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Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.01 - Purpose

Current through June 24, 2024
Pursuant to ss.
						101.02(15),
						101.17
						and
						101.63, the
						purpose of this chapter is to protect the health, safety and welfare of the
						public and employees by establishing minimum standards for the design,
						construction, installation, operation, inspection, testing, maintenance,
						alteration and repair of boilers, pressure vessels, power piping and
						solid-fuel-fired water-heating appliances.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.02 - Scope

Current through June 24, 2024
(1)
					 BOILERS AND PRESSURE VESSELS.
(a) Except as
					 provided in par. (b), this chapter applies to boilers and piping components
					 associated with boilers, pressure vessels, power piping, and solid-fuel-fired
					 water-heating appliances in use at places of employment, in public buildings
					 and at one- or 2-family dwellings.
Note:
The Wisconsin Commercial Building
						Code (WCBC), chapters
						SPS
						361 to
						366, likewise applies this
						chapter to the installation, alteration and repair of boilers and pressure
						vessels in public buildings and places of employment. The WCBC may have other
						requirements relating to the installation, alteration or repair of a boiler or
						pressure vessel, such as requirements relating to enclosures, location, safety
						controls, combustion air, and venting. The
International Mechanical
						Code
® (IMC) as adopted by reference under the WCBC contains
						requirements relating to hydronic piping.
Note:
Wisconsin Administrative Codes are
						available at https://docs.legis.wisconsin.gov/code/prefaces/toc. Official
						copies may be obtained for a nominal fee at the Department of Administration,
						Document Sales and Distribution, 4622 University Avenue, Madison, Wisconsin
						53705-2156, telephone 800-DOC-SALES or Contact Through Relay, or at
						docsales@doa.state.wi.us.
(b)
1.
					 Subchapters V, VIII and IX do not apply to one- or 2-family
					 dwellings.
2. Only subch. VI
					 applies to a pressure vessel in a mechanical refrigeration system.
Note:
Chapter
						SPS
						345 contains additional requirements for pressure
						vessels in mechanical refrigeration systems.
3. This chapter does not apply to the gas
					 systems that are within the scope of ch. SPS 340.
Note:
The gas systems addressed in chapter
						SPS
						340 include pressurized vessels and piping for gases
						that are used for fueling purposes, such as for heating appliances or
						engines.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.03 - Application

Current through June 24, 2024
(1) RETROACTIVITY.
(a) The operation, testing, maintenance and
					 inspection requirements of this chapter apply to all boilers, pressure vessels,
					 power piping, solid-fuel-fired water-heating appliances, and their components,
					 that exist on or after June 1, 2012.
(b) A design, construction or installation
					 rule of this chapter, including the applied criteria from the standards adopted
					 in s.
					 SPS
					 341.10, does not apply retroactively to boilers,
					 pressure vessels, power piping, solid-fuel-fired water-heating appliances, and
					 their components, that were installed prior to the effective date of the rule
					 unless specifically stated in the rule or standard.
(c) The design, construction and installation
					 requirements of this chapter apply to any alterations, repairs, and replacement
					 parts or components for all boilers, pressure vessels, power piping,
					 solid-fuel-fired water-heating appliances, and their components, that exist on
					 or after June 1, 2012.
Note:
A proposed alteration for an existing
						boiler, pressure vessel or power piping may necessitate modifying other
						components in order to make the proposed alteration comply with this chapter -
						and some alterations may necessitate modifying other features of a building,
						such as an automatic fire sprinkler system, that must comply with requirements
						in chapters
						SPS
						361 to
						366, the Wisconsin Commercial
						Building Code.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.04 - Definitions

Current through June 24, 2024
(1)
(a)
					 "Alteration," for a boiler or pressure vessel, has the meaning given in NBIC
					 part 3 Section 9.1.
(b)
					 "Alteration," for power piping or a solid-fuel-fired water-heating appliance,
					 means a change that involves an extension or addition to, or involves the
					 arrangement, type or purpose of, an existing installation or
					 component.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.05 - Petition for variance

Current through June 24, 2024
The department shall consider and may grant a variance to
						a provision of this chapter in accordance with ch. SPS 303. The petition for
						variance shall include, where applicable, a position statement from the fire
						department having jurisdiction, and from any first class city having
						jurisdiction to enforce this chapter.
The Department forms required in this chapter are
						  available for a nominal fee at telephone 800-DOC-SALE or 411
						  (Telecommunications Relay), or at docsales@doa.state.wi.us, or at no charge at
						  the Department's Web site at
www.dsps.wi.gov
through links to Division of
						  Industry Services forms.
Note:
Chapter
						  SPS
						  303 requires the submittal of a petition for variance
						  form (SBD-9890X) and a fee, and that an equivalency is established in the
						  petition for variance which meets the intent of the rule being petitioned.
						  Chapter
						  SPS
						  303 also requires the Department to process regular
						  petitions within 30 business days and priority petitions within 10 business
						  days.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.06 - Penalties

Current through June 24, 2024
Penalties for violations of this chapter shall be
						assessed in accordance with s.
						101.02(12)
						and (13) (a), Stats.
Section
						  101.02(12),
						  Stats., indicates that every day during which any person, persons, corporation
						  or any officer, agent or employee thereof, fails to observe and comply with an
						  order of the Department will constitute a separate and distinct violation of
						  such order.
Note:
Section
						  101.02(13)
						  (a), Stats., indicates penalties will be
						  assessed against any employer, employee, owner or other person who fails or
						  refuses to perform any duty lawfully enjoined, within the time prescribed by
						  the Department, for which no penalty has been specifically provided, or who
						  fails, neglects or refuses to comply with any lawful order made by the
						  Department, or any judgment or decree made by any court in connection with ss.
						  101.01 to 101.25,
						  Stats. For each such violation, failure or refusal, such employee, owner or
						  other person must forfeit and pay into the state treasury a sum not less than
						  $10 nor more than $100 for each
						  violation.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.07 - Appeals

Current through June 24, 2024
(1) APPEAL OF DEPARTMENT ORDER. Pursuant to
					 s.
					 101.02(6)
					 (e), Stats., any person who owns or occupies
					 a property that is affected by an order of the department may petition the
					 department for a hearing on the reasonableness of the order.
(2) APPEAL OF LOCAL ORDER. Pursuant to s.
					 101.02(7)
					 (b), Stats., any person affected by a local
					 order that is in conflict with an order of the department may petition the
					 department for a hearing on the local order.
Note:
Section
						101.01(8),
						Stats., defines local order as any ordinance, order, rule or determination of
						any common council, board of alderpersons, board of trustees or the village
						board, of any village or city, a regulation or order of the local board of
						health, as defined in s.
						250.01(3),
						or an order or direction of any official of a municipality, upon any matter
						over which the Department has jurisdiction.
(3) PETITION OF ADMINISTRATIVE RULE. Pursuant
					 to s.
					 227.12,
					 Stats., any municipality, corporation or any 5 or more persons having an
					 interest in an administrative rule may petition the department requesting the
					 adoption, amendment or repeal of that rule.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.08 - Fees

Current through June 24, 2024
Fees for inspections and other services performed by the
						department shall be submitted to the department as specified in ch. SPS
						302.
A first class city may charge the same or other fees
						  for their services. Service contractors who are authorized agents of the
						  Department charge fees that are established in a contract with the Department.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.09 - Enforcement

Current through June 24, 2024
(1) This chapter shall be enforced by the
					 department and its authorized agents, except as provided in s.
					 SPS 341.16(1) (b) 2. and
					 (3) (b) for one- and 2-family
					 dwellings.
(2) Where a first class
					 city administers and enforces this chapter, a regulated item or activity shall
					 be directed to or addressed by the city before requesting input from the
					 department.
Under section
						  SPS
						  341.03(4), the Department reserves
						  the right to interpret the requirements in this chapter and in all codes and
						  standards adopted herein.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.10 - Adoption of standards by reference

Current through June 24, 2024
The following standards, as produced by each listed
						organization, are hereby incorporated by reference into this chapter, subject
						to the modifications specified in this chapter:
(1) American Petroleum Institute, 1220 L
					 Street, Northwest, Washington, D.C. 20005, telephone 202/682-8000,
www.api.org
. Pressure Vessel Inspection Code,
					 API 510, 9th edition, June 2006.
(2) American Society of Mechanical Engineers
					 (ASME), Order Department, P.O. Box 2900, Fairfield, NJ 07007-2900, telephone
					 800/843-2763,
www.asme.org
, which produces
					 each of the following:
(a) ASME Boiler and
					 Pressure Vessel Code, 2010 edition: Section I - Rules for Construction of Power
					 Boilers, Section II -Materials, Section IV - Rules for Construction of Heating
					 Boilers, Section V - Nondestructive Examination, Section VIII - Rules for
					 Construction of Pressure Vessels, Section IX - Welding and Brazing
					 Qualifications, and Section X - Fiber-Reinforced Plastic Pressure Vessels.
Note:
Section VI of the ASME code,
						Recommended Rules for the Care and Operation of Heating Boilers and section VII
						of the ASME code, Recommended Guidelines for the Care of Power Boilers may be
						used as reference guides.
(b) Power Piping, ASME B31.1-2010
.
(c) Safety Standard for
					 Pressure Vessels for Human Occupancy, ASME PVHO-1-2007.
(d) Safety Standard for Pressure Vessels for
					 Human Occupancy: In-Service Guidelines for PVHO Acrylic Windows, ASME
					 PVHO-2-2003.
(e) Controls and
					 Safety Devices for Automatically Fired Boilers, ASME CSD-1-2009.
Note:
See section
						SPS
						341.11(2) for modifications of ASME
						CSD-1.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter I - Scope, Definitions and Administration › Section SPS 341.11 - Application of standards

Current through June 24, 2024
(1) NBIC OMISSIONS.
					 The requirements in the following portions of the NBIC are not included as part
					 of this chapter:
(a) In part 1 - sections 1,
					 2.4.1, 2.5.4, 2.10.2, 2.10.6, 3.2.3, 3.4.1, 3.5.3, 3.5.4, 3.7.5.2, 3.7.7.2,
					 3.7.9.2, 3.8.3, 3.9.4, 3.10, and 5; Figures 3.7.5-d and 3.5.7-e; and Table
					 3.7.9.2.
(b) In part 2 - sections
					 1.1, 1.2, 1.3, 1.4, 1.4.1, 2.2.12.5, 2.2.12.6, 2.3.5.4, 2.3.6.4, 2.4, 2.5.3,
					 5.3 and supplement 6.
(c) In parts
					 1 and 2 - any reference to using an NBIC form.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.15 - General inspection requirements

Current through June 24, 2024
(1) ALL
					 INSPECTIONS. Certified inspectors, upon presenting appropriate credentials to
					 the owner or user, may do any of the following:
(a) Enter without delay and at reasonable
					 times any factory, plant, establishment, construction site, or other area,
					 workplace or environment where work is performed by an employee.
(b) Inspect and investigate during regular
					 working hours and at other reasonable times, and within reasonable limits and
					 in a reasonable manner, any place of employment and all pertinent conditions,
					 structures, machines, apparatus, devices, equipment, and materials therein, and
					 to question privately any employer, owner, operator, agent or employee.
Note:
Section
						101.02(15)
						(g) of the Statutes authorizes the Department
						and its deputies to "enter any place of employment or public building, for the
						purpose of collecting facts and statistics, examining the provisions made for
						the health, safety and welfare of the employees, frequenters, the public or
						tenants therein and bringing to the attention of every employer or owner any
						law, or any order of the department, and any failure on the part of such
						employer or owner to comply therewith."
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.16 - Installation inspections

Current through June 24, 2024
(1) BOILER AND
					 PRESSURE VESSEL INSPECTIONS.
(a)
1. Except as provided in par. (b), boilers
					 and pressure vessels shall be inspected by a certified inspector before they
					 are placed in operation.
2.
					 Inspections under this section shall be conducted in accordance with the
					 NBIC.
3. Inspections under this
					 section where equipment is installed under ASME CSD-1 shall include
					 verification of whether all of the following are available:
a. The manufacturer's instructions that are
					 required in ASME CSD-1 sections CG-430 and 510 (c).
b. The manufacturer's and contractor's
					 reports that are required in ASME CSD-1 sections CG-510 (a) and (b).
c. The operator's checklist that is required
					 in ASME CSD-1 section CM-130.
Note:
See section
						SPS
						341.41 for installation registration
						requirements.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.17 - Periodic Inspections

Current through June 24, 2024
(1) INSPECTION OF POWER BOILERS, MINIATURE
					 BOILERS AND ORGANIC- OR SYNTHETIC-FLUID HEAT-TRANSFER BOILERS.
(a) Except as provided in s.
					 SPS
					 341.18, power boilers, miniature boilers and organic-
					 or synthetic-fluid heat-transfer boilers shall be subjected to either a regular
					 internal or external inspection at least once every 12 months by a certified
					 inspector.
(b) Where an internal
					 inspection of a power boiler is not possible because of the construction of the
					 boiler, an external inspection shall be acceptable.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.18 - Exemptions from periodic inspections

Current through June 24, 2024
(1) EXEMPTED
					 EQUIPMENT. Except as provided in sub. (2), periodic inspections are not
					 required for any of the following:
(a)
					 Boilers or pressure vessels that receive regular inspections by United States
					 government inspectors.
(b) Heating
					 boilers located in dwelling units.
(c) Expansion tanks for hot-water heating
					 boilers.
(d) Boilers used
					 exclusively for agricultural purposes.
(e) Pressure vessels having an inside
					 diameter not exceeding 6 inches with no limit on pressure.
(f) Pressure vessels having a volume of less
					 than 5 cubic feet and an operating pressure of less than 250 psig.
(g) Pressure vessels with a volume of less
					 than 1-1/2 cubic feet with no limit on pressure.
(h) Pressure vessels having an internal or
					 external operating pressure of not more than 15 psig with no limitation on
					 size.
(i) Hot-water supply boilers
					 and water heaters, and hot-water storage tanks in which the temperature does
					 not exceed 210°F.
(j) Vessels
					 used for the storage or processing of cold water, including those with air
					 cushions.
(k) Pressure vessels that
					 are used in accordance with the regulations of the United States department of
					 transportation.
(m) Pressure
					 vessels used in processing and storing of fermented beverages at temperatures
					 not exceeding 140°F.
(n) Any
					 pressure vessel used as an integral part of an electrical circuit
					 breaker.
(o) Installations at one-
					 or 2-family dwellings.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.19 - Preparation for internal inspection

Current through June 24, 2024
(1) GENERAL
					 REQUIREMENTS. The owner or user of a boiler or a pressure vessel subject to
					 inspection shall prepare the vessel for internal inspection after due notice
					 from the certified inspector. To prepare a vessel for an internal inspection,
					 all manhole plates, all wash-out plugs, and a sufficient number of handhole
					 plates to permit a satisfactory inspection shall be removed. The shell and
					 heads shall be thoroughly cleaned and exposed when so requested. Each steam
					 boiler shall be thoroughly drained of water and all fire-side surfaces cleaned
					 before an internal inspection is made.
(2) PREPARATION PROCEDURE. The following
					 procedure shall be required for preparation for inspection:
(a) Before entering any part of a boiler that
					 is connected to a common header with other boilers, the required steam or water
					 system stop valves shall be closed, tagged and preferably padlocked, and drain
					 valves or cocks between the 2 closed stop valves shall be opened. The feed
					 valves shall be closed, tagged, and preferably padlocked, and drain valves or
					 cocks located between the 2 valves shall be opened.
(b) After draining the boiler, the blowoff
					 valves 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.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.23 - Reporting of periodic inspections

Current through June 24, 2024
(1) REPORTING
					 PROCESSING TIME.
(a) Except as provided in
					 par. (b) and s.
					 SPS
					 341.55(4), reports of periodic
					 internal or external inspections of boilers and pressure vessels shall be sent
					 to the department in accordance with the department's electronic data
					 interchange transfer guidelines, within 5 business days after completing the
					 inspection, unless additional time is authorized by the department.
Note:
The Department will provide
						assistance at no charge regarding the use of the electronic data interchange
						system. The guidelines are available at the Department's Web site at
www.dsps.wi.gov/sb/docs/sb-BoilerEdiGuidelines.pdf
.
(b) The department's 10663-E inspection form
					 may be used in lieu of the electronic data interchange system where approved in
					 advance by the department.
Note:
The Department forms required in this
						chapter are available for a nominal fee at telephone 800-DOC-SALE or 411
						(Telecommunications Relay), or at docsales@doa.state.wi.us, or at no charge at
						the Department's Web site at
www.dsps.wi.gov
through links to Division of
						Industry Services forms.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter II - Inspections › Section SPS 341.24 - Permit to operate

Current through June 24, 2024
(1) RESPONSIBILITY.
(a)
Owner or user.
1. Except as specified in subd. 2., the owner
					 or user of the boiler or pressure vessel shall be responsible for obtaining and
					 maintaining a valid permit to operate.
2. An owner or user of a boiler or pressure
					 vessel installed at a one- or 2-family dwelling is not required to apply for a
					 permit to operate as specified in this section.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.27 - Application

Current through June 24, 2024
Except as specified under s.
						SPS
						341.29(2), this subchapter applies to
						all boilers and pressure vessels existing on or after June 1,
						2012.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.28 - Safety rules

Current through June 24, 2024
(1) MAXIMUM ALLOWABLE WORKING PRESSURE. No
					 boiler or pressure vessel may be operated at a pressure in excess of the
					 maximum allowable working pressure stated on its current permit to
					 operate.
(2) ALTERATION TO SAFETY
					 DEVICES. No unauthorized person may remove or tamper with any connected safety
					 device.
(3) INSTALLATION LOCATION.
(a) Except as specified in par. (b), boilers
					 and pressure vessels shall be installed in accordance with the manufacturer's
					 installation specifications.
(b)
					 Clearances shall be maintained around boilers, generators, heaters, tanks and
					 related equipment and appliances to permit inspection, servicing, repair,
					 replacement and visibility of all gages. When boilers are installed or
					 replaced, clearance shall be provided to allow access for inspection,
					 maintenance and repair. Passageways around all sides of boilers shall have an
					 unobstructed width of not less than 18 inches unless otherwise approved by the
					 department or authorized agent.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.30 - Low-water cutoff, water feeder and fusible plug

Current through June 24, 2024
(1) GENERAL
					 REQUIREMENTS.
(a) Every automatically fired
					 power boiler that does not have a full-time attendant and every automatically
					 fired low-pressure steam boiler shall be equipped with an automatic low-water
					 fuel cutoff or other device which will perform a similar function, so located
					 as to automatically cut off the fuel supply when the surface of the water falls
					 to the lowest safe water line.
(b)
					 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 feed water. The lowest safe water line
					 shall be not lower than the lowest visible part of the water glass.
(c) Boilers that are manually fired and have
					 a residual heat source shall have a fusible plug installed which will
					 extinguish the fire in the event of low water. Fire doors shall be provided
					 with secure latches on manually fired boilers having fusible plugs.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.31 - Boiler blowoff equipment

Current through June 24, 2024
(1)
					 PRESSURE-TEMPERATURE LIMITS. The blowdown from a boiler 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 specified in pars. (a) and (b).
(a) The temperature of the water leaving the
					 blowoff equipment may not exceed 160°F.
(b) The pressure of the blowdown leaving the
					 blowoff equipment may not exceed 5 psig.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.32 - Pressure gages for air receivers

Current through June 24, 2024
(1) GAGE LOCATION.
					 Air receivers shall be equipped with an indicating pressure gage so located as
					 to be readily visible.
(2) GAGE
					 DIAL. The dial of the pressure gage shall be graduated to approximately double
					 the pressure at which the safety valve is set, but may not be less than one and
					 one-half times that pressure.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.33 - Protection of vessels supplied through pressure-reducing stations

Current through June 24, 2024
(1) SIZING SAFETY
					 VALVES. The requirements in this section shall be used for determining the
					 sizes of safety valves on pressure vessels such as pressure cookers, indirect
					 hot water heaters and equipment in heating systems, that are supplied through
					 pressure-reducing stations from boilers carrying a higher steam pressure. Where
					 a pressure-reducing station is supplied from a boiler, the capacity of the
					 safety valves on the low-pressure side of the system need not exceed the
					 capacity of the boiler.
(2)
					 REDUCING-STATION CAPACITY.
(a) The following
					 formula shall be used to determine the steam flow rate through the
					 pressure-reducing station.
View Image
(b) The critical flow capacity data supplied
					 by the reducing valve manufacturer may be used in place of the above formula to
					 select the required safety valve capacity. The capacity calculations shall be
					 the largest obtainable by internal trim change of the reducing valve.
(c) In using Table 341.33-1, the
					 pressure-reducing station inlet pressure is the lowest set pressure of any
					 safety valve on the high pressure side of the pressure-reducing
					 station.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.34 - Portable boilers

Current through June 24, 2024
(1) PERMIT REQUIRED. The owner or user of a
					 portable boiler located in Wisconsin or brought into Wisconsin for use, shall
					 possess a permit to operate issued by the department prior to use.
(2) BOILER REQUIREMENTS. The permit to
					 operate shall be issued only after all of the following requirements are met:
(a) The boiler complies with s.
					 SPS
					 341.42.
(b) The boiler is installed according to the
					 applicable requirements of this chapter.
(c) An internal or external inspection of the
					 boiler has been made that is acceptable to the department.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.35 - Interconnected boilers

Current through June 24, 2024
When boilers of different maximum allowable working
						pressures with minimum safety valve settings varying more than 6% are so
						connected that steam can flow toward the lower pressure units, the latter shall
						be protected by additional safety valve capacity, if necessary, on the lower
						pressure side of the system. The additional safety valve capacity shall be
						based upon the maximum amount of steam that can flow into the lower pressure
						system. The additional safety valves shall have at least one valve set at a
						pressure not to exceed the lowest allowable pressure and the other valves shall
						be set within a range not to exceed 3% above that pressure.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.36 - Identification of boilers and pressure vessels

Current through June 24, 2024
Boilers and pressure vessels subject to periodic
						inspections shall be identified by a registration number supplied by the
						department. The registration number shall be affixed to the vessel by a
						certified inspector at a location that can be easily viewed.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.37 - Maintenance

Current through June 24, 2024
(1) CORROSION PREVENTION. All boilers and
					 pressure vessels shall be installed and maintained in such a manner as to
					 prevent excessive corrosion and deterioration.
(2) SAFE CONDITIONS. The certified inspector
					 shall note conditions during internal inspection, external inspection, or
					 hydrostatic pressure test and shall order changes or repairs that will place
					 the boiler or pressure vessel in a safe working condition.
Note:
Sections VI and VII of the ASME
						boiler and pressure vessel code, Recommended Rules for Care and Operation of
						Heating Boilers and Recommended Rules for Care of Power Boilers, are excellent
						guides for boiler owners and operators.
(3) MODIFICATION OF BOILER BURNER ASSEMBLY.
					 Any modification to or installation of a boiler burner assembly may not exceed
					 the original stamping of the boiler rated output capacity.
See section
						  SPS
						  341.38 for Department reporting requirements relating
						  to fuel conversions and to modifications for increasing heat input.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.38 - Reporting accidents, repairs and alterations

Current through June 24, 2024
(1) ACCIDENTS.
(a) If a component of a boiler or pressure
					 vessel or power piping fails and causes an injury that needs more than first
					 aid treatment, the owner or user shall report the facts involved to the
					 department on form SBD-10787-E within 24 hours after the accident.
(b) After a failure under par. (a), the owner
					 or user may not remove or disturb the boiler or pressure vessel or power piping
					 or any of the components nor permit any such removal or disturbance prior to
					 receiving authorization from the department or first class city, except for the
					 purpose of saving human life or preventing further property damage.
(c) Any accidents under par. (a) that occur
					 during the department's non-business hours shall also be reported to the state
					 division of emergency management.
Note:
The address for reporting accidents
						to the Department is the Division of Industry Services, Boiler Program, P.O.
						Box 7302, Madison, WI 53707-7302; and the fax number is 608-283-7420.
Note:
The Department can be contacted at
						262/548-8617 during normal business hours. The state Division of Emergency
						Management can be contacted at (800) 943-0003 during non-business hours.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter III - All Installations › Section SPS 341.39 - Condemnation

Current through June 24, 2024
(1) AUTHORITY. Only the department may
					 condemn a boiler or pressure vessel. Any boiler or pressure vessel declared by
					 a certified inspector to be unsafe and beyond repair shall be referred to the
					 department for condemnation proceedings.
(2) SYMBOL.
(a) Any boiler or pressure vessel confirmed
					 by the department to be unsafe for further use shall be stamped as follows:
CONDEMNED"
"Arrowhead Stamp x Wisconsin x Arrowhead
						Stamp"
(b) Letters used for
					 the stamp shall be at least 3/8-inch high and arrowheads shall be at least
					 1/2-inch wide.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.40 - Application

Current through June 24, 2024
This subchapter applies to all boilers and pressure
						vessels, or components thereof, that are installed on or after June 1,
						2012.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.41 - Installation registration

Current through June 24, 2024
(1) BOILER OR
					 PRESSURE VESSEL INSTALLATION REGISTRATION.
(a)
					 Except as provided in par. (b), the installation of any boiler or pressure
					 vessel shall be registered with the department by the installer before the
					 operation of the boiler or pressure vessel. Registration shall be on form
					 SBD-6314-E.
(b) Registration with
					 the department is not required for any of the following:
1. Boilers and pressure vessels exempted from
					 periodic inspections in s.
					 SPS
					 341.18.
2.
					 Installations in cities of the first class if an installation registration form
					 has been filed with the appropriate city official.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.42 - ASME code vessels

Current through June 24, 2024
(1) ASME CODE COMPLIANCE. Except as provided
					 in ss.
					 SPS
					 341.43 to
					 341.45 and
					 341.53(2), boilers
					 and pressure vessels shall be constructed, installed, operated and maintained
					 in accordance with the ASME code, ASME CSD-1 and the NBIC. Boilers and pressure
					 vessels designed to other national or international standards may be approved
					 if the design has been accepted by a nationally recognized independent third
					 party and the department, or if the standard has been accepted by the
					 department.
Note:
Section
						SPS
						341.43 also allows construction of boilers and
						pressure vessels that do not comply with the ASME code, if they comply with
						criteria in a variance issued by the Department. As referenced in section
						SPS 341.05,
						any such variance must comply with chapter
						SPS
						303, which requires establishing an equivalency that
						meets the intent of the rule.
Note:
The Department will recognize the
						applicable case interpretations of the ASME boiler and pressure vessel code as
						being acceptable.
Note:
The ASME code specifies that persons
						installing boiler external piping by welding are required to possess the
						appropriate ASME credentials.
Note:
Design and construction complying
						with Canadian standard CSA B51 is accepted by the Department under this
						section.
(2) REGISTERING
					 WITH NATIONAL BOARD.
(a) Except as provided in
					 par. (b), all boilers and pressure vessels, including any that are constructed
					 and installed in accordance with Canadian standard CSA B51, shall have the
					 manufacturer's data report registered with the National Board and shall bear a
					 National Board number. Copies of the registration shall be provided to the
					 department when requested.
(b) Cast
					 iron sectional boilers and cast aluminum boilers stamped "H" and pressure
					 vessels stamped "UM" are exempt from National Board registration.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.43 - Wisconsin special vessels

Current through June 24, 2024
Where it is not possible or practical to construct a
						boiler or pressure vessel in strict compliance with s.
						SPS 341.42, the
						department may grant a variance to the owner or user to permit the installation
						of the boiler or pressure vessel as a Wisconsin special within the state of
						Wisconsin. The department shall consider a variance request upon receipt of a
						completed petition for variance form and the required fee. The variance may be
						granted under the following conditions:
Note:
See section
						SPS 341.05
						for further explanatory information.
(1) COMPARABLE SAFETY.
(a) When the method of designing or
					 constructing the boiler or pressure vessel is not covered by the ASME code, the
					 department may approve the installation provided adequate proof of comparable
					 safety of the design or construction is shown.
(b) Complete plans, calculations and
					 specifications in duplicate shall be submitted to and approved by the
					 department before installation.
(c)
					 The boiler or pressure vessel shall be stamped "Wisconsin Special" if approved
					 by the department.
(d) All other
					 applicable requirements of the ASME code shall be met.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.44 - U.S. department of transportation vessels

Current through June 24, 2024
department of transportation vessels. Pressure vessels
						bearing the stamping of the United States department of transportation are not
						permitted as permanent storage containers, except they may be used as
						replaceable service cylinders.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.45 - Noncode vessels

Current through June 24, 2024
(1) EXEMPTED VESSELS. The following vessels
					 are not required to be constructed and installed in accordance with the ASME
					 code:
(a) Water heaters and hot-water storage
					 tanks, provided water temperatures do not exceed 210°F.
Note:
See chapter
						SPS
						384 for requirements relating to water heaters and
						hot-water storage tanks.
(b) Vessels for containing water under
					 pressure for domestic supply, including those having an air space for
					 expansion.
(c) Pressure vessels
					 used for the processing or storage of water at water temperatures not exceeding
					 210°F. These vessels may contain a steam or hot water coil or heat
					 exchanger, provided the steam is at or below a pressure of 15 psig and the hot
					 water is at or below a pressure of 160 psig and a temperature of
					 250°F.
(d) Pressure vessels
					 used for water conditioning and filtration.
(e) Pressure vessels used in processing and
					 storing of fermented beverages at temperatures not exceeding
					 140°F.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.46 - Power piping

Current through June 24, 2024
(1) GENERAL. Power piping shall be installed
					 in accordance with ASME B31.1. The use of slip-on flanges shall be limited in
					 applications to no higher than Class 300 primary pressure service rating.
					 Slip-on flanges shall be installed with double fillet welds in accordance with
					 ASME B31.1.
(2) BOILER EXTERNAL
					 PIPING. Boiler external piping within the scope of section I of the ASME code
					 shall be installed in accordance with ASME B31.1.
(3) APPLICATION. This section applies to new
					 systems as well as all replacements, modifications, and alterations to existing
					 systems.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.47 - Multi-boiler installations

Current through June 24, 2024
When hot-water heating boilers are installed in multiples
						with a common header and a common return, isolation valves may be eliminated
						between units and the units may be considered as one boiler provided all of the
						following conditions are met:
(1)
					 OUTPUT LIMIT. No single unit exceeds 500,000 Btu per hour output.
(2) PRESSURE RELIEF. Each unit has a pressure
					 relief device as required by the ASME code, or the common header has a pressure
					 relief device with sufficient relieving capacity for all units in the
					 installation.
(3) CONTROLS. Each
					 unit has operating controls and safety controls acceptable to the
					 department.
(4) LOW-WATER CUTOFF.
					 The fuel supply to each unit is shut off by a low-water cutoff in the event of
					 low water in the system.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.48 - Organic- or synthetic-fluid heat-transfer systems

Current through June 24, 2024
Boilers and coil-type heaters that utilize organic or
						synthetic fluids as a heat-transfer media shall be designed, constructed and
						installed in accordance with the ASME code. Piping for organic or synthetic
						fluids used as a heat-transfer media and subject to temperatures in excess of
						250°F shall be installed in accordance with ASME B31.1.
See sections
						  SPS 341.41(1) and
						  (2) for requirements relating to registering
						  these installations with the Department.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter IV - New Installations › Section SPS 341.49 - Solid-fuel-fired water-heating appliances

Current through June 24, 2024
(1) GENERAL. This
					 section applies to solid-fuel-fired water-heating appliances that are not
					 constructed and installed in accordance with the ASME code.
(2) DESIGN.
(a) A solid-fuel-fired water-heating
					 appliance shall be constructed with self-contained weather proofing or other
					 weather protection acceptable to the department.
(b) A solid-fuel-fired water-heating
					 appliance shall be listed by a nationally recognized testing laboratory
					 acceptable to the department.
Note:
Examples of acceptable testing
						laboratories include, but are not limited to, Underwriters Laboratory (UL) and
						Factory Mutual (FM).
(c) A
					 solid-fuel-fired water-heating appliance shall be designed and constructed for
					 operation at atmospheric pressure and shall be properly vented to prevent a
					 positive pressure condition.
Wisconsin Administrative Code › Department of Safety and Professional Services › SPS 301-399 - Safety, Buildings, and Environment › SPS 326-360 - General, Part II › Chapter SPS 341 - Boilers And Pressure Vessels › Subchapter V - Nuclear Power Plants › Section SPS 341.53 - Application

Current through June 24, 2024
(1) GENERAL. This subchapter applies to all
					 nuclear power facilities existing on or after June 1, 2012.
(2) NRC REQUIREMENTS. Construction,
					 installation, operation, alterations and repairs for nuclear facility
					 components that are regulated by the NRC shall comply with all applicable NRC
					 regulations.
See
						  10 CFR 50.55a
						  to
						  50.57
						  for applicable NRC regulations.