SANS 1209-2008 Pipe holderbats《管箍》.pdf

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1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21882-9 SANS 1209:2008Edition 1.1Any reference to SABS 1209 is deemedto be a reference to this standard(Government Notice No. 1373 of 8 No

4、vember 2002)SOUTH AFRICAN NATIONAL STANDARD Pipe holderbats Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 1209:2008 Edition 1.1 Table of changes Change No. Date Scope Amdt 1 2008 Amen

5、ded to change the designation of SABS standards to SANS standards, to delete reference to the standardization mark, and to update referenced standards. Foreword This South African standard was approved by National Committee SABS TC 1080, Handheld non-electrical tools for general purpose use, in acco

6、rdance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in November 2008. This document supersedes SABS 1209:1984 (first edition). A vertical line in the margin shows where the text has been technically modified by amend

7、ment No. 1. SANS 1209:2008 Edition 1.1 1 Contents Page Foreword 1 Scope 3 2 Definitions . 3 3 General and constructional requirements 4 4 Packing and marking . 5 5 Inspection and methods of test 5 5.1 Inspection . 5 5.2 Breaking strength test . 5 Figures 1-3 7-9 Appendix A Applicable standards . 10

8、Appendix B Notes to purchasers . 11 Appendix C Quality evaluation of pipe holderbats produced to the requirements laid down in the specification . 11 SANS 1209:2008 Edition 1.1 2 This page is intentionally left blank SANS 1209:2008 Edition 1.1 3 Pipe holderbats 1 Scope 1.1 This specification covers

9、three types of two-piece (saddle and clamp) holderbats, for use in the installation of a) in the case of two types (type A and type B), steel or cast-iron pipes of nominal bore 6-150 mm and complying with the relevant requirements of SANS 62-1 and SANS 746 respectively; and Amdt 1 b) in the case of

10、one type (type C), copper pipes of nominal outside diameter 12-108 mm and complying with the relevant requirements of SANS 460. NOTE 1) The standards referred to in the specification are listed in appendix A. 2) Requirements that must be specified by the purchaser are listed in appendix B. 3) Inform

11、ation regarding the verification of the quality of pipe holderbats produced to this specification and a sampling plan that could be used to assess compliance with the specification of a lot of pipe holderbats, are given in appendix C. 2 Definitions 2.1 For the purposes of this specification the foll

12、owing definitions shall apply: holderbat a split ring, secured by screws or by other means adequate for the purpose, having a spike attached radially to the periphery of the ring (see figure 1 and figure 2) for fastening the ring to a surface for the purpose of supporting a pipe Size (of a holderbat

13、) Type A and type B (see figure 1). The nominal bore of the corresponding steel or cast-iron pipe. Type C (see figure 2). The nominal outside diameter of the corresponding copper pipe. SANS 1209:2008 Edition 1.1 4 3 General and constructional requirements 3.1 Type 3.1.1 Holderbats shall be of one of

14、 the following types: a) Type A. A holderbat of which the clamp is of a mild steel and the saddle of a cast iron. b) Type B. A holderbat of which the clamp and saddle are of a cast iron. c) Type C. A holderbat of a zinc alloy (diecast). 3.2 Materials 3.2.1 Cast iron Cast iron shall be a grey cast ir

15、on complying with the requirements of SANS 1034 for at least grade 150. 3.2.2 Mild steel Mild steel shall be a commercial quality mild steel. 3.2.3 Zinc alloy Zinc alloy shall comply with the requirements of SANS 26 for grade ZBD1. 3.3 Construction 3.3.1 Design and dimensions A holderbat shall consi

16、st of a saddle and a clamp that are similar in design to those shown in figure 1 or figure 2, as relevant. The saddle and clamp shall be secured together by means of screws or other fastening devices adequate for this purpose. The dimensions of a holderbat shall conform to the values given in figure

17、 1 or figure 2, as relevant, appropriate to the size of the holderbat. 3.3.2 Spike The spike of a holderbat shall be so designed as to resist the tendency of the holderbat, when under load, to pull the spike out of the surface into which it is fastened. 3.3.3 Screws Screws for holderbats shall be of

18、 the size, pitch, and class of fit given in columns 5, 6, and 7 respectively of figure 1 or figure 2, as relevant, and shall comply with the relevant requirements of SANS 1700-9-2. Amdt 1 3.3.4 Breaking strength When tested in accordance with 5.2, a holderbat shall withstand without breaking, the ap

19、propriate minimum test force given in column 8 of figure 1 or figure 2, as relevant. SANS 1209:2008 Edition 1.1 5 3.4 Finish Type A and type B holderbats shall be protected by a zinc coating that complies with the relevant requirements of SANS 121 or SANS 32 for type D11)articles (general or heavy d

20、uty applications). Type C holderbats shall be brass plated. Amdt 1 3.5 Freedom from defects Holderbats shall be free from blowholes and other defects that may affect their serviceability. 4 Packing and marking 4.1 Packing Holderbats shall preferably be packed in bundles or in suitable containers. On

21、ly holderbats of the same type, size, and design shall be packed together in a bundle or container. 4.2 Marking 4.2.1 Holderbats Each holderbat shall be legibly and indelibly marked with the following information: a) the manufacturers name or trade name or trade mark; b) the size of the holderbat. 4

22、.2.2 Containers Each container shall bear the following information, legibly and indelibly marked on the outside of the container, or on a label securely attached to the container: a) the manufacturers name or trade name or trade mark; b) the size of the holderbats; c) the type and the material of m

23、anufacture; d) the quantity in the container. 5 Inspection and methods of test 5.1 Inspection Visually examine and measure each holderbat in the sample for compliance with all the relevant requirements of sections 3 and 4, compliance with which is not assessed by testing. 5.2 Breaking strength test

24、5.2.1 Apparatus A test rig of the type illustrated in figure 3. 1) It is recommended that type A and type B holderbats for use in corrosive and coastal environments be protected by a zinc coating of type D1 (heavy duty). SANS 1209:2008 Edition 1.1 6 5.2.2 Procedure a) Test half the holderbats in the

25、 sample as follows: Clamp the holderbat under test in the test rig as shown in figure 3. Apply the appropriate test force given in column 8 of figure 1 or figure 2, as relevant, and check for compliance with the requirements of 3.3.4. b) Test the remaining holderbats in the sample as in (a) above, b

26、ut with the ring of the holderbats turned through 90, i.e. with the plane of the ring vertical. SANS 1209:2008 Edition 1.1 7 1 2 3 4 5 6 7 8 Holderbats Screws Dimensions mm D Pitch Test force Size Max. Min. L 5 Size mm Class of fitN, min. 6 8 10 13 17 20 11 15 18 40 50 70 825 850 875 15 20 25 24 30

27、37 22 28 35 70 80 85 M5 0,8 6 g (medium fit)930 1 000 1 070 32 40 50 47 52 64 44 49 61 85 85 95 M5 0,8 1 150 1 250 1 375 65 80 100 80 102 119 77 99 115 135 150 180 M6 1,0 6 g (medium fit) 1 560 1 750 2 000 125 150 146 171 142 167 210 250 2 300 2 450 Figure 1 Typical type A or type B (cast-iron) hold

28、erbat SANS 1209:2008 Edition 1.1 8 1 2 3 4 5 6 7 8 Holderbats Screws Dimensions mm D Pitch Test force Size Max. Min. L 5 Size mm Class of fitN, min. 12 15 18 15 18 21 13 16 19 55 60 65 M4 M4 M4 0,7 265 280 295 22 28 35 25 31 39 23 29 36 70 70 75 M4 M4 M5 6 g (medium fit) 345 42 54 76 108 46 58 82 11

29、4 43 55 77 109 75 80 80 90 M5 M5 M5 M5 0,8 410 470 580 740 Figure 2 Typical type C (diecast) holderbat SANS 1209:2008 Edition 1.1 9 NOTE Owing to the tapering of the spike it is essential to ensure that the holderbat is properly held by the clamp in the significant clamping area. Figure 3 Typical te

30、st rig for the breaking strength test SANS 1209:2008 Edition 1.1 10 Appendix A2)Applicable standards Reference is made to the latest issues of the following standards: BS 6001, Sampling procedures for inspection by attributes. Specification for sampling plans indexed by acceptable quality level (AQL

31、) for lot-by-lot inspection. Amdt 1 SABS 62, Steel pipes and pipe fittings up to 150 mm nominal bore suitable for screwing to ISO 7/1 pipe threads. Amdt 1 SABS 763, Hot-dip (galvanized) zinc coatings (other than on continuously zinc-coated sheet and wire). Amdt 1 SABS 0157, Quality management system

32、s. Amdt 1 SABS 1355, ISO metric machine screws and nuts, hexagon socket screws, and set screws (coarse thread series) Part 1: Machine screws and nuts. Amdt 1 SANS 26, Zinc alloy die-castings. SANS 32/EN 10240, Internal and/or external protective coatings for steel tubes Specification for hot dip gal

33、vanized coatings applied in automatic plants. Amdt 1 SANS 62-1, Steel pipes Part 1: Pipes suitable for threading and of nominal size not exceeding 150 mm. Amdt 1 SANS 121/ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods. Amdt 1 SANS 460, Pla

34、in-ended solid drawn copper tubes for potable water. SANS 746 (SABS 746), Cast-iron pipes and pipe fittings for use above ground in drainage installations. SANS 1034, Grey iron castings. SANS 1700-9-2/ ISO 7379, Fasteners Part 9: Hexagon socket head screws Section 2: Hexagon socket head shoulder scr

35、ews. Amdt 1 SANS 2859-1/ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. Amdt 1 SANS 9001/ISO 9001, Quality management systems Requirements. Amdt 1 2) The information in the appendices is additi

36、onal to that in the specification and has been included purely for amplification and guidance. SANS 1209:2008 Edition 1.1 11 Appendix B Notes to purchasers The following requirements must be specified in tender invitations and in each order or contract: a) The type (see 3.1) b) The size(s) of the ho

37、lderbats (see 3.3.1) c) Whether the zinc-coating on type A and type B holderbats is to be for general or heavy duty applications (see 3.4) Appendix C Quality evaluation of pipe holderbats produced to the requirements laid down in the specification C.1 Quality verification C.1.1 When a purchaser requ

38、ires quality verification on an ongoing basis of pipe holderbats produced to this specification, it is suggested that, rather than to evaluation of the final product only, he also directs his attention to the quality management system applied by the manufacturer. In this connection it should be note

39、d that SANS 9001 covers the provision of an integrated quality management system. Amdt 1 C.1.2 If no information about the implementation of quality control or testing during manufacture is available to help in assessing the quality of a lot, and a purchaser wishes to establish by inspection and tes

40、ting of samples of the final product whether a lot (as defined in C.2.1) of the holderbats produced to this specification complies with its requirements, the sampling plan given in C.2 and based on the stated AQLs can be applied. (If a different AQL is required, reference should be made to applicabl

41、e statistical sampling tables.) Amdt 1 It must be noted that a) such a sampling plan applies to fully manufactured products only; and b) a lot that in terms of the plan is deemed to comply with the specification, could contain defective holderbats to an extent proportional to that permitted by the r

42、elevant acceptance numbers given in the sampling table. C.2 Assessment of compliance with the specification C.2.1 Definitions acceptable quality level AQL the maximum percentage defective that for the purpose of sampling inspection can be considered satisfactory as a process average SANS 1209:2008 E

43、dition 1.1 12 defective a pipe holderbat that fails in one or more respects to comply with the relevant requirements of the specification lot not less than 50 and not more than 10 000 pipe holderbats of the same type and size, from one manufacturer, submitted at any one time for inspection and testi

44、ng C.2.2 Sampling Use the following sampling procedure to determine whether a lot complies with the specification, and deem the samples so taken to represent the lot: a) Sample for inspection. From the lot take at random the number of holderbats given in column 2 of table C.1 relative to the appropr

45、iate lot size given in column 1. b) Sample for testing. After inspection of the sample taken in accordance with (a) above, take from it at random the number of pipe holderbats given in column 4 of table C.1. Table C.1 Sample sizes 1 2 3 4 5 Sample for inspection* Sample for testing+Lot size (AQL = 1

46、,5) (AQL = 1,5) Holderbats Sample size Acceptance No. Sample size Acceptance No. 50 91 281 90 280 500 8 32 50 0 1 2 8 8 8 0 0 0 501 1 201 3 201 1 200 3 200 10 000 80 125 200 3 5 7 32 32 32 1 1 1 * Based on table 2-A of SANS 2859-1. + Based on table 2-A of SANS 2859-1. Amdt 1 C.2.3 Criteria of compli

47、ance Deem the lot to comply with the relevant requirements of the specification if a) on inspection of the sample taken in accordance with C.2.2(a), the number of defectives found does not exceed the relevant acceptance number given in column 3 of table C.1; and b) on testing of the sample taken in accordance with C.2.2(b), the number of defectives found does not exceed the relevant acceptance number given in column 5 of table C.1. SABS