WSR 98-16-079
PROPOSED RULES
BOARD OF BOILER RULES
[Filed August 5, 1998, 8:31 a.m.]
Original Notice.
Preproposal statement of inquiry was filed as WSR 98-09-065.
Title of Rule: Chapter 296-104 WAC.
Purpose: To comply with actions taken by the Board of Boiler Rules and to update current rules using clear rule writing.
Statutory Authority for Adoption: RCW 70.79.030, 70.79.040.
Statute Being Implemented: Duties of board - make definitions, rules and regulations; Boiler Construction Code; Rules and Regulations - Scope.
Summary: WAC 296-104-010 Definitions, adds definition of "hot water heater."
WAC 296-104-017 Administration, replaces WAC 296-104-600. Clear rule writing.
WAC 296-104-100 Inspection, clarifies types of vessels and frequency of inspection, adopts TAPPI TIS 0402-16, allows owner/users latitude for internal inspections. Clear rule writing.
WAC 296-104-102 Inspection, clarifies requirements and wording. Adds use of TAPPI TIS 0402-16. Clear rule writing.
WAC 296-104-180 Inspection, replaces WAC 296-104-800. Clarifies inspection for radioactive systems. Clear rule writing.
WAC 296-104-200 Construction, adopts 1998 ASME codes. Accepts boilers and unfired pressure vessels built to other national or international codes and standards if registered with the national board. Clear rule writing.
WAC 296-104-265 Installation, clarifies requirements for control and limit devices for boilers. Clear rule writing.
WAC 296-104-307 Installation, new section. Defines safety device requirements on boilers and pressure vessels. Clear rule writing.
WAC 296-104-310 Installation, further defines where discharge from safety valves, blow offs and drains be directed. Clear rule writing.
WAC 296-104-405 Existing installation, defines MAWP formula for miniature hobby boilers.
WAC 296-104-502 Repairs, clarifies requirements for repairs and alterations for nonnuclear boilers and pressure vessels.
WAC 296-104-510 Repairs, clarifies "prior approval" for riveted patches.
WAC 296-104-515 Repairs, clarifies repair requirements of nonnuclear safety devices. Clear rule writing.
WAC 296-104-520 Repairs, clarifies actions and repairs allowed when a lap seam crack is discovered along a riveted longitudinal joint. Clear rule writing.
WAC 296-104-530 Repairs, clarifies pressure limits for air or vapor testing.
WAC 296-104-535 Repairs, new section. Replaces WAC 296-104-801. Clarifies requirements for nuclear repairs/replacement. Clear rule writing.
WAC 296-104-540 Repairs, new section. Replaces WAC 296-104-805. Clarifies requirements for nuclear repairs of safety devices.
Sections Repealed or Replaced with New wACs: WAC 296-104-525, 296-104-600, 296-104-800, 296-104-801, and 296-104-805.
Reasons Supporting Proposal: To comply with actions taken by the Board of Boiler Rules to clarify wording, make existing WACs consistent with nationally accepted codes and standards and to respond to industry requests and public safety factors.
Name of Agency Personnel Responsible for Drafting: Board of Boiler Rules, 7273 Linderson Way S.W., Tumwater, (360) 902-5270; and Implementation: Dick Barkdoll, 7273 Linderson Way S.W., Tumwater, (360) 902-5270.
Name of Proponent: Board of Boiler Rules, governmental.
Rule is not necessitated by federal law, federal or state court decision.
Explanation of Rule, its Purpose, and Anticipated Effects: WAC 296-104-010 Definitions, adds definition of "hot water heater."
WAC 296-104-017 Administration, replaces WAC 296-104-600. Clear rule writing.
WAC 296-104-100 Inspection, clarifies types of vessels and frequency of inspection, adopts TAPPI TIS 0402-16 for pulp and paper roll dryers, allows owner/users latitude for internal inspections. Clear rule writing.
WAC 296-104-102 Inspection, clarifies requirements and wording. Adds use of TAPPI TIS 0402-16 for pulp and paper roll dryers. Clear rule writing.
WAC 296-104-180 Inspection, replaces WAC 296-104-800. Clarifies inspection for radioactive systems. Clear rule writing.
WAC 296-104-200 Construction, adopts 1998 ASME codes. Accepts boilers and unfired pressure vessels built to other national or international codes and standards if registered with the national board. This allows installation in state of vessels built to codes other than ASME giving businesses the possibility of cost savings. Clear rule writing.
WAC 296-104-265 Installation, clarifies requirements for boiler control and limit devices. Clear rule writing.
WAC 296-104-307 Installation, new section. Defines safety device requirements on boilers and pressure vessels. Clear rule writing.
WAC 296-104-310 Installation, further defines where discharge from safety valves, blow offs and drains be directed. Clear rule writing.
WAC 296-104-405 Existing installation, defines MAWP formula for miniature hobby boilers. Clear rule writing.
WAC 296-104-502 Repairs, clarifies requirements for repairs and alterations for nonnuclear boilers and pressure vessels.
WAC 296-104-510 Repairs, clarifies "prior approval" for riveted patches. Clear rule writing.
WAC 296-104-515 Repairs, clarifies repair requirements of nonnuclear safety devices. Clear rule writing.
WAC 296-104-520 Repairs, clarifies actions and repairs allowed when a lap seam crack is discovered along a riveted longitudinal joint. Clear rule writing.
WAC 296-104-530 Repairs, clarifies pressure limits for air or vapor testing.
WAC 296-104-535 Repairs, new section. Replaces WAC 296-104-801. Clarifies requirements for nuclear repairs/replacement. Clear rule writing.
WAC 296-104-540 Repairs, new section. Replaces WAC 296-104-805. Clarifies requirements for nuclear repairs of safety devices. Clear rule writing.
Sections Repealed or Replaced with New WACs: WAC 296-104-525, 296-104-600, 296-104-800, 296-104-801, and 296-104-805.
Proposal Changes the Following Existing Rules: See Summary and Explanation of Rule above.
No small business economic impact statement has been prepared under chapter 19.85 RCW. The Board of Boiler Rules and the department have considered whether these rules are subject to the Regulatory Fairness Act and have determined that they are not for the following reasons: The changes made in the attached are for clarification of existing rules of chapter 296-104 WAC and consistency with national codes and standards. Clear rule writing was used in the clarifying and those rules covered elsewhere were deleted. No fees were increased.
Section 201, chapter 403, Laws of 1995, does not apply to this rule adoption. RCW 34.05.328 exempts the Board of Boiler Rules from the significant rules requirements and although the criteria does not apply, the board chooses to apply the criteria.
Hearing Location: Labor and Industries, 7273 Linderson Way S.W., Tumwater, on September 15, 1998, at 10:00 a.m.
Assistance for Persons with Disabilities: Contact Dick Barkdoll by September 14, 1998, (360) 902-5270.
Submit Written Comments to: Dick Barkdoll, Labor and Industries, Boiler Section, P.O. Box 44410, Olympia, WA 98504-4410, fax (360) 902-5272, by September 14, 1998.
Date of Intended Adoption: September 30, 1998.
August 5, 1998
Daryl A. Hoffman
Chairman
OTS-2333.2
AMENDATORY SECTION (Amending WSR 96-21-081, filed 10/16/96, effective 11/16/96)
WAC 296-104-010 Definitions. "Agriculture purposes" shall mean any act performed on a farm in production of crops or livestock, and shall include the storage of such crops and livestock in their natural state, but shall not be construed to include the processing or sale of crops or livestock.
"API-510" shall mean the Pressure Vessel Inspection Code of the American Petroleum Institute with addenda and revisions, thereto made and approved by the institute which have been adopted by the board of boiler rules in accordance with the provisions of RCW 70.79.030.
"ASME Code" shall mean the boiler and pressure vessel code of the American Society of Mechanical Engineers with amendments thereto made and approved by the council of the society which have been adopted by the board of boiler rules in accordance with the provisions of RCW 70.79.030.
"Attendant" shall mean the person in charge of the operation of a boiler or unfired pressure vessel.
"Automatic operation of a boiler" shall mean unattended control of feed water and fuel in order to maintain the pressure and temperature within the limits set. Controls must be such that the operation follows the demand without interruption. Manual restart may be required when the burner is off because of low water, flame failure, power failure, high temperatures or pressures.
"Board of boiler rules" shall mean the board created by law and empowered under RCW 70.79.010.
"Certificate of competency" shall mean a certificate issued by the state board of boiler rules to a person who has passed an examination prescribed by the board of boiler rules.
"Chief inspector" shall mean the inspector appointed under RCW 70.79.100.
"Commission" shall mean an annual state commission/commission card issued to a person in the employ of the state, an insurance company or a company owner/user inspection agency holding a certificate of competency which authorizes them to perform inspections of boilers and/or unfired pressure vessels.
"Condemned boiler or unfired pressure vessel" shall mean a boiler or unfired pressure vessel that has been inspected and declared unsafe or disqualified by legal requirements by an inspector who has applied a stamping or marking designating its condemnation.
"Department" as used herein shall mean the department of labor and industries of the state of Washington.
"Deputy inspector" shall mean an inspector appointed under RCW 70.79.120.
"Director" shall mean the director of the department of labor and industries.
"Domestic and/or residential purposes" shall mean serving a private residence or an apartment house of less than six families.
"Existing installations" shall mean any boiler or unfired pressure vessel constructed, installed, placed in operation, or contracted for before January 1, 1952.
"External inspection" shall mean an inspection made while a boiler or unfired pressure vessel is in operation and includes the inspection and demonstration of controls and safety devices required by these rules.
"Hot water heater" shall mean a closed vessel designed to supply hot water for external use to the system. All vessels must be listed by a nationally recognized testing agency and shall not exceed any of the following limits:
(a) Pressure of 160 psi (1100 kpa);
(b) Temperature of 210 degrees F (99 C);
(c) Capacity of 120 U.S. gallon (454 liters);
(d) Input of 200.000 BTU/hr (58.58 kw).
Each vessel shall be protected with an approved temperature and pressure safety relief valve.
"Inspector" shall mean the chief boiler inspector, a deputy inspector, or a special inspector.
"Internal inspection" shall mean an inspection made when a boiler or unfired pressure vessel is shut down and handholes, manholes, or other inspection openings are open or removed for examination of the interior. An external ultrasonic examination of unfired pressure vessels 36" inside diameter and under, shall constitute an internal inspection.
"Low pressure heating boiler" shall mean a steam or vapor boiler operating at a pressure not exceeding 15 psig or a boiler in which water or other fluid is heated and intended for operation at pressures not exceeding 160 psig or temperatures not exceeding 250 degrees F by the direct application of energy from the combustion of fuels or from electricity, solar or nuclear energy including lined potable water heaters.
"Nationwide engineering standard" shall mean a nationally accepted design method, formulae and practice acceptable to the board.
"NBIC" shall mean the National Board Inspection Code of the National Board of Boiler and Pressure Vessel Inspectors with addenda and revisions, thereto made and approved by the National Board of Boiler and Pressure Vessel Inspectors and adopted by the board of boiler rules in accordance with the provisions of RCW 70.79.030.
"Nonstandard boiler or unfired pressure vessel" shall mean a boiler or unfired pressure vessel that does not bear marking of the codes adopted in WAC 296-104-200.
"Owner" or "user" shall mean a person, firm, or corporation owning or operating any boiler or unfired pressure vessel within the state.
"Owner/user inspection agency" shall mean an owner or user of pressure vessels that maintains an established inspection department, whose organization and inspection procedures meet the requirements of a nationally recognized standard acceptable to the department.
"Place of public assembly" or "assembly hall" shall mean a building or portion of a building used for the gathering together of 50 or more persons for such purposes as deliberation, education, instruction, worship, entertainment, amusement, drinking, or dining or waiting transportation. This shall also include child care centers (those agencies which operate for the care of thirteen or more children), public and private hospitals, nursing and boarding homes.
"Power boiler" shall mean a boiler in which steam or other vapor is generated at a pressure of more than 15 psig for use external to itself or a boiler in which water or other fluid is heated and intended for operation at pressures in excess of 160 psig and/or temperatures in excess of 250 degrees F by the direct application of energy from the combustion of fuels or from electricity, solar or nuclear energy.
"Reinstalled boiler or unfired pressure vessel" shall mean a boiler or unfired pressure vessel removed from its original setting and reset at the same location or at a new location without change of ownership.
"Rental boiler" shall mean any power or low pressure heating boiler that is under a rental contract between owner and user.
"Second hand boiler or unfired pressure vessel" shall mean a boiler or unfired pressure vessel of which both the location and ownership have changed after primary use.
"Special design" shall mean a design using nationwide engineering standards other than the codes adopted in WAC 296-104-200 or other than allowed in WAC 296-104-230.
"Special inspector" shall mean an inspector holding a Washington commission identified under RCW 70.79.130.
"Standard boiler or unfired pressure vessel" shall mean a boiler or unfired pressure vessel which bears the marking of the codes adopted in WAC 296-104-200.
"Unfired pressure vessel" shall mean a closed vessel under pressure excluding:
(a) Fired process tubular heaters;
(b) Pressure containers which are integral parts of components of rotating or reciprocating mechanical devices where the primary design considerations and/or stresses are derived from the functional requirements of the device;
(c) Piping whose primary function is to transport fluids from one location to another;
(d) Those vessels defined as low pressure heating boilers or power boilers.
"Unfired steam boiler" shall mean a pressure vessel in which steam is generated by an indirect application of heat. It shall not include pressure vessels known as evaporators, heat exchangers, or vessels in which steam is generated by the use of heat resulting from the operation of a processing system containing a number of pressure vessels, such as used in the manufacture of chemical and petroleum products, which will be classed as unfired pressure vessels.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 96-21-081, § 296-104-010, filed 10/16/96, effective 11/16/96. Statutory Authority: RCW 70.79.040. 94-21-002, § 296-104-010, filed 10/5/94, effective 11/5/94; 93-12-014, § 296-104-010, filed 5/21/93, effective 6/21/93; 92-11-070, § 296-104-010, filed 5/20/92, effective 6/20/92. Statutory Authority: RCW 70.79.240. 88-01-064 (Order 87-25), § 296-104-010, filed 12/17/87. Statutory Authority: RCW 70.79.040 and 70.79.050. 86-01-088 (Order 85-26), § 296-104-010, filed 12/19/85; Order 72-11, § 296-104-010, filed 7/7/72; Part I, filed 3/23/60.]
NEW SECTION
WAC 296-104-017 Administration--How are rules affected if other rules are invalidated? Should any section, subsection, sentence, clause, phrase, provision or exemption of these rules be declared unconstitutional or invalid for any reason, such invalidity shall not affect the remaining portion or provisions hereof.
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AMENDATORY SECTION (Amending WSR 95-19-058, filed 9/15/95, effective 10/16/95)
WAC 296-104-100 Inspection--((Frequency of inspections.))
How often must boilers and unfired pressure vessels be inspected?
((Power boilers shall be inspected annually both internally and
externally while not under pressure, and annually externally
while under pressure, except organic vapor boilers which shall be
internally inspected biennially and externally annually.
Low pressure heating boilers shall be inspected externally
biennially. They shall in addition be inspected internally
biennially except where construction does not permit an internal
inspection or those nonvapor boilers using glycol, oil, or
adequately treated with a corrosion inhibitor. In addition to
the required external inspection, low pressure steam boilers
shall, as a minimum, have a biennial internal inspection of their
low water fuel cutoff.
Unfired pressure vessels shall be inspected externally
biennially. Where subject to corrosion and construction permits
they shall in addition be inspected internally biennially or at
intervals established in accordance with the NBIC or API-510 when
utilized by an owner/user inspection agency.
When internal intervals are extended by an owner/user
inspection agency, based on the NBIC or API-510, ultrasonic
examination is required at the biennial external certificate
inspection.
Unfired pressure vessels not subject to internal corrosion
shall be inspected externally biennially.)) (1) Power boilers
shall be inspected:
(a) Internally and externally while not under pressure - Annually.
(b) Externally while under pressure - Annually.
(2) Organic vapor boilers shall be inspected:
(a) Internally and externally while not under pressure - Biennially.
(b) Externally while under pressure - Annually.
(3) Low pressure heating boilers shall be inspected:
(a) Internally while not under pressure (except where construction does not permit an internal) - Biennially.
(b) Internal, all steam heating boilers will have as a minimum, an internal of their low water fuel cutoff - Biennially.
(c) Externally while under pressure - Biennially.
(4) Hot water heaters shall be inspected as unfired pressure vessels with no internal required.
(5) Nonvapor boilers using glycol, oil or adequately treated with a corrosion inhibitor shall be inspected: Externally while under pressure - Biennially.
(6) Unfired pressure vessels shall be inspected:
(a) Externally - Biennially.
(b) Internally:
(i) When subject to corrosion and construction permits - Biennially; or
(ii) Vessels in an owner/user inspection program may follow intervals established by the NBC or API-510 provided NDE is performed at the biennial external; or
(iii) Pulp or paper dryer rolls may be inspected on a five-year basis in accordance with TAPPI TIS 0402-16 provided the owner has established a written inspection program accepted by the inspector that includes the minimums in section 8, which are requirements; or
(iv) Vessels not subject to corrosion do not require an internal.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 95-19-058, § 296-104-100, filed 9/15/95, effective 10/16/95. Statutory Authority: RCW 70.79.040. 94-21-002, § 296-104-100, filed 10/5/94, effective 11/5/94; Part III, § 1, filed 3/23/60.]
AMENDATORY SECTION (Amending WSR 96-21-081, filed 10/16/96, effective 11/16/96)
WAC 296-104-102 Inspection--What are the standards for in-service inspection((.))? (1) Where a conflict exists between the
requirements of the following standards listed below and this
chapter, this chapter shall prevail.
(2) The standard for ((nonnuclear)) inspection of nonnuclear
boilers, unfired pressure vessels, and safety devices is the
National Board Inspection Code (NBIC), 1995 edition, with
addenda. This code may be used on or after the date of issue and
becomes mandatory twelve months after adoption by the board as
specified in RCW 70.79.050(2).
(3) The standard for ((nuclear)) inspection of nuclear items
is ((the)) ASME section XI ((code)). The ASME ((section XI))
Code ((year)) edition and addenda shall be as specified in the
owner in-service inspection program plan.
(4) Where a petroleum or chemical process industry
owner/user inspection agency so chooses, the standard for
inspection of unfired pressure vessels used by the owner shall be
the API-510((, March 1992 seventh)) Pressure Vessel Inspection
Code, eighth edition, with supplements. This code may be used on
or after the date of issue.
((Where a conflict exists between the requirements of the
above standards and this chapter, this chapter shall prevail.))
(5) TAPPI TIS 0402-16, dated 1995 may be used for both pulp dryers and paper machine dryers when requested by the owner. When requested by the owner, this document becomes a requirement and not a guideline.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 96-21-081, § 296-104-102, filed 10/16/96, effective 11/16/96. Statutory Authority: RCW 70.79.040. 94-21-002, § 296-104-102, filed 10/5/94, effective 11/5/94.]
NEW SECTION
WAC 296-104-180 Inspection--How are radioactive systems inspected? An alternative means of inspection is allowed when a pressure vessel has radioactive contamination that would not allow entering for visual inspection. The inspector and owner shall work out a program of nondestructive examination that shall ascertain the condition of the vessel to assure its integrity.
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AMENDATORY SECTION (Amending WSR 97-20-109, filed 9/30/97, effective 10/31/97)
WAC 296-104-200 Construction--What are the standards for
new construction((.))? The standards for new construction are
((the)):
(1) ASME Boiler and Pressure Vessel Code, 1998 edition,
Sections I, III, IV, VIII, X, and CSD-1 (for boilers with fuel
input ratings less than 12,500,000 BTU/hr) ((1995 edition, and
the));
(2) ASME/ANSI PVHO-1 (Standard for Pressure Vessels for Human Occupancy), 1987 edition; and
(3) Standards of construction meeting Criteria for Registration of Boilers, Pressure Vessels and Other Pressure Retaining Items, Revision 2, provided the boilers and unfired pressure vessels are registered with the National Board. These codes and standards may be used on or after the date of issue and become mandatory twelve months after adoption by the board as specified in RCW 70.79.050(2). The board recognizes that the ASME Code states that new editions of the code become mandatory on issue and that subsequent addenda become mandatory six months after the date of issue. For nuclear systems, components and parts the time period for addenda becoming mandatory is defined in the Code of Federal Regulations.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 97-20-109, § 296-104-200, filed 9/30/97, effective 10/31/97; 96-21-081, § 296-104-200, filed 10/16/96, effective 11/16/96. Statutory Authority: RCW 70.79.040. 93-12-014, § 296-104-200, filed 5/21/93, effective 6/21/93; 92-11-070, § 296-104-200, filed 5/20/92, effective 6/20/92; 91-11-107, § 296-104-200, filed 5/22/91, effective 6/22/91; 90-04-009, § 296-104-200, filed 1/26/90, effective 2/26/90. Statutory Authority: RCW 70.79.040 and 70.79.050. 86-01-088 (Order 85-26), § 296-104-200, filed 12/19/85. Statutory Authority: RCW 70.79.030 and 70.79.330. 84-11-016 (Order 84-09), § 296-104-200, filed 5/10/84; 82-24-025 (Order 82-36), § 296-104-200, filed 11/23/82, effective 1/1/83. Statutory Authority: RCW 70.79.030. 82-05-003 (Order 82-2), § 296-104-200, filed 2/4/82; 81-12-012 (Order 81-10), § 296-104-200, filed 5/28/81; 81-01-114 (Order 80-28), § 296-104-200, filed 12/24/80; 80-05-065 (Order 80-7), § 296-104-200, filed 4/23/80; 79-05-054 (Order 79-7), § 296-104-200, filed 4/30/79; 78-10-096 (Order 78-19), § 296-104-200, filed 10/3/78; Order 77-23, § 296-104-200, filed 11/8/77; Order 77-9, § 296-104-200, filed 5/26/77; Order 75-35, § 296-104-200, filed 10/29/75; Order 74-37, § 296-104-200, filed 11/8/74; Order 73-1, § 296-104-200, filed 3/22/73; Order 72-17, § 296-104-200, filed 9/28/72; Order 72-11, § 296-104-200, filed 7/7/72; Part IV, § 1, filed 3/23/60.]
AMENDATORY SECTION (Amending WSR 97-20-109, filed 9/30/97, effective 10/31/97)
WAC 296-104-265 Installation--What control and limit
devices((.)) are required on boilers? (1) Installations prior to
June 1989: All automatically fired steam, vapor, or hot water
boilers except boilers having a constant attendant who has no
other duties while the boiler is in operation, shall be equipped
with:
(a) An automatic low-water fuel cut-off; and
(b) An automatic water feeding device. ((These may be
incorporated in one body or may be separate devices. Designs
embodying a float and float bowl shall have a vertical straight-away valve drain pipe at lowest point in the water equalizing
pipe connection by which the bowl and equalizing pipe can be
flushed and the device tested. Immersion units))
(c) All devices shall be designed so that they may be readily tested at frequent intervals.
(2) Installations from June 1998 to December 1998:
(a) All boilers ((installed after June 1989)) that are
automatically fired low pressure steam heating boilers, small
power boilers, and power steam boilers without a constant
attendant who has no other duties shall be equipped with:
(i) Two high steam pressure limit controls, ((one)) the
highest of which shall be provided with a manual reset ((on the
control with the highest setting, and)).
(ii) Two low-water fuel cut-offs, one of which shall be provided with a manual reset device and independent of the feed water controller.
(iii) Coil type flash steam boilers may use two high-temperature limit controls, one of which shall ((be manually))
have a manual reset ((in the hot water coil section of the
boiler)). This is instead of the low-water fuel cut-off.
(iv) All control and limit devices shall be independently connected and electrically wired in series.
(b) All automatically fired hot water supply, low-pressure hot water heating boilers, and power hot water boilers shall be equipped with:
(i) Two high-temperature limit controls, one of which shall
be provided with a manual reset ((on the control with the highest
setting, and)).
(ii) One low-water fuel cut-off with a manual reset and independent of the feed water controller.
(iii) For coil type hot water boilers a low-water flow limit control installed in the circulating water line may be used instead of a low-water fuel cut-off.
(iv) All control and limit devices shall be independently connected and electrically wired in series.
(3) Installations or refits of gas, oil, or combinations of
gas or oil after December 1998: All boilers excluding lined
potable water heaters installed or refitted after December 1998,
with fuel input ratings of less than 12,500,000 BTU/hr which are
fired by gas, oil, or a combination of gas or oil shall comply
with ((any additional)) the fuel train requirements defined in
ASME CSD-1 ((where applicable)), as adopted in WAC 296-104-200
where applicable.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 97-20-109, § 296-104-265, filed 9/30/97, effective 10/31/97. Statutory Authority: RCW 70.79.240. 88-01-064 (Order 87-25), § 296-104-265, filed 12/17/87; Part IV, § 14, filed 3/23/60.]
NEW SECTION
WAC 296-104-307 Installation--What safety devices are required on boilers and pressure vessels? All boiler and pressure vessels shall be safeguarded by safety valves, safety relief valves, or rupture discs unless they are safeguarded by a fail safe pressure relief control system, evaluated by a professional engineer licensed by the state of Washington and accepted by the chief inspector.
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AMENDATORY SECTION (Amending WSR 97-20-109, filed 9/30/97, effective 10/31/97)
WAC 296-104-310 Installation--Where should the discharge from safety valves, blow offs and drains be directed? Direct the discharge from safety valves, blow offs and drains to prevent injury to personnel or property. Run the discharge line outside the building from single or multiple safety valves on boilers, pressure vessels or headers with a capacity of 5,000 pounds of steam per hour or more.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 97-20-109, § 296-104-310, filed 9/30/97, effective 10/31/97; Part V, § 3, filed 3/23/60.]
AMENDATORY SECTION (Amending WSR 97-20-109, filed 9/30/97, effective 10/31/97)
WAC 296-104-405 Existing installation--How can the maximum allowable working pressure be established for nonstandard boilers or unfired pressure vessels? The maximum allowable working pressure MAWP shall be established as follows:
(1) For nonstandard steel low pressure steam heating boilers the MAWP shall be computed from the formula in subsection (5) of this section not exceeding 15 psi steam.
(2) For nonstandard steel low pressure water heating boilers the MAWP shall be computed from the formula in subsection (5) of this section not exceeding 160 psi.
(3) For nonstandard cast iron low pressure steam heating boilers the MAWP shall not exceed 15 psi steam.
(4) For nonstandard cast iron low pressure water heating boilers the MAWP shall not exceed 30 psi.
(5) For boilers and unfired pressure vessels not listed above, where the original code of construction is unknown, the following formula will be used.
(6) For miniature hobby boilers the MAWP shall be computed using the formulas referenced in the ASME Code Section I, but the MAWP may not exceed 150 psi. For these formulas the maximum allowable stress (MAS) value shall be 0.75 times the maximum stress at 400 degrees F. in ASME Code Section II Part D, for listed materials or as set by the department for nonlisted materials.
|
ts x t x e |
= m a w p |
| r x fs |
ts
=
Tensile Strength in psi as given in ASME
Code, when material cannot be identified use
55,000 for steel and 45,000 for wrought iron. t
=
thickness in inches of the thinnest part
determined by actual measurement. e
=
efficiency of longitudinal joint or ligament,
whichever is the least, determined by the rules
and formula in the ASME Code. When
construction methods are not known welded
joint efficiency will be 70%. r
=
radius of largest course in inches. fs
=
Factor of Safety, for boilers shall be a
minimum of 5. For boilers with a longitudinal
lap seam it shall be a minimum 8. Boilers
with a longitudinal lap seam, unless granted a
special permit, may only be used at a
maximum of 15 psi provided they have passed
inspection. The minimum for unfired pressure
vessels shall be 4 when less than 20 years old,
4 1/2 when over 20 years old.
[Statutory Authority: RCW 70.79.030 and 70.79.040. 97-20-109, § 296-104-405, filed 9/30/97, effective 10/31/97; Part VI, § 2, filed 3/23/60.]
AMENDATORY SECTION (Amending WSR 94-21-002, filed 10/5/94, effective 11/5/94)
WAC 296-104-502 Repairs--What are the requirements for
nonnuclear ((and alterations to)) boilers and pressure
vessel((s.)) repairs and alterations? Repairs and alterations to
nonnuclear boilers and pressure vessels shall be made in
accordance with the rules of the National Board Inspection Code
(NBIC) as adopted in WAC 296-104-102.
Repairs/alterations may be made by:
(1) An organization in possession of a valid Certificate of Authorization for use of the "R" symbol stamp, issued by the National Board provided such repairs/alterations are within the scope of the authorization.
(2) An organization authorized by the chief inspector and in possession of a valid ASME Certificate of Authorization provided such repairs/alterations are within the scope of the organization's Quality Control System. The chief inspector may limit or restrict repairs/alterations for cause.
Owner/user special inspectors may only accept repairs/alterations to unfired pressure vessels operated by their respective companies per RCW 70.79.130.
Where required, reports of welded repairs/alterations, signed by the organization and a commissioned inspector shall be submitted to the department.
[Statutory Authority: RCW 70.79.040. 94-21-002, § 296-104-502, filed 10/5/94, effective 11/5/94.]
AMENDATORY SECTION (Amending Part VII, filed 3/23/60)
WAC 296-104-510 Repairs--Do riveted patches((.)) require
prior approval? ((In)) Yes, prior to applying riveted patches
the design of the patch and method of installation ((is subject
to approval of)) shall be approved by the inspector.
[Part VII, § 3, filed 3/23/60.]
AMENDATORY SECTION (Amending Order 86-01, filed 2/4/86)
WAC 296-104-515 ((Nonnuclear)) Repairs--What are the
requirements for repair of nonnuclear safety devices((.))? ((All
boilers and pressure vessels shall be safeguarded by safety
valves, safety relief valves, or rupture discs, as specified in
the ASME Code.))
The resetting, repairing, and restamping of safety valves and relief valves shall be done by a qualified manufacturer or valve repair organization holding a valid "V," "UV," or "VR" Certificate of Authorization issued by the National Board of Boiler and Pressure Vessel Inspectors. Section IV safety valves shall be repaired only by the valve manufacturer.
Boiler and pressure vessel users, however, may authorize external adjustments to be made to bring their installed safety valves and relief valves, except Section IV safety valves, back to the stamped set pressure. This adjustment shall be witnessed and approved by a National Board Commissioned Inspector. All such external adjustments shall be resealed showing the identification of the organization making the adjustments and the date.
Repairing of noncode relief or safety valves shall not be allowed, except as specified below. Noncode liquid relief valves installed prior to 1-1-85 shall be repaired by an organization holding a valid "V," "UV," or "VR" Certificate of Authorization, but need not be stamped.
[Statutory Authority: RCW 70.79.030. 86-04-059 (Order 86-01), § 296-104-515, filed 2/4/86. Statutory Authority: RCW 70.79.030 and 70.79.330. 84-21-012 (Order 84-20), § 296-104-515, filed 10/5/84; Part VII, § 4, filed 3/23/60.]
AMENDATORY SECTION (Amending Part VII, filed 3/23/60)
WAC 296-104-520 Repairs--When a lap seam crack((.)) is
discovered along a riveted longitudinal joint what action is
required and what repairs are allowed? (1) A "lap seam crack" is
a crack found in riveted lap seams, extending parallel to the
longitudinal joint and located either between or adjacent to
rivet holes.
(2) The shell or drum of ((a)) any boiler or unfired
pressure vessel in which a lap seam crack is discovered along a
longitudinal riveted joint shall be immediately discontinued from
use.
(3) If the boiler or unfired pressure vessel 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 of the chief inspector).
(4) If the boiler or unfired pressure vessel is over 15 years of age the shell or drum of the boiler or unfired pressure vessel shall be replaced.
(5) Patching of a lap seam 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.))
[Part VII, § 5, filed 3/23/60.]
AMENDATORY SECTION (Amending WSR 92-11-070, filed 5/20/92, effective 6/20/92)
WAC 296-104-530 Repairs--Air or vapor testing. Testing by
air or vapor at pressures in excess of 15 ((lbs.)) psig shall not
be undertaken without special permission from the inspector.
[Statutory Authority: RCW 70.79.040. 92-11-070, § 296-104-530, filed 5/20/92, effective 6/20/92; Part VII, § 7, filed 3/23/60.]
NEW SECTION
WAC 296-104-535 Repairs--What are the requirements for nuclear repairs/replacement? (1) Repairs/replacement to all nuclear components, appurtenances, and their supports shall conform to the rules contained in the ASME Section XI Code. The ASME Code edition and addenda shall be as specified in the owner in-service inspection program plan.
(2) Where a repair/replacement is performed, a report as required by ASME Section XI Code, signed by the owner and the authorized nuclear in-service inspector shall be submitted to the jurisdiction.
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NEW SECTION
WAC 296-104-540 Repairs--What are the requirements for nuclear repairs of safety devices. All nuclear components shall be safe-guarded by safety devices, as specified in the ASME Section III Code.
(1) The resetting, repair, and restamping of these safety devices shall be performed only by organizations holding a valid ASME "N" Certificate of Authorization to repair ASME Section III Code safety devices.
(2) Nuclear plant owners with an approved ASME Section XI program, may authorize resetting, repairing or replacement of their safety devices.
(3) Resetting, repairing or replacement activities shall be witnessed and approved by an inspector, with appropriate National Board endorsements.
(4) All repaired safety devices shall be resealed showing the identification of the organization making the repair and the date.
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REPEALER
The following sections of the Washington Administrative Code are repealed:
WAC 296-104-525 Repairs--Hydrostatic pressure tests.
WAC 296-104-600 General requirements--Conditions not covered by these rules.
WAC 296-104-800 Inspection of systems subject to radioactivity.
WAC 296-104-801 Nuclear repairs/replacement.
WAC 296-104-805 Nuclear repairs--Safety devices.