1、BRITISH STANDARD BS 8010-2.5: 1989 Code of practice for Pipelines Part 2: Pipelines on land: design, construction and installation Section 2.5 Glass reinforced thermosetting plastics UDC 656.56:621.644(21):621.643.2:678.072.067.5-462BS8010-2.5:1989 This British Standard, having been prepared under t
2、he direction of the Plastics Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31August 1989 BSI 04-1999 The following BSI references relate to the work on this standard: Committee reference PLM/9 Draft for comment 86/44565 DC ISBN 0 580 17395
3、 X Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Plastics Standards Policy Committee (PLM/-) to Technical Committee PLM/9, upon which the following bodies were represented: British Gas plc British Plastics Federation British Plumbing F
4、ittings Manufacturers Association British Valve and Actuator Manufacturers Association Department of the Environment (Construction Industries Directorate) Department of the Environment (Property Services Agency) Department of Transport Electricity Supply Industry in England and Wales Engineering Equ
5、ipment and Materials Users Association Health and Safety Executive Institution of Civil Engineers Institution of Gas Engineers Institution of Production Engineers Institution of Water and Environmental Management (IWEM) National Association of Plumbing, Heating and Mechanical Services Contractors Pl
6、astics and Rubber Institute Plastics Land Drainage Manufacturers Association Royal Institute of Public Health and Hygiene Water Authorities Association Water Companies Association Water Research Centre The following bodies were also represented in the drafting of the standard, through subcommittees
7、and panels: Association of Consulting Engineers British Board of Agrment Federation of Civil Engineering Contractors Institution of Mechanical Engineers Pipeline Industries Guild Amendments issued since publication Amd. No. Date of issue CommentsBS8010-2.5:1989 BSI 04-1999 i Contents Page Committees
8、 responsible Inside front cover Foreword ii Subsection 1. General 1 Scope 1 2 Definitions 1 3 Applications 1 4 Safety 2 5 Inspection 2 Subsection 2. Materials 6 General 3 7 Pipes 3 8 Fittings 3 9 Valves 3 10 Flanges 3 11 Bolts, nuts and washers 3 12 Gaskets 4 Subsection 3. Design 13 Pipeline design
9、5 14 Pipe design 5 15 Service and environmental considerations 5 16 Pipes on supports 6 17 Access to pipeline 6 18 Protective devices 6 19 Joints 7 20 External and internal corrosion resistance 7 Subsection 4. Construction 21 Transport, handling and storage 8 22 Trenching 8 23 Pipe inspection, repai
10、r and cutting 9 24 Laying, jointing and anchoring 9 25 Backfilling 11 Subsection 5. Cleaning, testing and commissioning 26 Cleaning 13 27 Testing 13 28 Commissioning 14 Subsection 6. Abandonment 29 Disused pipelines 16 Appendix A Types of joint 17 Appendix B Effect of non-metallic materials on water
11、 quality 21 Appendix C Bibliography of further reading 21 Appendix D Typical summary of pipeline records and of any special arrangements for its maintenance 22BS8010-2.5:1989 ii BSI 04-1999 Page Figure 1 Trench terminology 10 Figure 2 Typical integral socket and spigot joint 18 Figure 3 Typical loos
12、e collar joint 18 Figure 4 Typical slip-on coupling 18 Figure 5 Typical band coupling 19 Figure 6 Typical flange adapter 19 Figure 7 Typical examples of various flanges 20 Publications referred to Inside back coverBS8010-2.5:1989 BSI 04-1999 iii Foreword This Section of BS8010 has been prepared unde
13、r the direction of the Plastics Standards Policy Committee in support of publication under the direction of the Civil Engineering and Building Structures Standards Policy Committee of BS8010 in four Parts to form a complete revision of all five Parts of CP2010 as follows: Part 1: Pipelines on land:
14、general; Part 2: Pipelines on land: design, construction and installation; Part 3: Pipelines subsea: design, construction and installation; Part 4: Pipelines on land and subsea: operation and maintenance. Part 1 (which supersedes CP2010-1:1966) contains general information which is relevant to a var
15、iety of pipelines and a variety of transported materials. It deals with those aspects of pipeline development that affect the owner and occupier of land through which the pipeline passes. Part 2 is to be divided into several Sections which are to be published as separate documents as follows: Sectio
16、n 2.1: Ductile iron 1) ; Section 2.2: Steel (for water and associated products); Section 2.3: Asbestos cement 1) ; Section 2.4: Prestressed concrete pressure pipelines 1) ; Section 2.5: Glass reinforced thermosetting plastics; Section 2.6: Thermoplastics; Section 2.7: Precast concrete 1) ; Section 2
17、.8: Steel (for oil, gas and associated products). Each Section will contain information relevant to the design, construction and installation of a pipeline in the particular material. These Sections will supersede Parts2,3,4 and5 of CP2010. Part 3 will include information relevant to the design, ins
18、tallation and commissioning of subsea pipelines in steel and other materials. Part 4 will contain advice on the operation and maintenance of pipelines, with Sections related to the conveyed material. This Section 2.5 does not supersede any part of CP2010. It deals with pressure and non-pressure pipe
19、lines constructed using glass reinforced thermosetting plastics and in particular is based on pipes and fittings that comply with BS5480-1 and BS5480-2, as applicable. For supporting information not incorporated in published standards, reference is made to a bibliography provided asAppendix C. It ha
20、s been assumed in the drafting of this British Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. 1) Published.BS8010-2.5:1989 iv BSI 04-1999 Attention is drawn to the principal Acts of Parliament enabling pipelines to be constructed and reg
21、ulating procedures, given inAppendix A of BS8010-1. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal ob
22、ligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, pages1to22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the
23、 inside front cover.BS8010-2.5:1989 BSI 04-1999 1 Subsection 1. General 1 Scope This Section of BS8010 gives design considerations and recommendations for construction and installation of pressure or non-pressure pipelines incorporating glass reinforced thermosetting plastics pipes and fittings comp
24、lying with BS5480-1 and BS5480-2 as applicable. It should be read in conjunction with BS8010-1. This British Standard code of practice is not intended to replace or duplicate hydraulic, mechanical or structural design manuals. Descriptions of types of joints are given in Appendix A and general requi
25、rements for non-metallic materials likely to come into contact with potable water are given inAppendix B. NOTE 1A list of documents recommended for further reading for additional information and guidance is given inAppendix C. NOTE 2A format for a typical summary for pipeline records and maintenance
26、 arrangements is given inAppendix D. NOTE 3The titles of the publications referred to in this Section are listed on the inside back cover. 2 Definitions NOTEThe meanings of terms associated with trenching are illustrated inFigure 1. For the purposes of this Section of BS8010, the following definitio
27、ns apply. 2.1 glass reinforced thermosetting plastics (GRP) pipe a pipe conforming to BS5480 and produced from thermosetting resins reinforced with glass fibres and possibly containing inert filler and aggregate 2.2 pipeline a line of pipes, of any length, without frequent branches. It does not incl
28、ude piping systems such as process plant piping within refineries, factories or treatment plant 2.3 flexible joint a connection that is designed to permit angular deflections or axial movement, or a combination of both, in service, without impairing the efficiency of the joint NOTESeeAppendix A. 2.4
29、 rigid joint a connection that is designed not to permit angular deflection or axial movement in service NOTESeeAppendix A. 2.5 self-anchoring joint a connection that is designed to prevent separation under the axial thrust induced by internal pressure, temperature fluctuations or ground movement wh
30、ilst still permitting angular deflection and/or axial movement without impairing the efficiency of the joint NOTESeeAppendix A. 2.6 site test procedure the pressure to be applied to the pipeline, or sections thereof, after laying, to test its strength and watertightness 2.7 stringing the placing of
31、pipes in line on the ground ready for laying 2.8 surge pressure the maximum and minimum pressure produced by a change in velocity of a moving stream of liquid. It is at its maximum when there is a sudden stoppage such as would be caused by suddenly closing a valve or stopping a pump 2.9 working pres
32、sure the maximum sustained internal pressure excluding surge to which each portion of the pipeline may be subjected when installed 2.10 works hydrostatic test pressure the internal hydrostatic pressure applied to pipes at the manufacturers works 3 Applications The pipelines covered by this Section o
33、f BS8010 are generally suitable for conveying water, sewage, trade waste, slurries, sludges, brine and some chemicals. When used for the conveyance of sewage, reference should be made to BS8005-0, BS8005-1, BS8005-2 and BS8005-4. GRP pipes and fittings are particularly suitable for pipelines in loca
34、tions where corrosive environments exist either internally or externally.BS8010-2.5:1989 2 BSI 04-1999 4 Safety 4.1 The recommendations of this Section of BS8010 are considered to be adequate for public safety under conditions usually encountered in GRP pipelines, including pipelines within towns, c
35、ities, water catchments and industrial areas. Particular attention is called to the need to prevent damage or leakage arising from one or more of the following factors: a) corrosive soil condition; b) internal corrosion/erosion; c) mechanical equipment used during construction or on other works; d)
36、ground settlement, movement or erosion; e) any abnormal circumstances, e.g. adjacent trenching. 4.2 Measures to prevent damage may include one or more of the following: a) use of a particular resin type and/or an external barrier layer if necessary; b) use of a particular resin type and/or an intern
37、al liner, if necessary, and limitation of flow velocity to reduce erosion; c) providing increased cover or a concrete cover as a protection against external mechanical damage or erosion; d) for subsidence, additional flexible joints, anchored joints, rafts or piling; e) indicating the presence of th
38、e pipeline with additional markers, particularly in congested areas or areas where future development is known to be planned, and adequate marking at river and water course crossings; f) providing protection from frost for pipelines above ground or in ducts. 5 Inspection The integrity of a properly
39、designed pipeline depends more on the standards and quality of inspection applied at all stages than on any other single feature. Particular emphasis is laid on the inspection for possible damage to pipes, fittings and joints before installation and for the correct bedding of the pipeline, jointing,
40、 anchoring and testing. Any sub-standard materials or workmanship should be rectified or, where necessary, rejected.BS8010-2.5:1989 BSI 04-1999 3 Subsection 2. Materials 6 General A variety of resin systems and reinforcement structures may be used to make GRP pipes and fittings that comply with the
41、requirements of BS5480-1 and/or BS5480-2. Different combinations will have differing properties which may make them particularly suitable for specific fields of usage referred to in clause3 (e.g. because they are capable of deflecting to a greater extent before their long term performance is signifi
42、cantly impaired, or because of better resistance to cyclic stress or aggressive environments), and may be preferred accordingly. 7 Pipes GRP pipes should comply with BS5480-1 and BS5480-2 as applicable. NOTEThese standards specify diameters, lengths, classification, tolerances and basic performance
43、requirements. 8 Fittings GRP fittings and relevant aspects of fittings made from other materials should comply with BS5480-1 and BS5480-2 as applicable. 9 Valves 9.1 Materials All material used in valves should be compatible with the products which are to be conveyed in the pipeline. For use with po
44、table water, see the requirements given inAppendix B. 9.2 Control valves Valves should comply with the requirements of one of the following British Standard specifications: a) BS5150, Cast iron wedge and double disk gate valves for general purposes; b) BS5152, Cast iron globe and globe stop and chec
45、k valves for general purposes; c) BS5153, Cast iron check valves for general purposes; d) BS5155, Specification for butterfly valves; e) BS5163, Predominantly key-operated cast iron gate valves for waterworks purposes. Valves outside the range of sizes, or differing in type or otherwise not complyin
46、g with the specifications listed may be used, provided that they have at least equal strength and tightness and are capable of withstanding the test requirements of the appropriate specifications and the tests recommended in this Section of BS8010. A clear indication should be given on all valves of
47、 the direction of rotation needed to close the valve. The direction of rotation should be the same for any one pipeline installation. On new installations consideration should be given to standardizing the direction of closure as clockwise. 9.3 Air valves Automatic air valves are available in a numb
48、er of forms, the most common being single orifice, double orifice and kinetic. 10 Flanges Flanges may be made from a variety of materials including GRP or steel, but it is essential that those used are compatible with the use of the pipeline. Flanges should be compatible with flanges as specified in
49、 BS4504. Flanges complying with other standards may be used for particular purposes. Unless otherwise specified by the purchaser, PN16 flanges are usually supplied and are therefore suitable for working pressures up to and including16bar, particularly for water industry applications. The use of high tensile bolts of smaller diameter than the corresponding mild steel (MS) bolts to facilitate manufacture and installation of larger diameter flanges is permitted. BS4772 gives details of the bolt hole diameters for such flanges. Such fla
