This consolidation is unofficial and is for reference only. For the official version of the regulations, consult the original documents on file with the Registry of Regulations, or refer to the Royal Gazette Part II. Regulations are amended frequently. Please check the list of Regulations by Act to see if there are any recent amendments to these regulations filed with the Registry that are not yet included in this consolidation. Although every effort has been made to ensure the accuracy of this electronic version, the Registry of Regulations assumes no responsibility for any discrepancies that may have resulted from reformatting. This electronic version is for your personal use and may not be copied for the purposes of resale in this or any other form.
Steam Boiler and Pressure Vessel Regulations
made under Section 4 of the
Steam Boiler and Pressure Vessel Act
R.S.N.S. 1989, c. 444
November 25, 1958, N.S. Reg. 19/58
as amended up to O.I.C. 2008-176 (March 31, 2008, effective April 1, 2008), N.S. Reg. 218/2008
Table of Contents
Part II - Scope and Application of Regulations
Part III - Design and Construction
Minimum diameter of safety valves
Part IV - Requirements for Repairs to Steam Boilers,
Refrigeration Plants and Pressure Vessels
Part V - Existing Installations
Crushing strength of mild steel
Safety valves for steam boilers
Inspector’s test gauge connection
Part VI - Inspection and Certificates
Part VII - Fees in Respect of Construction
Refineries, petrochemical and other similar piping systems
Additions to or alterations of a pressure piping system
Additional fees for design survey
Installation and periodic inspection fees
Inspection on weekend and statutory holidays
Special inspection, shop inspections and special services
“A” - Certificate of Construction
“B” - Certificate of Installation
“C” - Certificate of General Inspection
1 In these regulations, unless the context otherwise requires, the expression
(a) “Act” means the Steam Boiler and Pressure Vessel Act;
(b) “A.S.M.E.” means American Society of Mechanical Engineers;
(c) “Certificate” means an approval in writing by the Chief Inspector or an inspector of any steam boiler or pressure vessel or refrigeration plant with respect to the construction, installation or inspection thereof;
(d) “C.S.A.” means Canadian Standards Association;
(e) “design” includes the blueprints, specifications and specimens or models submitted to the Chief Inspector for approval and registration;
(f) “fittings” includes safety valves, stop valves, automatic stop and check valves, blow-off valves, reducing valves, feed water stop and check valves, water gauges, gauge cocks and pressure gauges;
(g) “inspector” means the Chief Inspector or an inspector appointed under the Steam Boiler and Pressure Vessel Act, and includes any person authorized under the Act to make an inspection;
(h) “N.B. of B. & P.V.I.” means National Board of Boiler and Pressure Vessel Inspectors;
(i) “owner” means any person who is the owner or lessee of a steam boiler, refrigeration plant or pressure vessel or who is the manager or other head officer in charge of the business of such persons;
(j) “p.s.i.” means pounds per square inch;
(k) “second hand” means a steam boiler, refrigeration plant or pressure vessel of which both the ownership and location are changed;
(l) “steam plant” means the complete installation of steam boilers and appliances operated by steam under the same management and in the same undertaking.
Part II - Scope and Application of Regulations
2 These regulations apply to all steam boilers, pressure vessels and refrigeration plants as defined in the Act.
3 Except where the same are inconsistent with these regulations, the existing A.S.M.E. Code and Addenda as adopted by C.S.A. and their regulations shall serve as a guide for the design, specifications for material, construction welding, installation and inspection of steam boilers, refrigeration plants, pressure vessels and their fittings during construction, reconstruction, installation and repair and afterwards. The Chief Inspector may accept as a guide the N.B. of B. & P.V.I. recommended rules for repairs to steam boilers and pressure vessels. Subject to these regulations, the publications of the Canadian Standards Association B-52, Mechanical Refrigeration Code as amended from time to time, shall be deemed to contain the rules that shall be referred to by the Chief Inspector and the Inspectors in carrying out their duties under these regulations in reference to the approval of designs, the manufacture, installation, inspection, testing or operation of refrigeration plants.
Part III - Design and Construction
4 No person shall commence the construction of any steam boiler, refrigeration plant or pressure vessel in the province or of any steam boiler, refrigeration plant or pressure vessel to be used in the province unless and until the plans and specifications have been submitted to and approved by the Chief Inspector.
5 On completion of the construction of any steam boiler, refrigeration plant or pressure vessel the maker shall supply the Chief Inspector with an affidavit certifying that such steam boiler, refrigeration plant or pressure vessel has been constructed in conformity with plans and specifications approved by the Chief Inspector.
6 All steam boilers, refrigeration plants, or pressure vessels constructed outside the Province and to be used within the Province shall be registered in the office of the Chief Inspector, and for this purpose the plans and specifications of such steam boilers, refrigeration plants, or pressure vessels shall be supplied to the Chief Inspector.
7 The maker of every steam boiler, refrigeration plant or pressure vessel constructed outside the Province and to be used within the Province shall furnish the Chief Inspector with a specification sheet supported by an affidavit, in such form as the Chief Inspector may prescribe, establishing the quality of the materials and labour in the plans and specifications submitted to the Chief Inspector in accordance with these regulations.
8 Any steam boiler, refrigeration plant or pressure vessel whether being constructed in the Province or outside the Province and to be used within the Province may be inspected at any time during construction by an inspector or by any other person designated by the Chief Inspector.
9 Whenever the construction of a steam boiler, refrigeration plant or pressure vessel is completed the steam boiler, refrigeration plant or pressure vessel shall be subjected to a hydrostatic test of 1 1/2 times the maximum allowable working pressure. The pressure shall be under proper control so that in no case shall the required test pressure be exceeded by more than 6 percent. The temperature of the water shall be between sixty degrees and one hundred degrees Fahrenheit. During any hydrostatic test the safety valve or valves shall be removed or each valve disk shall be held to its seat by means of a testing clamp and not by screwing down the compression screw upon the spring. Every such test shall be made only under the supervision of an inspector or other person whose qualifications for [the] purpose are satisfactory to the Chief Inspector.
10 Every steam boiler, refrigeration plant or pressure vessel shall, during construction, be equipped with a test pump and necessary connections for test purposes for the use of the inspector or other person making an inspection provided for by these regulations.
11 The highest efficiency of any rivetted joint allowed for calculation purposes will be 0.942. Chain rivetted joints are prohibited for use under these regulations.
12 Rivetted longitudinal joints of a steam boiler shell or drum which exceeds 36” in diameter shall be of butt and double strap construction. This rule does not apply to the portion of a steam boiler shell which is stay-bolted to the fire box sheet or to a pressure vessel described in the Act.
13 The longitudinal joints of a steam boiler shell or drum which does not exceed 36” in diameter may be of lap rivetted construction but the maximum allowable working pressure shall not exceed 100 pounds per square inch.
14 Dead weight of weighted-lever safety valves shall not be used.
Minimum diameter of safety valves
15 The diameter of a safety valve used on a steam boiler shall be not less than one inch.
16 High and low water alarms in water columns will not be allowed, except of a type approved by the Chief Inspector.
17 The minimum internal diameter of the pipes connecting the water column to a steam boiler shall be as follows: up to and including 36” diameter of steam boiler, 1 inch; above 36” diameter, 1 1/4”. Shut-offs must be used on the connection to a water column, they shall be of the outside-screw-and-yoke type valves.
18 Automatic shut off valves on water gauges will not be allowed except of a type approved by the Chief Inspector.
19 Every steam boiler over 30” diameter shall have the gauge cocks and water glass mountings at least 3/4” pipe thread connections to the steam boiler.
20 Every steam boiler operated shall be equipped with a fusible plug except when operated at a working pressure in excess of 250 pounds.
21 The returning of flue gasses over the top of steam boilers in contact with the shell is not recommended and in the case of high pressure horizontal return tubular steam boilers will not be permitted. Back arches shall be set in such a manner as to allow for the free expansion of the steam boiler and placed clear of the fusible plug.
22 When steam boilers are replaced or new steam boilers are installed in either existing or new buildings, a minimum height of at least seven feet shall be provided between the top of the steam boiler proper and the ceiling except in single installations of self-contained steam boilers where a minimum height of at least three feet shall be provided between the highest point of any valve stem or fitting and the ceiling and excepting such special cases as the Chief Inspector gives permission for a lesser clearance as defined in this regulation.
23 All exits from the boiler shall open outward except in cases where the Chief Inspector permits some other type of exit construction.
Part IV - Requirements for Repairs to Steam Boilers,
Refrigeration Plants and Pressure Vessels
24 No person shall make repairs by welding without first having approval of an inspector, who shall, if necessary, make an inspection before granting approval of the contemplated repairs.
25 When the strength of the structure is dependent upon the strength of the weld, the repair shall be made by a “qualified” welding operator. The term “qualified welding operator” means a person who has passed the qualification tests required by the existing A.S.M.E. Power Boiler Code or Section 9 of the A.S.M.E. Code for Welding Qualifications. Reports of such tests shall be kept by his employer and shall be available for review by an inspector. An inspector may at any time call for and witness a qualification test of any welding operator.
26 Every person who makes welded repairs to steam boilers, pressure vessels and refrigeration plants shall furnish the Department a report of every welded repair, and shall retain a copy for the review of an inspector.
27 All repairs shall be carried out under the rules as recommended in Part II(3) of the[se] regulations.
Part V - Existing Installations
28 Existing installations, insofar as the application of these rules and regulations are concerned, shall mean all steam boilers, refrigeration plants, pressure vessels and fittings installed and ready for use or being used at the time these regulations are passed.
29 Except as otherwise provided in these regulations the maximum allowable working pressure is that determined by employing the factors of safety, stresses, and dimensions designated in the A.S.M.E. Rules.
No steam boiler, refrigeration plant or pressure vessel shall be operated at a pressure higher than the maximum allowable working pressure except when the safety valve or valves are blowing, at which time the maximum allowable working pressure shall not be exceeded by more than 6 percent.
Wherever the term “maximum allowable working pressure” is used herein, it refers to gauge pressure, or the pressure above the atmosphere, in pounds per square inch.
30 (a) When the thickness of the shell does not exceed one-half of the inside radius, the maximum allowable working pressure on the cylindrical shell of a steam boiler, pressure vessel or drum shall be determined by the strength of the weakest course computed from the thickness of the plate, the efficiency of the longitudinal joint, or of the ligament between openings (whichever is the least), the inside radius of the course, and the maximum allowable unit working stress.
P = (SEt)/(R + 0.6t) or t = PR/(SE - 0.6P)
where
P = maximum allowable working pressure, pounds per square inch,
S = maximum allowable unit working stress, pounds per square inch, taken from Table P-7, A.S.M.E. except for shells or headers of seamless or fusionwelded construction exceeding 1/2 inch in thickness, which shall be built under the provisions of A.S.M.E.,
E = efficiency of longitudinal joints or of ligaments between openings:
for rivetted joints - calculated rivetted efficiency;
for fusion-welded joints - efficiency specified in A.S.M.E.;
for seamless shells - 100 percent (unity);
for ligaments between openings, the efficiency shall be calculated by the rules given in A.S.M.E.,
t = minimum thickness of shell plates in weakest course, inches,
R = inside radius of the weakest course of the shell or drum, inches.
The maximum allowable working pressure for shells other than cylindrical, and for heads and other parts, shall be determined in a similar manner using the formulas appropriate for the parts, as otherwise given in the A.S.M.E. Code or some other acceptable formula.
31 The age limit of a steam boiler having a longitudinal lap-joint and carrying over 50 pounds pressure shall be twenty-five years, except that no lap-joint steam boiler shall be discontinued from service solely on account of age.
32 Second-hand steam boilers or pressure vessels shall have a maximum allowable working pressure not exceeding that as determined by the formula in Rule [Regulation] 30 for shells. The maximum allowable working pressure of other parts shall be determined in a similar manner using the formulas appropriate for the parts, as given in the A.S.M.E. Code or some other acceptable formula.
33 Any inspector may, with the approval of the Chief Inspector, increase the factor of safety on any steam boiler, refrigeration plant or pressure vessel when he considers the workmanship, material, condition or installation is such that an increased factor of safety is necessary.
34 Any steam boiler shell or drum already in use or to be used having a diameter over 36” and when the longitudinal joint is of lap seam construction shall have a factor of safety of at least 5.5 unless the Chief Inspector agrees to a lesser factor of safety.
35 The shell or drum of a steam boiler in which typical “lap seam crack” is discovered along a longitudinal rivetted joint for either butt seam or lap joint shall be permanently discontinued for use under steam pressure. 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 [a] rivet hole.
36 When the tensile strength of steel or wrought iron shell plates is not known, it shall be taken as 55,000 pounds per square inch for steel and 45,000 pounds per square inch for wrought iron.
37 In computing the ultimate strength of rivets in shear, the following values in pounds per square inch of the cross-sectional area of the rivet shank shall be used:
Iron rivets in single shear 38,000
Iron rivets in double shear 76,000
Steel rivets in single shear 44,000
Steel rivets in double shear 88,000
The cross-sectional area used in the computations shall be that of the rivet shank after driving.
Crushing strength of mild steel
38 The resistance to crushing of mild steel shall be taken at 95,000 pounds per square inch of cross-sectional area.
39 When the diameter of the rivet holes in the longitudinal joints of a steam boiler is not known, the diameter and cross-sectional area of rivets, after driving, may be ascertained from table A-13, or by cutting out one rivet in the body of the joint.
Table A-13 - Sizes of Rivets Based on Plate Thickness
Thickness of plate, in. 1/4 9/32 5/16 11/32 3/8 13/32
Diameter of rivet after driving, in. 11/16 11/16 3/4 3/4 13/16 13/16
Thickness of plate, in. 7/16 15/32 1/2 9/16 5/8 ----
Diameter of rivet after driving, in. 15/16 15/16 15/16 1 1/16 1 1/16 ----
Safety valves for steam boilers
40 The safety valve capacity of each steam boiler or pressure vessel shall be such that the safety valve or valves will discharge all the steam that can be generated by the steam boiler and relieve any pressure in a pressure vessel without allowing the pressure to rise more than 6 percent above the highest pressure to which any valve is set.
41 One or more safety valves on every steam boiler or pressure vessel shall be set at or below the maximum allowable working pressure. The remaining valves may be set within a range of 3 percent above the maximum working pressure, but the range of setting of all of the valves on a steam boiler shall not exceed 10 percent of the highest pressure to which any valve is set.
When steam boilers or pressure vessels of different maximum allowable working pressure with minimum safety valve settings varying more than 6 percent 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 which 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 percent above that pressure.
42 Safety valve capacity may be checked in any one of three different ways and, if found sufficient, additional capacity need not be provided.
I By making an accumulation test, that is, by shutting off all other steam discharge outlets from the steam boiler or pressure vessel and forcing the fires to the maximum. The safety valve equipment shall be sufficient to prevent an excess pressure beyond that specified in (A.S.M.E.) Power Boilers.
II By measuring the maximum amount of fuel that can be burned and computing the corresponding evaporative capacity upon the basis of the heat value of the fuel (A.S.M.E. Power Boilers).
III By determining the maximum evaporative capacity by measuring the feedwater. The sum of the safety-valve capacities shall be equal to or greater than the maximum evaporative capacity of the boiler.
43 When additional valve capacity is required, any valves added shall conform to the requirements of A.S.M.E. Power Boilers.
44 Safety valves shall be connected to the steam boiler or pressure vessel independently of any other steam connection. They shall be attached as close to the steam boiler or pressure vessel as possible without any unnecessary intervening pipe or fitting. No valve of any description shall be placed between the safety valve and the steam boiler or pressure vessel nor on the discharge pipe between the safety valve and the atmosphere. When a discharge pipe is used, it shall be not less than the full size of the valve and the discharge pipe shall be fitted with an open drain to prevent water lodging in the upper part of the safety valve or in the pipe. If a muffler is used on a safety valve it shall have sufficient outlet area to prevent back pressure from interfering with the proper operation and discharge capacity of the valve. The muffler plates or other devices shall be so constructed as to avoid any possibility of restriction of the steam passages due to deposit. When an elbow is placed on a safety-valve discharge pipe, it shall be securely anchored and supported. All safety-valve discharges shall be so located or piped as to be carried clear from running boards or working platforms used in controlling the main stop valves of steam boilers, pressure vessels or steam headers.
45 Each steam boiler shall have at least one water glass, the lowest visible part of which shall be not less than 2 in. above the lowest permissible water level. The water gauge glass shall be provided with a valved drain piped to a safe location.
46 Each steam boiler shall have three or more gauge cocks, located within the range of the visible length of the water glass, when the maximum allowable working pressure exceeds 15 lbs. per sq. in. except when such boiler has two water glasses with independent connections to the boiler located on the same horizontal line and not less than 2 ft. apart.
47 No outlet connections, except for damper regulator, feedwater regulator, drains, or steam gauges, shall be placed on the pipes connecting a water column to a steam boiler. The water column shall be provided with a valve drain of at least 3/4 in. pipe size, the drain to be piped to a safe location.
48 Each steam boiler or pressure vessel shall have a steam gauge connected to the steam space or to the water column or to its steam connection. All gauges must be accurately and correctly graduated up to and including the last division of the scale. The total graduation of the scale must be at least one and a half times the working pressure allowed on the steam boiler or pressure vessel. The steam gauge shall be connected to a siphon or equivalent device of sufficient capacity to keep the gauge tube filled with water and so arranged that the gauge cannot be shut off from the steam boiler or pressure vessel except by a cock placed near the gauge and provided with a tee or lever handle arranged to be parallel to the pipe in which it is located when the cock is open. Connections to gauge shall be of brass copper, or bronze composition.
49 Each steam outlet from a steam boiler (except safety valve and superheater connections) shall be fitted with a stop valve located as close as practicable to the boiler.
50 When a stop valve is so located that water can accumulate, ample drains shall be provided.
51 Each steam boiler shall have a blow-off pipe fitted with valve and cock or two valves in direct connection with the lowest water space practicable. When cocks are used they shall have the plug held in place by a gland.
52 When the maximum allowable working pressure exceeds 125 lbs. per sq. in. the blow-off pipe shall be extra heavy from steam boiler to valve or valves, and shall run full size without reducers or bushings.
53 All fittings between the steam boiler and valve shall be steel or extra heavy fittings of bronze, brass, malleable iron, or cast iron. In case of replacement of pipe or fittings in the blow-off lines as specified in this paragraph, they shall be installed in accordance with the rules for A.S.M.E. Power Boilers.
54 When the maximum allowable working pressure exceeds 125 lbs. per sq. in. each bottom blow-off pipe shall be fitted with an extra heavy valve or cock. Preferably two valves, or a valve and a cock, should be used on each blow-off, in which case such valves, or valve and cock, shall be extra heavy.
55 A bottom blow-off pipe, when exposed to direct furnace heat, shall be protected by firebrick or other heat-resisting material so arranged that the pipe may be inspected.
56 An opening in the steam boiler setting for a blow-off pipe shall be arranged to provide for free expansion and contraction.
57 The feed pipe of a steam boiler shall be provided with a check valve near the steam boiler and a valve or cock between the check valve and the steam boiler, and when two or more steam boilers are fed from a common source there shall also be a globe valve on the branch to each steam boiler between the check valve and the source of supply. When a globe valve is used on a feed pipe, the inlet shall be under the disk of the valve.
58 Each steam boiler fitted with a water-jacketed boiler furnace mouth protector, or similar appliance, having valves on the pipes connecting them to the boiler, shall have these valves locked or sealed open. Such valves when used shall be of the straight-way type.
Inspector’s test gauge connection
59 A one-quarter inch pipe size connection must be provided on every steam boiler to permit an inspector’s gauge to be connected above the cock on siphon pipe for the purpose of testing in service the working steam gauge.
60 (a) When a hydrostatic test is applied, the required test pressure shall be 1 1/2 times the maximum working pressure. The pressure shall be under proper control so that in no case shall the required test pressure be exceeded by more than 2 percent.
(b) During a hydrostatic test of a steam boiler or pressure vessel, the safety valve or valves shall be removed or each valve disk shall be held to its seat by means of a testing clamp and not by screwing down the compression screw upon the spring.
(c) Every hydrostatic test shall be made only under the supervision of an inspector, or in the presence of some other person whose qualifications for this purpose are approved by the Chief Inspector.
61 A steam boiler having more than 500 sq. ft. of water heating surface shall have at least two means of feeding, one of which shall be a steam pump, inspirator, or injector. Where a source of feed is available at a sufficient pressure to feed the steam boiler against a pressure 6 percent higher than that at which the safety valve is set to blow, this may be considered one of the means. For steam boilers having a heating surface of not more than 100 sq. ft. the feed pipe shall be not less than 1/2 inch pipe size, and for steam boilers having more than 100 sq. ft. of heating surface, the feed pipe shall be not less than 3/4 inch pipe size. For steam boilers other than those fired with spreader type stokers or with gaseous, liquid or pulverized fuel, if pumps only are used one shall be steamdriven.
62 Every owner of a steam boiler, refrigeration plant or pressure vessel shall notify the Chief Inspector by mail, within thirty (30) days, of each purchase, sale or exchange made by him of a steam boiler, refrigeration plant or pressure vessel, giving the name of the person from whom it was purchased or to whom it was sold or exchanged and where it can be inspected.
Part VI - Inspection and Certificates
63 All steam boilers, refrigeration plants and pressure vessels may be inspected at any time, whether during construction or afterwards, or at such times as the Chief Inspector determines.
64 An inspector may, at any time he considers the same necessary for the proper inspection of any steam boilers, refrigeration plants or pressure vessels, require the application of a hydrostatic test.
65 Whenever an inspector requires the application of a hydrostatic test to any steam boiler, refrigeration plant or pressure vessel or directs an internal examination of any steam boiler, refrigeration plant or pressure vessel, the owner or operator shall immediately have such steam boiler, refrigeration plant or pressure vessel opened and all parts properly cleaned, the manhole and hand-hole covers removed and, in the case of internally fired steam boilers, the grates removed.
66 Whenever, in the opinion of an inspector, it is necessary to make an inspection of the exterior surface of a steam boiler, refrigeration plant or pressure vessel which is covered, jacketed, or lagged, the owner of such steam boiler, refrigeration plant or pressure vessel shall remove sufficient covering to permit an examination of the steam boiler, refrigeration plant or pressure vessel, shell and parts.
67 The owner or person in charge of any steam boiler, refrigeration plant or pressure vessel shall render any assistance required by an inspector in the course of making an inspection or applying a hydrostatic test, and, without limiting the generality of the foregoing shall, when required to do so, fill the steam boiler, refrigeration plant or pressure vessel or remove the jacket or covering from the steam boiler, refrigeration plant or pressure vessel, and shall point out to the inspector any defect which he knows or believes to exist in the steam boiler, refrigeration plant or pressure vessel or fittings connected therewith.
68 Before any work, repair or alteration is commenced on any steam boiler, refrigeration plant or pressure vessel, notice shall be sent to the Chief Inspector by the owner stating the nature and extent of the work to be done or repairs or alterations to be made. If the Chief Inspector notifies the owner of such steam boiler, refrigeration plant or pressure vessel that the same must be inspected, no such work, repair or alteration shall be proceeded with until permission in writing has been granted by the Chief Inspector. When an accident occurs which serves to render the steam boiler, refrigeration plant or pressure vessel inoperative, the owner or user shall immediately notify the Chief Inspector and submit a detailed report of the accident. In case of serious accident, such as explosion, the owner shall immediately send notice by telegraph, telephone or messenger and neither the steam boiler, refrigeration plant or pressure vessel nor any of the parts thereof shall be removed or disturbed before an inspection has been made by the Chief Inspector, an inspector, or other duly authorized person, unless for the purpose of saving human life.
69 An inspector may, for the purpose of determining the thickness of the plates or the internal condition of any steam boiler, refrigeration plant or pressure vessel, cut or drill holes in the same or remove the covering or require the owner to do so.
70 If at any time, in the opinion of an inspector, any steam boiler, refrigeration plant or pressure vessel or fittings are not in safe working condition, or any steam boiler, refrigeration plant or pressure vessel is not provided with the fittings necessary for safety or the fittings are not properly arranged, the inspector shall immediately notify in writing the owner or person in charge of such steam boiler, refrigeration plant or pressure vessel or fittings, and the inspector may withdraw or withhold the inspection certificate and shall report the same to the Chief Inspector and if such steam boiler, refrigeration plant or pressure vessel is under pressure, instruct the owner or other person in charge to relieve the pressure and the owner or other person in charge shall at once obey such instructions without reference to any other person.
71 The Chief Inspector may issue with respect to any steam boiler, refrigeration plant or pressure vessel constructed after the date on which these regulations come into force, a certificate of construction, substantially in the form of Certificate “A” in the appendix to these regulations.
72 No person shall use or operate or cause or permit to be used or operated, any steam boiler, refrigeration plant or pressure vessel constructed after the date on which these regulations come into force unless there has been issued with respect to such steam boiler, refrigeration plant or pressure vessel a certificate of construction as provided in the next preceding regulation.
73 An inspector may issue, with respect to any steam boiler, refrigeration plant or pressure vessel installed after the date on which these regulations come into force, a certificate of installation, substantially in the form of Certificate “B” in the appendix to these regulations.
74 No person shall use or operate or cause or permit to be used or operated any steam boiler, refrigeration plant or pressure vessel installed after the date on which these regulations come into force unless there has been issued with respect to such steam boiler, refrigeration plant or pressure vessel a certificate of installation as provided in the next preceding regulation.
75 An inspector may issue with respect to any steam boiler, refrigeration plant or pressure vessel, if he is satisfied that the same conforms with these regulations and that all fees payable under these regulations have been paid, a certificate of inspection substantially in the form of Certificate “C” in the appendix to these regulations. Such certificates shall remain in force and held valid until renewed, unless suspended or withdrawn.
76 No person shall use or operate, or cause or permit to be used or operated, any steam boiler, refrigeration plant or pressure vessel unless there is in effect with respect to such steam boiler, refrigeration plant or pressure vessel a certificate of inspection as provided in the next preceding regulation.
77 No owner or person in charge of any steam boiler, refrigeration plant or pressure vessel shall at any time allow the pressure to which the steam boiler, refrigeration plant or pressure vessel is subjected to, exceed the degrees allowed by the certificate in effect with respect to such steam boiler, refrigeration plant or pressure vessel except as provided in Regulation 40, or alter, or hide or dispose of the steam gauge, so as to prevent the real pressure from being seen and established.
78 No inspector shall issue a certificate if he is interested directly or indirectly in the manufacture, erection or sale of steam boiler[s], refrigeration plants or pressure vessels.
79 All certificates in effect with respect to any steam boilers, refrigeration plants or pressure vessels shall be suitably framed by the owner and shall be kept under glass in the machinery room.
80 The owner or person in charge of any steam boiler, refrigeration plant or pressure vessel shall, immediately on being requested to do so by an inspector, produce the certificate in effect with respect to such steam boiler, refrigeration plant or pressure vessel.
81 Every steam boiler, refrigeration plant or pressure vessel approved by an inspector shall for identification purposes be stamped by the inspector with a provincial number, the figures and letters of which shall be at least one-quarter inch high, and which shall be of such form and so placed as the Chief Inspector may determine.
82 Every steam boiler, refrigeration plant or pressure vessel which is deemed by an inspector to be unsafe shall be stamped by him with the letter[s] XX with an arrowhead on each side as shown by the following facsimile:
<------------ X X ------------>
and no person other than an inspector shall remove or deface such stamping.
83 An inspection made by a person employed regularly by an insurance company duly authorized and registered to do a boiler, and machinery insurance business in the Province of Nova Scotia may be accepted by the Chief Inspector as an inspection under these regulations, provided that such insurance company furnish the Chief Inspector with full data of all steam boilers, refrigeration plants and pressure vessels insured by it, and copies of all inspection reports, and promptly report all cancellations or suspensions of insurance with the reasons for the same, and provided further that the insurance inspectors must be qualified inspectors having a certificate issued by the Canadian Boiler Code Committee, or, until this Board functions, having some other certificate satisfactory to the Chief Inspector. Nothing in this regulation shall in any way limit the right of any inspector, employed to enforce these regulations, to inspect any steam boiler, refrigeration plant or pressure vessel.
Part VII - Fees in Respect of Construction
84 Every person who makes application to the Chief Inspector for registration of a boiler, pressure vessel, or related equipment shall pay the appropriate fee as follows:
(a) for steel boilers
(i) up to and including 2500 ft.2........................................................$104.32
(ii) over 2500 ft.2 to 5000 ft.2.............................................................$231.80
(iii) over 5000 ft.2 to 10 000 ft.2..........................................................$347.71
(iv) over 10 000 ft.2 to 25 000 ft.2.......................................................$579.52
(v) over 25 000 ft.2............................................................................$579.52
plus $3.48 per 50 ft.2 or part thereof in excess of 25 000 ft.2
(b) on registration of the design of a pressure vessel other than a heat exchanger, if the product of the diameter or the width of the pressure vessel multiplied by its length over the heads is
(i) not greater than 10 ft.2...................................................................$57.95
(ii) greater than 10 ft.2 but not greater than 30 ft.2................................$82.50
(iii) greater than 30 ft.2 but not greater than 60 ft.2..............................$123.75
(iv) greater than 60 ft.2 but not greater than 125 ft.2.............................$176.79
(v) greater than 125 ft.2 but not greater than 250 ft.2...........................$231.80
(vi) greater than 250 ft.2 but not greater than 500 ft.2...........................$347.71
(vii) greater than 500 ft.2......................................................................$579.52
(c) for heat exchangers
(i) up to and including 50 ft.2 heating surface......................................$94.29
(ii) over 50 ft.2 to 200 ft.2...................................................................$115.90
(iii) over 200 ft.2 to 300 ft.2.................................................................$176.79
(iv) over 300 ft.2 to 500 ft.2.................................................................$231.80
(v) over 500 ft.2 of heating surface.....................................................$294.64
(d) for power plant piping
(i) up to and including 500 HP.........................................................$115.90
(ii) over 500 HP to 1000 HP..............................................................$231.80
(iii) over 1000 HP..............................................................................$347.71
Refineries, petrochemical and other similar piping systems
85 On registration of the design of the layout of a pressure piping system used in a refinery, petrochemical or other similar installation, for each 500 ft. of piping or fraction thereof the fee is $57.95.
86 The fee for other pressure piping systems not detailed above shall be as prescribed in Section 84.
Additions to or alterations of a pressure piping system
87 The fee for survey for the purpose of registration of design drawings and specifications of additions to or alterations of a pressure piping system shall be as prescribed in Section 85.
88 The manufacturer shall pay the appropriate fee as prescribed below for the survey and registration of design drawings and Statutory Declaration Forms for fittings:
(a) single fitting...........................................................................................$34.77
(b) range of fittings in a single category......................................................$127.50
89 (1) A fee of $34.77 shall be paid for the registration of an amendment to any registered design, except that if calculations are involved the fee shall be $69.55.
(2) Design changes involving shell thickness, diameter, working pressure or tensile strength of material constitute a new design, and the appropriate fees for registration of new design as prescribed in Section 84 shall be paid.
90 Fees prescribed in Section 102 shall be payable for shop inspections of boilers, pressure vessels, heat-exchangers and digesters during their fabrication, alteration, repair or field assembly.
91 Fees prescribed in Section 102 shall be payable for the inspection of pressure plants, piping, fittings and valving in new installations under construction and alterations made to existing installations.
Additional fees for design survey
92 Additional fees payable for surveying designs for boilers, heat-exchangers and pressure vessels shall be
(a) for heat-exchangers and pressure vessels that have flanges requiring calculations in accordance with A.S.M.E. Code, increased by $69.55 for each such flange that requires separate calculations;
(b) for heat-exchangers or pressure vessels that have more than 5 openings that require calculation, increased by $34.77 for each such opening that requires separate calculation; and
(c) for stamping extra copies of design drawings..........................................$17.39
93 If a manufacturer makes a request to the Chief Inspector that a survey be expedited, the Chief Inspector may expedite such survey provided that the manufacturer shall, in addition to the fees prescribed for design registration, pay to the department a sum equal to the costs and expenses occasioned by such expedition.
94 A filing fee of $5.80 shall be payable for filing of an affidavit or data report.
Installation and periodic inspection fees
95 The following fees for installation and periodic inspections are due and payable on presentation of the department invoice:
(a) for power boilers
(i) up to and including 250 ft.2............................................................$46.36
(ii) over 250 ft.2 to 750 ft.2...................................................................$94.29
(iii) over 750 ft.2 to 2000 ft.2...............................................................$139.08
(iv) over 2000 ft.2 to 5000 ft.2.............................................................$202.83
(v) over 5000 ft.2 to 15 0000 ft.2........................................................$249.20
(vi) over 15 000 ft.2 to 30 000 ft.2.......................................................$312.93
(vii) over 30 000 ft.2............................................................................$312.93
plus $3.48 per 500 ft.2 or part thereof to
a maximum fee of.......................................................................$869.28
(b) for pressure vessels and heat-exchangers the following fees shall apply to the first 10 ft. of overall length, beyond which an additional fee of $23.18 for each 10 ft. or part thereof shall be applied:
(i) up to 24 in. diameter......................................................................$34.77
(ii) over 24 in. diameter to 30 in..........................................................$69.55
(iii) over 30 in. diameter to 50 in..........................................................$82.50
(iv) over 50 in. diameter to 70 in........................................................$104.32
(v) over 70 in. diameter to 100 in......................................................$139.08
(vi) over 100 in. diameter to 120 in....................................................$162.27
(vii) over 120 in. diameter...................................................................$185.45
96 For inspection of a digester the following fees are prescribed: