A. A hobby or model boiler shall be inspected every two years inclusive. Itshall be the duty of the owner of any hobby or model boiler to obtain anddisplay an inspection certificate. A hobby or model boiler can be placed innonoperating status upon written notification to the chief inspector. Normalinspection procedures apply when reinstating the boiler.
B. The inspection of every hobby or model boiler shall include an examinationof or for the following:
1. The fusible plug, if provided in the original design.
2. The safety valve or valves. Such valve or valves shall be (i) marked withan American Society of Mechanical Engineers (ASME) stamp, (ii) set at orbelow the maximum allowable working pressure, and (iii) sealed in a mannerthat does not allow tampering with the valve without destroying the seal. Therequirement of clause (i) shall be waived for model boilers upon the passageof an accumulation test.
3. Internal corrosion.
4. Leakage.
5. The boiler power piping, up to and including the first valve.
C. A hobby or model boiler shall be subjected to nondestructive testing, atthe owner's expense, to determine the maximum allowable working pressure inaccordance with Boiler and Pressure Vessel Regulations (16 VAC 25-50-10 etseq.).
D. All hobby and model boilers shall pass a hydrostatic test. The pressureshall be at one and one-quarter maximum allowable working pressure, asdetermined by the inspection certificate and as deemed necessary based oninspections or other evidence. A hobby or model boiler that does not meet therequirements of the ASME code and is not registered in the Commonwealthshall, at the owner's expense, be tested to one and one-half times themaximum allowable working pressure for hobby boilers and twice the maximumallowable working pressure for model boilers and, to be operated, shall havea successful (i) for lap seam and nonstandard welded boilers only, completeradiographic or ultrasonic examination of the long or longitudinal seam; (ii)ultrasonic examination for metal thickness, and for the purpose ofcalculating the maximum allowable working pressure, the thinnest readingshall be used; and (iii) for hobby boilers with lap seam construction, dyepenetrant or magnetic particle examination for cracks with an ultrasonic orradiographic examination of areas where testing shows possible cracks.
The requirements of this subsection for hobby boilers only testing to one andone-half times the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower. If a variance is requested forbutt strap hobby boilers, the Commissioner shall not deny such variancerequest without a given, valid reason.
The requirements of this subsection for model boilers only for testing totwice the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower.
Any boiler which has been without a documented inspection within the pasttwenty years must have a two times maximum allowable working pressure hydrotest prior to its operation.
E. Any hobby or model boiler holding a current out-of-state inspectioncertificate shall be accepted by the Commonwealth of Virginia, provided theinspection standards meet or exceed standards adopted by the Commonwealth.
A. A hobby or model boiler shall be inspected every two years inclusive. Itshall be the duty of the owner of any hobby or model boiler to obtain anddisplay an inspection certificate. A hobby or model boiler can be placed innonoperating status upon written notification to the chief inspector. Normalinspection procedures apply when reinstating the boiler.
B. The inspection of every hobby or model boiler shall include an examinationof or for the following:
1. The fusible plug, if provided in the original design.
2. The safety valve or valves. Such valve or valves shall be (i) marked withan American Society of Mechanical Engineers (ASME) stamp, (ii) set at orbelow the maximum allowable working pressure, and (iii) sealed in a mannerthat does not allow tampering with the valve without destroying the seal. Therequirement of clause (i) shall be waived for model boilers upon the passageof an accumulation test.
3. Internal corrosion.
4. Leakage.
5. The boiler power piping, up to and including the first valve.
C. A hobby or model boiler shall be subjected to nondestructive testing, atthe owner's expense, to determine the maximum allowable working pressure inaccordance with Boiler and Pressure Vessel Regulations (16 VAC 25-50-10 etseq.).
D. All hobby and model boilers shall pass a hydrostatic test. The pressureshall be at one and one-quarter maximum allowable working pressure, asdetermined by the inspection certificate and as deemed necessary based oninspections or other evidence. A hobby or model boiler that does not meet therequirements of the ASME code and is not registered in the Commonwealthshall, at the owner's expense, be tested to one and one-half times themaximum allowable working pressure for hobby boilers and twice the maximumallowable working pressure for model boilers and, to be operated, shall havea successful (i) for lap seam and nonstandard welded boilers only, completeradiographic or ultrasonic examination of the long or longitudinal seam; (ii)ultrasonic examination for metal thickness, and for the purpose ofcalculating the maximum allowable working pressure, the thinnest readingshall be used; and (iii) for hobby boilers with lap seam construction, dyepenetrant or magnetic particle examination for cracks with an ultrasonic orradiographic examination of areas where testing shows possible cracks.
The requirements of this subsection for hobby boilers only testing to one andone-half times the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower. If a variance is requested forbutt strap hobby boilers, the Commissioner shall not deny such variancerequest without a given, valid reason.
The requirements of this subsection for model boilers only for testing totwice the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower.
Any boiler which has been without a documented inspection within the pasttwenty years must have a two times maximum allowable working pressure hydrotest prior to its operation.
E. Any hobby or model boiler holding a current out-of-state inspectioncertificate shall be accepted by the Commonwealth of Virginia, provided theinspection standards meet or exceed standards adopted by the Commonwealth.
A. A hobby or model boiler shall be inspected every two years inclusive. Itshall be the duty of the owner of any hobby or model boiler to obtain anddisplay an inspection certificate. A hobby or model boiler can be placed innonoperating status upon written notification to the chief inspector. Normalinspection procedures apply when reinstating the boiler.
B. The inspection of every hobby or model boiler shall include an examinationof or for the following:
1. The fusible plug, if provided in the original design.
2. The safety valve or valves. Such valve or valves shall be (i) marked withan American Society of Mechanical Engineers (ASME) stamp, (ii) set at orbelow the maximum allowable working pressure, and (iii) sealed in a mannerthat does not allow tampering with the valve without destroying the seal. Therequirement of clause (i) shall be waived for model boilers upon the passageof an accumulation test.
3. Internal corrosion.
4. Leakage.
5. The boiler power piping, up to and including the first valve.
C. A hobby or model boiler shall be subjected to nondestructive testing, atthe owner's expense, to determine the maximum allowable working pressure inaccordance with Boiler and Pressure Vessel Regulations (16 VAC 25-50-10 etseq.).
D. All hobby and model boilers shall pass a hydrostatic test. The pressureshall be at one and one-quarter maximum allowable working pressure, asdetermined by the inspection certificate and as deemed necessary based oninspections or other evidence. A hobby or model boiler that does not meet therequirements of the ASME code and is not registered in the Commonwealthshall, at the owner's expense, be tested to one and one-half times themaximum allowable working pressure for hobby boilers and twice the maximumallowable working pressure for model boilers and, to be operated, shall havea successful (i) for lap seam and nonstandard welded boilers only, completeradiographic or ultrasonic examination of the long or longitudinal seam; (ii)ultrasonic examination for metal thickness, and for the purpose ofcalculating the maximum allowable working pressure, the thinnest readingshall be used; and (iii) for hobby boilers with lap seam construction, dyepenetrant or magnetic particle examination for cracks with an ultrasonic orradiographic examination of areas where testing shows possible cracks.
The requirements of this subsection for hobby boilers only testing to one andone-half times the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower. If a variance is requested forbutt strap hobby boilers, the Commissioner shall not deny such variancerequest without a given, valid reason.
The requirements of this subsection for model boilers only for testing totwice the maximum allowable working pressure or full radiographic orultrasonic examination may be waived after the initial inspection if theinspector finds that the general standards of subsection B are met and thesafety valve or valves are set at the maximum allowable working pressuredetermined by the following: calculations from the ultrasonic results or 100pounds per square inch, whichever is lower.
Any boiler which has been without a documented inspection within the pasttwenty years must have a two times maximum allowable working pressure hydrotest prior to its operation.
E. Any hobby or model boiler holding a current out-of-state inspectioncertificate shall be accepted by the Commonwealth of Virginia, provided theinspection standards meet or exceed standards adopted by the Commonwealth.
