POLYBUTYLENE TECHNICAL MANUAL - MCE purpose of this technical manual is to provide an objective and scientific justification of the technical characteristics of the SDP Terrain Polybutylene

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  • POLYBUTYLENE TECHNICAL MANUALA professional system for plumbing and heating installations

    POLYBUTYLENE TECHNICAL MANUALA professional system for plumbing and heating installations

  • CONTENTSFOREWORD

    1. PLASTIC MATERIALS 1.1. Where do plastics come from? 1.2. What are plastics like "inside"? 1.3. Classification of plastic materials 1.4. Thermoplastics 1.5. Thermoset plastics 1.6. Elastomers 1.7. Terrain polybutylene (PB) 1.8. Essential characteristics of plastic materials

    2. THE HISTORY OF POLYBUTYLENE-1 (PB-1) 2.1. The raw material: Polybutylene-1 (PB) 2.2. PB-1 in the indoor distribution of drinking water 2.3. The Terrain PB-1 system in the indoor distribution of drinking water

    3. POLYBUTYLENE CHARACTERISTICS AND PB PIPING SYSTEM 3.1. Polybutylene characteristics 3.2. Comparison of physical characteristics between materials 3.3. Noise transmission 3.4. Water hammer 3.5. Oxygen permeability 3.6. Legionella 3.7. Fire 3.8. Pipe bending 3.9. Oxidising agents 3.10. Cryogenic behaviour3.11 Embedded pipes

    4. PRESSURE AND TEMPERATURE RESISTANCE OF THE PIPING SYSTEM 4.1. Calculation procedure for the working pressure of a pipe 4.2. Calculation for the design pressure of a pipe 4.3. Regression curve 4.4. Safety factor 4.5. Calculation example 4.6. Pipe series 4.7. Standard pressures obtained from this process4.8. Dimensional equivalences

    5. INTERNATIONAL STANDARDS FOR PIPING SYSTEMS 5.1. International standards for PB systems: UNE-EN ISO 158765.2. Field of application of PB systems 5.3. Classification of working conditions for PB systems 5.4. Calculation method for pipe dimensioning 5.5. Pipe marking

    6. PB-1 SYSTEMS AND SUSTAINABLE CONSTRUCTION 6.1. Comparative environmental impact study 6.2. Standardisation and legislation. Future trends

    7. JOINT SYSTEMS 7.1. Push-fit joint 7.2. Socket fusion joint 7.3. Electrofusion joint 7.4. Butt fusion joint 7.5. Flanged joint 7.6. Transition joints 7.7. Leak testing in the installations

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  • 8. FLOW RATE AND HEAD LOSS 8.1. Installation dimensioning 8.2. Head loss in pipes 8.3. Localised head loss 8.4. Temperature correction factor 8.5. Head loss for handling other fluids 8.6. Calculation example

    9. EXPANSION, COMPENSATION AND CLAMPS 9.1. Expansion and compensation 9.1.1. Expansion and stress in different materials 9.2. Installation techniques 9.2.1. Installation of variable length pipes 9.2.1.1. Placement of the anchor points 9.2.1.2. Compensation of the variation in length using an expansion offset 9.2.1.3. Compensation of the variation of the length with a loop 9.2.1.4. Examples of expansion absorption using expansion offsets and loops9.2.1.5. Installation of clamps for installations that allow variations in piping length. 9.2.1.6. Compensation of the length variation with continuous horizontal supports9.2.1.7. Installation of assembly columns with natural loops9.2.2. Installation of non-variable length pipes 9.2.2.1 Recommendations for fixed-assembly installations9.2.2.2 Distances between clamps for fixed assembly 9.2.2.3 Selection of the threaded rod for securing clamps 9.2.2.4 Examples of fixed-assembly installations 9.3. Selection of the installation procedure

    10. INSTALLATIONS10.1. Line or traditional installations 10.2. Installation of distribution using manifolds (spider type) 10.3. Accessible installations (pipe-in-pipe) 10.4. Installations in plasterboard drywalls 10.5. Large diameters

    11. THERMAL INSULATION FOR PIPES

    12. Chilled water application12.1. Chilled water

    13. QUALITY CONTROL 13.1. AENOR Certification for PB pipes 13.2. AENOR Certification for PB fittings 13.3. AENOR Certification for the complete PB system 13.4. Kiwa certification13.5. Nueva Terrain laboratory and workshop13.6. List of applicable standards and legislation

    ANNEXES: Annex 1: Polybutylene regression curve Annex 2: Regression curves of various materials at 80C Annex 3: Miner's rule Annex 4: Calculation of stress design for class 2 in PB pipesAnnex 5: Head loss in PB pipes according to international standard ISO/TR 10501Annex 6: Graph for the calculation of expansion in PB pipesAnnex 7: Graph for determining the expansion force in PB pipes Annex 8: Table of PB resistance to chemical agentsAnnex 9: Sum-Up of TENDER specification according TERRAIN SDPAnnex 10: Hot water expulsion time

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  • The purpose of this technical manual is to provide an objective and scientific justification of the technical characteristics of the SDP Terrain Polybutylene piping systems for hot and cold water supply, as well as their use in these installations. The wide range of the content and the depth we could go into could lead us to publish an encyclopaedia on the subject.

    But this is not our aim; what we are hoping to do is offer a clear explanation of our piping systems and show the reader their differ-ences and advantages compared to other systems and materials. The different qualities and advantages of plastic compared to metal systems are widely known and accepted. However, this is not the case between the newer products within this market. It is common to find a wide range of piping systems on the market that fall under the same umbrella term or definition of plastic piping, but, as we will see below, their characteristics and features are completely different.

    The main goal, therefore, is to fully and concisely describe both the material and the system, although frequently these two concepts are not compatible. The aim of this manual is not to go into depth in the theory of the mechanical and hydraulic aspects, as this can be found in the technical literature and some cases it is not specifically related to piping materials. In addition, the results of this technical investigation have also been summarised and transposed into the applicable legislation and standards as recommendations or installation requirements. The regulatory scope will also be quoted, although only in general and depending on the corresponding application.

    Polybutylene, as we will verify below, is the thermoplastic with the best physical and mechanical characteristics of those used for water piping in the home. These characteristics, in conjunction with the variety and reliability of the joint techniques of our system, make it the optimal choice for all installations and situations. To complement this manual, Nueva Terrain has additional information in the form of Technical Product Sheets or Technical Notes that go into further detail in various topics regarding installations, legislation and instructions for assembly.

    Finally we would like to remind you that beyond the written description of the system, which reflects the product knowledge and catalogue at the time of writing, our Technical and sales Departments are available to respond to any of your doubts regarding the installations and materials whenever you need them. Please do not hesitate to contact us so that together we can create the safest and most useful installations at all times.

    The experience of the company, a presence in the market since the 1960s, the availability of our own workshop for the construction and maintenance of the manufacturing tools, the practical knowledge of our technical office in the design and monitoring of installa-tions from their launch and their own commercial network that covers the whole country all make Nueva Terrain a market leader in terms of material quality and technical support for customers. The contact with the market at the start of our research and development projects, with a specific department within the company, as well as in the continuous improvement of our processes. Your opinion and suggestions are the driving force that leads us to update and improve our product catalogue. Without your collaboration neither the complete current range of our company nor its evolution since its beginnings in the 1960s would have been possible.

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    Foreword

  • Plastic materials have been a true revolution for the industry in the 20th century with the widest range of applications. The following is a basic explanation of their origin and properties, focusing on the application and the product we provide.

    1. PLASTIC MATERIALS

    1.1. Where do plastics come from?

    1.2. What are plastics like "inside"?

    1.4. Thermoplastics

    1.5. Thermoset plastics

    1.6. Elastomers

    1.7. Terrain polybutylene (PB)

    1.8. Essential characteristics of plastic materials

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    1. PLASTIC MATERIALS

  • 1.1. Where do plastics come from?

    Plastic materials are obtained as the result of a chemical transformation of natural products or by synthesis from organic com-pounds, whose main constituents are carbon (C) and hydrogen (H). The basic materials for the production of plastics are natural products such as cellulose, coal, petroleum and natural gas, where the latter two are the most important. In a refinery, distillation is used to separate petroleum into several fractions. As the different components of crude oil have different boiling points, heating in the fractioning tower provides gas, naphtha, fuel oil, etc. successively. The waste product from this process is asphalt. All the fractions are constituted by hydrocarbons, which are differentiated by the size and the configuration of their molecules. The most important fraction for the manufacture of plastics is naphtha. Naphtha is transformed by a process called cracking, in a mixture o