 internally fired boilers, as requested by the inspector.
e. Remove brickwork, refractory and
					 insulation, as required by the inspector, to determine condition of boiler,
					 headers, tubes, furnace, structural supports, and other parts.
f. Prevent leakage of water, steam or vapors
					 into boiler interiors that would endanger personnel.
g. Before opening the manhole or handhole
					 covers and entering any parts of the steam-generating unit connected to a
					 common header with other boiler, the non-return and steam stop valves must be
					 closed, tagged, and preferably padlocked, and drain valves or cocks between the
					 two valves opened. The feed and check valves must be closed, tagged, and
					 preferably padlocked, and drain valves or cocks located between the two valves
					 opened. After draining the boiler, the blowoff valves shall be closed and
					 padlocked. Blowoff lines, where practicable, shall be disconnected between
					 pressure parts and valves. All drains and vent lines shall be opened.
h. Prepare the pressure gauge for
					 testing.
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.2 - Boilers and Pressure Vessels Improperly Prepared for Inspection

Current through June 25, 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 hydrostatic test as set forth in these rules and
						regulations, the inspector may decline to make the inspection or test and the
						inspection certificate shall be withheld until the owner or user complies with
						the requirements.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.3 - Removal of Covering to Permit Inspection

Current through June 25, 2024
If the boiler or pressure vessel is jacketed so that the
						seams of shells, drums, or domes cannot be seen, sufficient jacketing, setting
						wall, or other form of casing or housing shall be removed to permit reasonable
						inspection of the seams and so that the size of the rivets, pitch of the
						rivets, and other data necessary to determine the safety of the boiler or
						pressure vessel may be obtained, provided such information cannot be determined
						by other means.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.4 - Lap-Seam Crack

Current through June 25, 2024
The shell of a pressure vessel, in which a lap-seam crack
						is discovered along a longitudinal riveted joint, shall be immediately
						discontinued from use. If the equipment is not more than 15 years of age, a
						complete new course of the original thickness may be installed at the
						discretion of the inspector and after approval by the Chief Inspector. Patching
						is prohibited. (By "lap-seam crack" is meant the typical crack frequently found
						in lap seams, extending parallel to the longitudinal joint and located either
						between or adjacent to rivet holes.)
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.5 - Hydrostatic Pressure Tests

Current through June 25, 2024
1. A hydrostatic
					 pressure test, when applied to boiler or pressure vessels, shall not exceed 1
					 1/2 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.
2. See
					 Article III, Section I, Item 1(d), for temperature limitations on particular
					 power boiler installations.
3.
					 Note: When a hydrostatic test is to be applied to existing installations, the
					 pressure shall be as follows:
a. For all
					 cases involving the question of tightness, the pressure shall be equal to the
					 working pressure.
b. For all cases
					 involving the question of safety, the pressure shall be equal to 1 1/2 times
					 the maximum allowable working pressure. During such test the safety valve or
					 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.
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.6 - Automatic Low-Water Fuel Cutoff and/or Water-Feeding Device

Current through June 25, 2024
1. Each automatically fired and unattended
					 steam or vapor system boiler shall be equipped with an automatic low-water fuel
					 cutoff so locates as to automatically cut off the fuel supply when the surface
					 of the water falls to the lowest safe water line. If a water-feeding device is
					 installed, it shall be so constructed that the water inlet valves cannot feed
					 water into the boiler through the float chamber and so located as to supply
					 requisite feedwater. The lowest safe water line should be not lower than the
					 lowest visible part of the water glass. Such fuel or feedwater control device
					 may be attached direct to a boiler or to the tapped openings provided for
					 attaching a water glass direct to a boiler provided that for low-pressure
					 boilers such connections from the boiler are nonferrous tees of Y's not less
					 than 1/2-inch pipe size between the boiler and the water glass, so that the
					 water glass is attached direct and as close as possible to the boiler; the
					 straightaway tapping of the Y or tee to take the water glass fittings, the side
					 outlet of the Y or tee to take the fuel cutoff or water-feeding
					 device.
2. The ends of all nipples
					 shall be reamed to full-size diameter.
3. Designs embodying a float and float bowl
					 shall have a vertical straightaway valve drain pipe at the lowest point in the
					 water-equalizing pipe connections by which the bowl and the equilizing pipe can
					 be flushed and the device tested. A coil type boiler or a water tube boiler
					 with heat input greater than 400,000 BUT/HR requiring forced circulation, to
					 prevent overheating of the coils or tubes, shall have a flow sensing device
					 installed in the outlet piping, in lieu of the low water fuel cutoff required
					 in this item, to automatically cut off fuel supply when the circulating flow is
					 interrupted.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.7 - Pressure-Reducing Valves

Current through June 25, 2024
1. Where
					 pressure-reducing valves are used, one or more relief or safety 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. Proper protection shall be provided to prevent injury or
					 damage caused by the escaping fluid from the discharge of relief or safety
					 valves if vented to the atmosphere. The combined discharge capacity of the
					 relief or safety valves shall be such that the pressure rating of the lower
					 pressure piping or equipment shall not be exceeded in case the reducing valve
					 sticks open. The use of hand-controlled bypasses around reducing valves is
					 permissible. If a bypass is used around the reducing valve, the safety valve
					 required on the low pressure side shall be sufficient capacity to relieve all
					 the fluid that can pass through the bypass without overpressuring the low
					 pressure side.
2. It is mandatory
					 that a pressure gauge be installed on the low-pressure side of a reducing
					 valve.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.8 - Blowoff Equipment

Current through June 25, 2024
1. The blowdown
					 from a boiler or boilers that enters a 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.
2. The temperature of
					 the water leaving the blowoff valve equipment shall not exceed 150ø
					 F.
3. The pressure of the blowdown
					 leaving any type of blowoff equipment shall not exceed 5 psig.
4. The blowoff piping and fittings between
					 the boiler and the blowoff tank shall comply with Section I of the ASME
					 Code.
5. All materials used in the
					 fabrication of boiler blowoff equipment shall comply with Section II of the
					 ASME Code.
6. All blowoff equipment
					 shall be fitted with openings to facilitate cleaning and inspection.
7. Blowoff equipment shall conform to the
					 provisions set forth in the National Board of Boiler and Pressure Vessel
					 Inspectors' publication, "Boiler Blowoff Equipment."
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.9 - Location of Discharge Piping Outlets

Current through June 25, 2024
The discharge of safety valves, blowoff pipes and other
						outlets shall be located so as to prevent injury to
						personnel.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.10 - Major Repairs

Current through June 25, 2024
Where repairs are necessary, which in any way affect the
						working pressure or safety of a boiler or pressure vessel, an inspector shall
						be called for consultation and advice as to the best method of making such
						repairs. After such repairs are made, they shall be reviewed by and found
						acceptable to an inspector. Repairs to all boilers and pressure vessels shall
						conform to the applicable provisions of the National Board Inspection
						Code.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.11 - Supports

Current through June 25, 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 the boiler, pressure vessel, or their connected piping
						or fittings.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.12 - Boiler Door Latches

Current through June 25, 2024
1. A watertube
					 toiler 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.
2. 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.
3. 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. Explosion
					 doors, if used and if located in the setting walls within seven feet of the
					 firing floor or operating platform, shall be provided with substantial
					 deflectors to divert the blast.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.13 - Clearance

Current through June 25, 2024
When boilers are replaced or new boilers are installed in
						either existing or new buildings, a minimum height of at least three feet shall
						be provided between the top of the boiler proper and the ceiling and at least
						three feet between all sides of the boiler and adjacent walls or other
						structures. Boilers and pressure vessels having manholes shall have five feet
						clearance from the manhole opening and any wall, ceiling or piping that will
						prevent a person from entering the boiler or vessel. 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.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.14 - Ladders and Runways

Current through June 25, 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. All runways shall have at least two means of exit,
						each to be remotely located from the other.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.15 - Air and Ventilation Requirements

Current through June 25, 2024
A permanent source of outside air shall be provided for
						each boiler room to permit satisfactory combustion of fuel as well as proper
						ventilation of the boiler room under normal operating conditions.
1. The total requirements of the burners for
					 all fired pressure vessels in the boiler room must be used to determine the
					 louver sizes whether fired by coal, oil or gas; however, the minimum net free
					 louvered area must not be less than one square foot. The following table or
					 formula shall be used to determine the net louvered area in square feet:
Input BTU/Hour
Required Air Cu.Ft./Min.
Min. Net Louvered Area Sq. Ft.
500,000
125
1.0
1,000,000
250
1.0
2,000,000
500
1.6
3,000,000
750
2.5
4,000,000
1000
3.3
5,000,000
1250
4.1
6,000,000
1500
5.0
7,000,000
1750
5.8
8,000,000
2000
6.6
9,000,000
2250
7.5
10,000,000
2500
8.3
(BTU/HR ÷100) X 1.5
60 ÷ 300 = Min. Net Area Req. Sq. Ft.
2. When mechanical ventilation is
					 used in lieu of (a) 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 shown in (1.).
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.16 - Fired Jacketed Steam Kettles

Current through June 25, 2024
1. Fired jacketed
					 steam kettles are acceptable for installation if constructed and stamped in
					 accordance with Section I, IV, or VIII, Division 1, of the ASME Boiler Code and
					 registered with the National Board.
2. Gas-fired jacketed steam kettles may be
					 constructed under the rules of the ASME Pressure Vessel Code, Section VIII,
					 provided the following additional requirements are met:
3. Welded joints in contact with products of
					 combustion shall be of Type No. 1 of Table UW-12.
4. When parts subjected to pressure are made
					 of carbon steel material, the minimum thickness shall be 1/2 inch. The minimum
					 thickness of stainless steel or nonferrous pressure parts shall be as specified
					 in the applicable part of Subsection C.
5. When in contact with products of
					 combustion, carbon steel material shall be pressure vessel quality and
					 austenitic stainless steel parts shall be of either extra-low carbon or
					 stabilized grades.
6. Structural
					 grade carbon steel shall not be used for any pressure part.
7. The operating pressure of the jacket shall
					 not exceed 50 psig.
8. Vessels
					 constructed under this rule shall be inspected by an authorized inspector and
					 shall not be marked with the UM Symbol regardless of volume.
9. No steam or water shall be withdrawn from
					 the jacket for use externally to the vessel.
10. The capacity of the safety valve in
					 pounds of steam per hour shall be at least equal to the BTU rating of burner
					 divided by 1,000.
11. The jacket
					 shall be furnished with the following minimum appurtenances and controls:
a. A pressure gauge.
b. A water gauge glass.
c. A separate connection, fitted with a check
					 valve and stop valve, for adding water to the jacket (the water may be added
					 while the vessel is not under pressure.)
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.17 - Shop Inspection and Inspection of Secondhand or Used Boilers or Pressure Vessels

Current through June 25, 2024
1. Shop inspections
					 and inspections of secondhand or used boilers or pressure vessels made by the
					 Chief Inspector or a Deputy Inspector shall be charged for in accordance with
					 fee schedule.
2. Note: The shop
					 inspections required by an applicable section of the ASME Boiler & Pressure
					 Vessel Code shall be made by an inspector who holds a valid license or
					 commission recognized by the Department.
3. Pressure vessels which are covered under
					 the Liquefied Compressed Gas Equipment Inspection Law of Mississippi, being
					 Sections
					 75-57-1 through
					 75-57-63,
					 Mississippi Code of 1972, are exempt from these Regulations.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.18 - Manufacturers

Current through June 25, 2024
Boilers and pressure vessels and component parts to be
						installed for use in the State of Mississippi except those exempted by the
						provisions of Section
						45-23-15 of
						the Act shall be designed, constructed, inspected, stamped and installed in
						accordance with current applicable section of the ASME Boiler and Pressure
						Vessel Code and/or the Rules and Regulations of the Department. Boilers and
						pressure vessels shall be stamped with applicable:
1.
ASME Code stamping, Or
Mississippi Special number or Mississippi Standard
								number
ASME Code Symbol and the word "User," see Par.
								UG-116 (a)(1)(a), and
Underwriters' Laboratory label on electrically
								heated boilers, pressure vessels and water heaters.
2.
					 Manufacturer's data reports on boilers, pressure vessels, and component parts
					 which are to be installed and operated in the State of Mississippi except those
					 exempted by the provisions of Section
					 45-23-15 of
					 the Act shall be filed with the Chief Inspector, Boiler and Pressure Vessel
					 Safety Branch.
3. If a boiler or
					 pressure vessel is of special design and will not bear the ASME Code Symbol and
					 National Board or user stampings, a permit for a State Special must be applied
					 for in writing by the Mississippi user. Blueprints, design data, calculations
					 and material showing details of the proposed construction shall be submitted to
					 the Branch and approval obtained before construction is started.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.19 - Conditions Not Covered by These Rules and Regulations

Current through June 25, 2024
For any condition not covered by these requirements, the
						applicable provisions of the ASME Code and/or the National Board Inspection
						Code shall apply.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.20 - Accessibility for Inspection

Current through June 25, 2024
1. All unfired
					 pressure vessels hereafter installed or reinstalled shall be placed above
					 ground where possible and so installed that all parts of the vessels can be
					 readily inspected.
2. Where
					 necessary to install a vessel under ground, it shall be enclosed in a concrete,
					 brick or steel enclosure with a removable cover, so that regular inspections of
					 the entire shell and heads of the vessel can be made.
3. Exceptions: Vessels not in excess of 100
					 psi design working pressure having adequate cathodic protection with epoxy or
					 bitumastic coating and containing non-toxic or non-flammable material may be
					 buried without a pit enclosure provided such vessels shall have means of
					 internal inspection.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.21 - Boilers Exposed to the Elements

Current through June 25, 2024
Boilers not contained in boiler rooms that are exposed to
						freezing temperatures shall have their water and steam lines either steam
						traced or wrapped with electric heating tape where needed.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.22 - Fired Storage Water Heaters and Supply Vessels

Current through June 25, 2024
1.
					 Minimum Controls -- All fired storage water heaters and supply vessels shall be
					 equipped with the following controls and devices:
a. Operating temperature control;
b. High-limit temperature control;
c. Positive flame failure cut-off;
d. Approved pressure-temperature relief
					 valve, set at or below the safe working pressure of the vessel, with such
					 setting satisfactory for the application.
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.23 - Safety Valves and Rupture Disk Notes

Current through June 25, 2024
1. Any safety
					 valve, piping, valve, or appurtenance exposed to freezing temperatures shall be
					 properly positioned against collecting moisture and properly drained to prevent
					 freeze-up.
2. Safety valves on
					 Dowtherm and similar vaporizers shall be removed annually for cleaning and
					 testing, at time of certificate inspection. Safety valves for compressed-air
					 tanks shall not exceed three inches in diameter and shall be proportioned for
					 the maximum number of cubic feet of free air that can be applied per
					 minute.
3. Rupture disks or heads
					 may be used as the pressure safety device on vessels containing non-toxic gases
					 provided they are designed to fail at not more than the design pressure of the
					 vessel.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.24 - Portable Boilers and Pressure Vessels

Current through June 25, 2024
Every owner or user of portable boilers or pressure
						vessels shall furnish in writing to the Branch, on or before the effective date
						of these regulations and yearly thereafter, a list of their portable boilers
						and unfired pressure vessels, giving the location of each and indicating
						whether it is insured and inspected by an Insurance Company licensed in
						Mississippi to inspect boilers and pressure vessels. No such boiler or pressure
						vessel shall be used until it has been inspected by an authorized boiler
						inspector and a certificate of inspection has been issued.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.25 - Fuel Conversions and Increases in Size of Fuel Burning Apparatus

Current through June 25, 2024
Either of these shall nullify the current operating
						certificate and a re-inspection by a licensed inspector is mandatory prior to
						returning the boiler to service.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.26 - Inspection Openings - Not To Be Used for Any Other Purpose

Current through June 25, 2024
Any and all inspection openings shall not be obstructed;
						they shall have adequate clearance for their purpose of being used as an
						inspection opening. They shall not be used for pipe connection. They shall not
						be increased in size unless with the concurrence of a licensed inspector, and
						then only according to and in compliance with the ASME Code's pertinent
						paragraphs.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.27 - Boilers and Pressure Vessels That Are Exempt

Current through June 25, 2024
The fact that boilers and pressure vessels are exempt
						from the Act does not preclude them from having the normal and proper safety
						controls and devices.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.28 - Exit from Boiler Room

Current through June 25, 2024
All boiler rooms exceeding 500 square feet floor area and
						containing one or more boilers having fuel burning capacity of 1,000,000 BTU
						per hour, or equivalent electrical heat input, shall have at least two means of
						exit. Each exit shall be remotely located from the other.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.29 - Return Loop Connection

Current through June 25, 2024
It is recommended that the return water connections to
						all low pressure, steam heating boilers supplying a gravity return heating
						system be so arranged as to form what is known as the "return pipe loop
						connection," so that the water cannot be forced out of the boiler below the
						safe water level. This connection is shown in Figure HG-703-1 of Section IV,
						ASME Heating Boiler Code.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 4 - General Requirements › Rule 15-10-76-3.4.30 - Authorization Required for Repairs

Current through June 25, 2024
1. No repair or
					 alteration affecting the safety of the boiler or pressure vessel shall be made
					 until the contemplated repair or alteration has been authorized by a licensed
					 inspector. Nothing in this requirement shall prohibit the exchange or
					 interchange of valves, fittings, and accessories for the same
					 purpose.
2. No pressure vessel that
					 has been subject to a fire shall be returned to service until it has been
					 inspected by a licensed inspector and found safe. Any vessel that has been
					 altered or repaired or subjected to a fire shall be prepared for hydrostatic
					 test if one is considered necessary by the licensed inspector. Any welding on
					 which the strength of any boiler or pressure vessel is dependent shall be made
					 by a welder suitably certified under the ASME Code, Section IX.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 5 - Recommended Safe Practices - Non-Mandatory › Rule 15-10-76-3.5.1 - Design Changes and Alterations of Boilers or Pressure Vessels

Current through June 25, 2024
No repairs or alterations involving flame, arc, or other
						method of welding shall be made on any pressure vessel or system unless such
						vessel or system shall first have been certified as gas free or oxygen free by
						competent personnel.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 5 - Recommended Safe Practices - Non-Mandatory › Rule 15-10-76-3.5.2 - Operators

Current through June 25, 2024
1. All power boilers (over 15 psi) with fully
					 automatic control, having a rated output of 1000 or more pounds of steam or
					 vapor per hour and high pressure, high temperature water boilers, shall not be
					 operated without being periodically checked by an operator at intervals of not
					 less than once every two hours, regardless of whether or not the boiler is
					 equipped with automatic feedwater regulator, fuel or damper regulator, high and
					 low water alarm or any other form of automatic control while the boiler is in
					 service.
2. All power boilers and
					 high pressure/high temperature water boilers without fully automatic control
					 shall have a full-time operator while the boiler is in service. Operator -- a
					 competent attendant who is familiar with the particular boilers to be operated
					 and who has received proper instruction in their safe operation.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 5 - Recommended Safe Practices - Non-Mandatory › Rule 15-10-76-3.5.3 - Fuel Burning Apparatus and Systems (Flame Safeguard)

Current through June 25, 2024
Fuel burning apparatus and systems should be equipped
						with regulating and protective controls in accordance with applicable standards
						of the National Fire Protection Association, American Gas Association, and
						Underwriters' Laboratories.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 5 - Recommended Safe Practices - Non-Mandatory › Rule 15-10-76-3.5.4 - Electric Boilers

Current through June 25, 2024
1. Electric boilers
					 600 volts or less subject to the requirements of the Safety Act and these rules
					 and regulations shall bear the Underwriter's laboratories label on the
					 completed unit or assembly by the manufacturer. This label shall be in addition
					 to the code symbol stamping requirements of the ASME and the National
					 Board.
2. All appliances required
					 for electric boilers shall be attached in accordance with the following
					 rules:
3. A cable at least as large
					 as the income power line to the boiler shall be provided for grounding the
					 boiler shell. This cable shall be permanently fastened to the boiler and
					 grounded in an approved manner.
4.
					 Conductor or conductors shall be attached by means of suitable connectors,
					 lugs, pressure connectors, clamps or other approved means, Connectors that
					 depend on solder to maintain connection shall not be used.
5. A suitable screen or guard shall be
					 provided around high tension bushings and a sign posted warning of high
					 voltage. This screen or guard shall be so located that it will be impossible
					 for anyone working around the boiler to come in contact accidentally with the
					 high tension circuit.
6. When
					 adjusting safety valves, the power circuit to the boiler shall be open. The
					 boiler may be under steam pressure, but the power line shall be open while the
					 operator is making the necessary adjustment.
7. Safety or relief valves shall have a
					 relieving capacity of three and one-half (3 1/2) pounds per hour for each
					 kilowatt maximum rating.
Miss. Code Ann.
						§
												45-23-9
Mississippi Administrative Code › Title 15 - Mississippi Department of Health › Part 10 - Boiler and Pressure Vessel Safety › Subpart 76 - Boiler and Pressure Vessel Safety Act and Rules and Regulations › Chapter 3 - Existing Installations › Subchapter 5 - Recommended Safe Practices - Non-Mandatory › Rule 15-10-76-3.5.5 - Fire Safety Precautions

Current through June 25, 2024
All fired boiler and fired pressure vessel installations
						shall be on a non-combustible floor or base, and breeching or flue shall not
						pass through combustible wall, ceiling, roof or partition unless suitably
						guarded against excess heat
Miss. Code Ann.
						§
												45-23-9