CSA B140.2.2-1971 - Pressure atomizing oil burner nozzles (reaffirmed 2015)

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B140.2.2-1971

(reaffirmed 2015)

Pressure atomizing oil burner nozzles

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CSA Standards Update Service B140.2.2-1971 February 1971 Title: Pressure atomizing oil burner nozzles Pagination: 10 pages To register for e-mail notification about any updates to this publication •

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CSA STANDARD B140.2.2-1971

PRESSURE ATOMIZING 011 BURNER NOZZLES

PUBUSHED, FEBRUARY, 1971 BY THE CANADIAN STANDARDS ASSOCIATION (INCORPORATED 1919) 178 REXDALE BOULEVARD, REXDAE 603, ONTARIO, CANADA

COPYRIGHT REGISTERED, CANAD4 1971

CSA CERTIFICATION The Canadian Standards Association provides certification services for manufacturers who, under licence from CSA, wish to use the appropriate registered CSA Marks on certain products of their manufacture to indicate conformity with a CSA Standard. CSA Certification for a number of products is provided on a voluntary basis in the interest of mainta-ining agreed-upon standards of quality, performance, interchangeability, or safety and, where appropriate, it forms the basis for acceptance by inspection authorities responsible for enforcement of regulations. Where feasible, programmes will be developed for additional products for which certification is desired by producers, consumers, or other interests.

A complimentary copy of the CSA Catalogue of Standards wilt be provided on request.

PRESSURE ATOMIZING OIL BURNER NOZZLES

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CONTENTS Page List of hLIembers of Committee on Oil Burning Appliance Standards 4 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Reference Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

STANDARD 2 . Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 7

3 . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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4. Construction Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 3 Filters or Strainers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 4 Rated Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 5 Spray Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . 6 Spray Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 8 8

8 8 8 8

5 . Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1. scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . 1 . 5 Reference Fuel Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Rated Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 9 9 10

6 . 3 Spray Angle and Spray Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

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CSA STANDARD B140.2.2

MEMBERS OF COMMITTEE ON OIL BURNING APPLIANCE STANDARDS G. C. STAPLETON (Chairman). . . . . . . . Honeywell Controls Limited, Scarborough A. G. REED(Vice-Chairman) . . . . . . . .Honeywell Controls Limited, Scarborough P. C. BODETT..................... .Duo-Therm Division of Motor Wheel Corporation, Indiana A. E. BRIDGES.. . . . . . . . . . . . . . . . . . . .Alberta Department of the Provincial Secretary, Edmonton (Representing CSA Council on Fire Safety) . . . . . . . . . . . . . . . . . . . .Saskatchewan Department of Labour, Regina W. J. CARSON. (Representing Association of Canadian Fire Marshals and Fire Commissioners) W. C. CARSS...................... Weil-McLain (Canada) Limited, BramaIea F. FEITH. ......................... Terry Industries, Pointe Claire . . . . . . . . . . . . . . . . . . . . .Ontario Hydro, Toronto G. E. FISHER. J. E. FORSYTH ..................... .The Canadian Coleman Company, Limited, Toronto J. W. INGRAM.. . . . . . . . . . . . . . . . . . . . .Shell Canada Limited, Don Mills (Representing CSA Committee on Installation Code for Oil Burning Equipment) A. D. KENT... . . . . . . . . . . . . . . . . . . . .National Research Council of Canada, Ottawa S. S . MAJURY.. . . . . . . . . . . . . . . . . . . . .Factory Mutual Engineering Association, Toronto W. F. MALSBARY . . . . . . . . . . . . . . . . . . Malsbary Manufacturing Company, Oakland J. F. MITCHELL.. . . . . . . . . . . . . . . . . . . McArthur-Mackinnon Limited, Rexdale (Representing Heating, Refrigerating and Air Conditioning Institute of Canada) E. A. MUELLER.. . . . . . . . . . . . . . . . . . .Aero Tool Works, Toronto (Representing Oil Heating Association of Canada) R. H. REEVE...................... Hallmac Limited, Hespeler . . . . . . . . . . . . . . . . . . . . . The Canadian Coleman Company Limited, Toronto E. SCHOLLEN. T. TYNE . . . . . . . . . . . . . . . . . . . . . . . . . . Canadian Standards Association, Rexdale L. C. WEST... . . . . . . . . . . . . . . . . . . . . .Department of Labour, Toronto

In addition to members of the Committee, the following made valuable contribution to the development of this Standard in their capacities as noted:

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R. A. BEALS(Associate). . . . . . . . . . . . .National Oil Fuel Institute Incorporated, New York H. GOLD... . . . . . . . . . . . . . . . . . . . . . . .Corporation of The City of Toronto, Toronto C. JOHNSTON. ..................... Canadian Standards Association, Rexdale E. KULMAR ........................ Canadian Standards Association, Montreal E. LEDWINKA ....................... Anthes Eastern Limited, Toronto T. MCMANUS. ..................... Gulf Oil Canada Limited, Toronto R. PARKER. . . . . . . . . . . . . . . . . . . . . . . . Lennox Industries Limited, Toronto M. POLANSKY (Associate) . . . . . . . . . . . . Canadian Standards Association, Rexdale N. SCHJERNING. . . . . . . . . . . . . . . . . . . . Gilbarco Canada Limited, Brockville J. G. TAKATA.. . . . . . . . . . . . . . . . . . . . . Niagara College of Applied Science & Technology,

Welland A. E. WOOD.. . . . . . . . . . . . . . . . . . . . . .Department of Labour, Toronto R. J. WRIGHT.. . . . . . . . . . . . . . . . . . . . . Underwriters’ Laboratories of Canada, Scarborough W. YOUNG.. . . . . . . . . . . . . . . . . . . . . . . Pendell Boilers Limited, Toronto R. C. WHYTE(Secretary) . . . . . . . . . . . .Canadian Standards Association, Rexdale

PRESSURE ATOMIZING OIL BURNER NOZZLES

PREFACE This is the first CSX Standard covering minimum requirements for safe operation, acceptable performance, construction, marking and testing of pressure atomizing oil burner nozzles. Since it is the intent t o determine consistency of similarly identified nozzles from one production lot t o the next rather than compliance with absolute values, such compliance is determined by comparison of results of the tests to an originally established datum. For example, it is significant that the spray angle, as determined by these tests, be within acceptable limits of the angle of an original nozzle rather than that a nozzle marked “60 degrees spray” actually spray at 60 degrees. This Standard was prepared by the Committee on Oil Burning Appliance Standards, under the jurisdiction of the Sectional Committee on Oil Burning Equipment, and was formally approved by these Committees. REXDALE, FEBRUARY, 1971

XOTE:In order to keep abreast of progress in the induslry concerned, CSA

Publications are subject to periodic review. Suggestions f o r improvement will he welcomed at all times. They will be recorded and in due course brought to the attention of the afipropriate committee for consideration. Also, requests for interpretation will be accepted by the Committee. They should be worded in such a manner as to permil a simple “yes” or “no” answer based on the literal text of the requirement concerned. A l l enquiries regarding this Standard should be addressed to Canadian Standards Association, 178 Rexdale Boulevard, Rexdale 603, Ontario.

R E F E R E N C E PUBLICATIONS This Publication makes reference to the following and the year dates shown indicate the latest issue available a t the time of printing: CSA Standard B139-1971, Installation Code for Oil Burning Equipment. ASTM * Standard D396-67, Specifications for Fuel Oils. *American Society for Testing and Materials.

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B 140.2.2-1971 PRESSURE ATOMIZING OIL BURNER NOZZLES 1. SCOPE 1.1 This Standard states the minimum requirements for nozzles which are designed for installation in oil burners of the pressure atomizing type.

1.2 This Standard includes requirements for construction, marking, and performance to ensure consistent operation of nozzles. 1.3 The intent of these requirements is to determine the consistency of flow rate, nominal spray angle, and nominal spray pattern, of any subsequent production lot of similarly identified nozzles to an original lot, rather than to compare these characteristics to any absolute or specified value. 1.4 These requirements apply t o nozzles which are: (a) Of the capacity range up to and including 2.00 gallons (U.S.) per hour; and (b) Primarily intended for use with oil not heavier than grade No. 2.

1.5 Nozzles designed for use in a specific burner may be evaluated to the intent of these requirements.

2. DEFINITIONS 2.1 For the purpose of this Standard the definitions contained in the latest issue of CSA Standard B139, Installation Code for Oil Burning Equipment, shall apply.

3. GENERAL REQUIREMENTS 3.1 A nozzle shall be assembled as a unit and shall include all the components necessary for its normal function when used as intended. 3.2 The construction of a nozzle shall be such that parts can be readily reassembled in a proper manner after being dismantled to the extent needed for normal servicing. 3.3 The design shall be such as to prevent the entrapment of air pockets. 3.4 An integral filter or strainer shall be provided. 3.5 The nozzle shall be designed so that, when the integral filter or strainer is removed for cleaning, all foreign matter (sediment or dirt) can be removed readily without the probability of being deposited in the nozzle.

3.6 A nozzle shall be designed to withstand, without rupture or permanent deformation, a n impressed flow pressure equivalent to two times the rated pressure but not less than 500 psig.

3.7 The flow and spray rating marked on the nozzle shall be the rating at 100 psig unless another pressure rating is indicated on the nozzle. NOTES:1. Standard flow rates in gallons (US.)per hour, of nozzles are deemed to be: 0.40, 0.50,0.60,0.65, 0.75,0.85,0.90,1.00,1.10,1.20,1.35,1.50, 1.65, 1.75 and 2.00. 2. Standard nominal spray angles of nozzles are deemed to be of the following: 30,45, 60,70,80,and 90 degrees.

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CSA STANDARD B140.2.2

3.8 Orifices and passages shall be accessible for cleaning. 3.9 Oil passages shall be free from machine cuttings, burrs, or foreign matter including gum formations. 3.10 Nozzles shall be of good workmanship, specifically: (a) Mating parts shall fit properly; and (b) Parts shall be properly aligned. 4. CONSTRUCTION REQUIREMENTS

4.1 General 4.1.1 Nozzles, unless designed for a specific use, shall be mechanically interchangeable with other standard makes of nozzles. 4.1.2 Nozzles, when designed for mechanical interchangeability, shall be % inch plus or minus K G inch in length, as measured from the orifice tip to the shoulder. 4.1.3 The shoulders of nozzles shall be machined to assure a positive seal with the nozzle adapter. 4.2 Materials 4.2.1 The materials used for nozzles shall be capable of withstanding the radiant heat of flame without excessive oxidation or corrosion. 4.2.2 The orifice body shall be of a suitable grade of stainless steel or of a material having an equivalent resistance to normal wear and accidental damage. 4.2.3 All parts of a nozzle shall be made of material having a melting point of not less than 1,000 F. 4.3 Filters or Strainers 4.3.1 The filter mesh size shall be at least 150 mesh for nozzles less than 1 gallon (US.) per hour, and at least 100 mesh for nozzles from 1 gallon (U.S.) per hour up to 2 gallons (U.S.) per hour. 4.3.2 Nozzle filters fabricated from porous bronze, pressed steel, or other materials, shall provide protection for the nozzle orifice equivalent to the protection required in Clause 4.3.1. 4.4 Rated Capacity. The rated capacity tolerance range shall not be more than 10 per cent from the marked rating when tested in accordance with Clause 6. NOTE:For example, the tolerance m a y be minus zero per cent and plus 10 per cent, or minus 2 per cent and plus 8 per cent.

4.5 Spray Angle. Nozzles of the same make, type and rating shall exhibit the following characteristics when tested in accordance with Clause 6: (a) Consistency of spray angle about the axis of the nozzle within plus or minus 5 degrees; and (b) Concentricity of spray angle about the axis of the nozzle within plus or minus 5 degrees. 4.6 Spray Pattern. Nozzles of the same make, type, and rating shall exhibit the following characteristics when tested in accordance with Clause 6 :

PRESSURE ATOMIZING OIL BURNER NOZULES

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(a) Consistency of spray pattern; and (b) Uniform oil distribution.

5. MARKING 5.1 Nozzles shall be plainly marked in a permanent manner with the following : (a) The manufacturer’s name, trade name, or other recognized symbol of identification ; (b) The rated capacity in U.S. gallons per hour; (c) The nominal spray angle in degrees; (d) The nominal spray type or pattern; (e) The pump pressure if the nozzle is rated a t other than 100 psig.

6. TESTS 6.1 General 6.1.1 For the purpose of these tests, the nozzle shall be as normally supplied by the nozzle manufacturer.

6.1.2 A t least three nozzles of each type and rating shall be tested; all shall comply. 6.1.3 The angle of nozzle spray for the purposes of these tests shall be determined a t the distances indicated in Table 1:

TABLE 1 MEASUREMENT OF SPRAY ANGLE 1

-

Rated Marked Capacity gph U.S.

Distance from Face of Nozzle Inches

0 . 5 to 0.85 1.00 to 2.00

0.5 t o 2.00 0 . 5 to 3.00

6.1.4 Tests shall be conducted a t the oil flow rate marked on the nozzle at 100 psig or a t the rated oil pressure, and the test oil a t a temperature of

70 to 80F at the nozzle except that subsequent retests shall be conducted a t the original qualification temperature, plus or minus 1F.

6.1.5 Reference Fuel Oil. The test oil shall conform to grade No. 2 (ASTM Standard D396-67, Specifications for Fuel Oils) having these characteristics : (a) Viscosity - 35 k 1 SSU a t 100 F; (b) Gravity - 32 to 38 API a t 60 F.

6.1.6 For the purpose of these tests, the spray pattern of a nozzle shall be considered acceptable if the spray patterns obtained from three similarly identified nozzles meet the requirements contained herein when tested in accordance with Clause 6.

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CSA STANDARD B140.2.2

6.2 Rated Capacity. Each nozzle shall be subjected to a flow test and the rate of discharge shall be within the limits specified in Clause 4.4.

6.3 Spray Angle and Spray Pattern 6.3.1 The spray angle and spray pattern shall be determined for each nozzle under flow conditions. NOTE: Since it is the intent to determine consistency of similurly-identi,fied nozzles f r o m one production lot to the next, rather than compliance with absolute values, such compliance i s determined by comparison of results of the tests in Clause 6.3.1 to a n miginallyestablished datum. For example, it is significant that the spray angle, as determined by these tests, be within acceptable limits of the angle of a n original nozzle rather than that a nozzle marked “60 degrees spray” actually spray at 60 degrees.

4.3.2 Each nozzle shall be mounted by its normal means of attachment with its axis vertical, spraying upward in a draft-free area.

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