Standards for HDPE Pipe

Recommended standards for polyethylene pipe

Polyethylene Pipes have different standards for different applications. We list some of the most reputable ones for you, which, of course, did not include the German standard DIN because of its detailed description and details on the site, the standard polyethylene section.
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AWWA M55 : - 1st PE Pipe Design and Installation

PE Pipe Design and Installation - AWWA MANUAL M55 - First Edition : A fundamental understanding of material characteristics is an inherent part of the design process for any piping system. With such an understanding, the piping designer can use the properties of the material to design for optimum performance. This chapter provides basic information that should assist the reader in understanding how polyethylene’s (PE’s) material characteristics influence its engineering behavior. PE plastics form flexible but tough products and possess excellent resistance to many chemicals.

AWWA C906-07 :

Polyethylene (PE) Pressure Pipe and Fittings, 4 In. ( 100 mm ) Through 63 In. (1,600 mm), for Water Distribution and Transmission - : This standard describes polyethylene ( PE ) pressure pipe made from materials conforming to standard PE code designations PE , PE and PE .

ISO --E

Thermoplastics pipes for fluids under pressure - Mating dimensions of flange adapters and loose backing flanges - : This International Standard specifies the mating dimensions of flange adaptors of thermoplastic materials and the corresponding dimensions of loose backing flanges to be used with thermoplastic pipes under pressure. It applies to flange adaptors and loose backing flanges for use with pipes with nominal outside diameters dn from 16 mm to 1 200 mm and nominal pressures up to 16 bar’) (PN 16).Tables 2 and 3 specify dimensions for socket fusion systems of polyethylene (PE) and polypropylene (PP) and solvent-cemented systems of unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C) and acrylonitrile/butadiene/styrene (ABS). Tables 3 to 5 specify dimensions for butt fusion systems of polyethylene (PE) and polypropylene (PP).

ISO :

Polyethylene (PE) pipes and fittings - Determination of the tensile strength and failure mode of test pieces from a butt-fused joint - : This International Standard describes a test method for determination of the tensile strength and tensile failure mode of butt-fused polyethylene (PE) pipe assemblies.The method is applicable to butt-fused joints between PE pipes with a nominal outside diameter of not less than.The method may be used, together with other test methods, to evaluate the quality of the butt-fused joints.

API SPEC 15LE :

Specification for Polyethylene Line Pipe (PE) - : The purpose of this specification is to provide standards for polyethylene (PE) line pipe suitable for use in conveying oil, gas and non-potable water in underground, above ground and reliner applications for the oil and gas producing industries. The standard does not propose to address all of the safety concerns associated with the design, installation or use of products suggested herein.

NFPA 24 :

Standard for the Installation of Private Fire Service Mains and Their Appurtenances - : This standard shall cover the minimum requirements - for the installation of private fire service mains and their appurtenances, which include supplying the following: (1) Automatic sprinkler systems (2) Open sprinkler systems (3) Water spray fixed systems (4) Foam systems (5) Private hydrants (6) Monitor nozzles or standpipe systems with reference to water supplies (7) Hose houses

DIN :

Polyethylene (PE) - Pipes PE 80, PE 100 - Dimensions : - This standard applies for pipes made of polyethylene (PE), PE 80 and PE 100, and melt flow indices from nominal 0,2 g/10 min up to 1,4 g/10 min (DIN EN ISO -1, condition T), which meet the requirements according to DIN .

ISO :

Thermoplastics pipes for the conveyance of fluids - Resistance to internal pressure - Test method - ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories - Test methods and basic specifications

ISO :

Polyethylene (PE) pressure pipes and fittings, metric series - Dimensions of flanges - Specifies the principal dimensions of loose backing flanges for butt or socket fusion welded flange adaptors and clamping flanges. It applies to flanges for pipe sizes from 16 to 315 mm outside diameter and for nominal pressure up to 1 MPa - ISO/TC 138/SC 2 Plastics pipes and fittings for water supplies

ISO :

Thermoplastics pipes - Resistance to liquid chemicals - Classification - Part 1: Immersion test method - This standard was last reviewed and confirmed in . Therefore this version remains current. ISO/TC 138/SC 3 Plastics pipes and fittings for industrial

ISO :

Buried polyethylene (PE) pipes for the supply of gaseous fuels - Metric series - Specifications -ISO/TC 138/SC 4 Plastics pipes and fittings for the supply of gaseous fuels

ISO :

Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation - This standard was last reviewed and confirmed in . Therefore this version remains current.ISO : specifies a method for predicting the long-term hydrostatic strength of thermoplastics materials by statistical extrapolation. The method is applicable to all types of thermoplastics pipe at applicable temperatures. It was developed on the basis of test data from pipe systems. ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications

ISO :

PE/metal and PP/metal adaptor fittings for pipes for fluids under pressure - Design lengths and size of threads - Metric series - This standard was last reviewed and confirmed in . Therefore this version remains current.Specifies the design lengths and size of threads for polyethylene/metal adaptor fittings and polypropylene/metal adaptor fittings for pipes under pressure. It also specifies the dimensions at the socket and spigot ends of the fitting.

ISO :

Thermoplastics pipes for fluids under pressure - Mating dimensions of flange adapters and loose backing flanges -his standard was last reviewed and confirmed in . Therefore this version remains current. Gives the mating dimensions of flange adaptors of thermoplastic materials and the coresponding dimensions of loose backing flanges to be used for thermoplastic pipes under pressure.

ISO :

Thermoplastics materials for pipes and fittings for pressure applications - Classification and designation - Overall service (design) coefficient - Establishes the classification of thermoplastics materials in pipe form and specifies the material designation. Also gives a method for calculating the design stress. Applies to materials intended for pipes and/or fittings for pressure applications. This standard has been revised by ISO :

ISO -1:

Plastics pipes and fittings - Equipment for fusion jointing polyethylene systems - Part 1 : Butt fusion - This standard has been revised by ISO -1:

ISO -2:

Plastics pipes and fittings - Equipment for fusion jointing polyethylene systems - Part 2 : Electrofusion- ISO -2: specifies performance requirements for electrofusion control units for use with polyethylene (PE) electrofusion fittings for the supply of gaseous fuels or for the conveyance of water for human consumption, including raw water prior to treatment and for the conveyance of water for general purpose or other fluids.ISO -2: is applicable to control units with current or voltage control for fitting systems based on standard resistance wire heating technology.This standard was last reviewed and confirmed in . Therefore this version remains current.

ISO -3:

Plastics pipes and fittings - Equipment for fusion jointing polyethylene systems - Part 3 : Operator's badge

ISO -4:

Plastics pipes and fittings - Equipment for fusion jointing polyethylene systems - Part 4 : Traceability coding - ISO -4: specifies an encoding system for data on components, assembly methods and jointing operations for polyethylene (PE) piping systems for gas supply, for use in a traceability system.This part of ISO is applicable to PE pipes, fittings and valves conforming to ISO standards for gas supply piping systems and also to the assembly operation utilizing methods such as fusion using a heating tool (butt, socket and saddle fusion), electrofusion (socket and saddle fusion), induction fusion and mechanical jointing.This standard was last reviewed and confirmed in . Therefore this version remains current.

ISO :

Thermoplastics pipes for the conveyance of fluids - Determination of resistance to rapid crack propagation (RCP) - Small-scale steady-state test (S4 test) - ISO : specifies a small-scale (S4) test method for determining the arrest or propagation of a crack initiated in a thermoplastics pipe at a specified temperature and internal pressure.ISO : is applicable to the assessment of the performance of thermoplastics pipes intended for the supply of gases or liquids. In the latter case, air can also be present in the pipe.This standard was last reviewed and confirmed in . Therefore this version remains current.

ISO :

Thermoplastics pipes for the conveyance of fluids - Determination of resistance to rapid crack propagation (RCP) - Full-scale test (FST) - This standard has been revised by ISO :

ISO :

Polyolefin pipes for the conveyance of fluids - Determination of resistance to crack propagation - Test method for slow crack growth on notched pipes - ISO : specifies a test method for determining the resistance to slow crack growth of polyolefin pipes, expressed in terms of time to failure in a hydrostatic pressure test on a pipe with machined longitudinal notches in the outside surface. The test is applicable to pipes of wall thickness greater than 5 mm. This standard was last reviewed and confirmed in . Therefore this version remains current.

ISO :

Polyethylene pipes - Resistance to slow crack growth - Cone test method - ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications - This standard was last reviewed and confirmed in . Therefore this version remains current.

ISO :

Plastics pipes and fittings - Pressure reduction factors for polyethylene pipeline systems for use at temperatures above 20 degrees C - Gives a method for the derivation of reduction factors to be used to obtain the maximum allowable operating pressure for elevated-temperature operation of polyethylene (PE) pipeline systems. Applicable to fluids which do not adversely affect the long-term properties of the polyethylen material at temperatures between 20 °C and 40 °C. This standard has been revised by ISO :

ISO :

Plastics pipes and fittings - Mechanical-joint compression fittings for use with polyethylene pressure pipes in water supply systems - This standard has been revised by ISO :

ISO/TR:

Plastics pipes and fittings - Combined chemical-resistance classification table - The materials covered by the classification are: low-density polyethylene; high-density polyethylene; polypropylene; Poly(vinyl chloride), unplasticized; Poly(vinyl chloride), chlorinated; polybutene; Acrylonitrile/butadiene/styrene; Poly(vinylidene fluoride); cross-linked polyethylene. Three classes are distinguished: satisfactory resistance, limited resistance, resistance not satisfactory. Corrosion resistance is given to 427 chemicals of different concentration at different temperatures. This standard was last reviewed and confirmed in . Therefore this version remains current.

IS0/TR:

Fusion compatibility of polyethylene (PE) pipes and fittings - ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic

IS0/TS :

Polyethylene pipes and fittings for the supply of gaseous fuels - Code of practice for design, handling and installation - This standard was last reviewed and confirmed in

EN -1:

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE)- This part of EN specifies the general aspects of polyethylene (PE) piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this standard.

EN -2:

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2 : Pipes - This part of EN specifies the characteristics of pipes made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this standard.

EN -3:

Draft BS EN -3 Plastics piping systems for the supply of gaseous fuels - Polyethylene - (PE) - Part 3 : Fittings - This part of EN specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this standard.

EN -4:

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4 : Valves - This part of EN specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels.

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EN -5:

Amazon.com : HE OR SHE Silicone Baby Bottle - Anti Colic Bottles

Draft BS EN -5 Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 5 : Fitness for purpose of the system - This part of EN specifies requirements of fitness for purpose of the polyethylene (PE) piping system in the field of the supply of gaseous fuels. It specifies the definitions of electrofusion, butt fusion and mechanical joints.

DIN Standards

ISIRI Certificate

Polyethylene pipes for water supply are a relatively new type of communications, which replaced steel and cast iron products. The range of applications for such products is quite wide: drinking water supply, water supply and irrigation in summer cottages, pressure sewer, agricultural and irrigation conduits, fire water supply, drainage systems.

Distinctive characteristics of polyethylene

Technical characteristics of polyethylene pipes for water supply largely depend on the properties of the materials from which they are made. Products are manufactured from PE 63, PE 80 and PE 100. Polyethylene PE 80 is less dense, durable and has a lower melting point. However, it is more plastic and resistant to various types of deformation.

Polyethylene PE 100 is more rigid and dense in structure. It is tensile, but brittle at high temperatures.

Table 1

Characteristic Steel Cast iron PND unit of measurement Weight of 1 linear meter of pipe with a diameter of 16 cm 17,5 28,1 3,77 kg Lifetime about 15-25 about 80 about 50 years old Chemical resistance steady no sustainability high stability — Biological stability medium stability low stability high stability — Wear resistance middle low tall — UV interaction permeable not interacting collapses — Tensile Strength very small very small 20-38 MPa

Such characteristics make the HDPE pipe for water supply particularly attractive to the consumer.

Advantages of a polyethylene pipe for water

Polyethylene pipes for cold as well as hot water supply have a large number of advantageous characteristics that distinguish them from similar products from other materials. Manufacturers of polyethylene pipes for water note that their service life is more than 50 years. Such products are resistant to water hammer due to the ability to stretch a little under significant loads.

The polymer does not enter into an electrochemical reaction, which explains the corrosion resistance of water pipes. In addition, it is not exposed to chemicals, due to which it becomes possible to use them as underground pipes.

Note! Almost all pipes made of this material do not require additional thermal insulation when performing underground laying.

Since plastic is an environmentally friendly material, it is possible to use such products to supply drinking water.

Light weight and availability of auxiliary elements greatly simplify and speed up the installation of a cold (or hot) water supply system. In the process of manufacturing products, polyethylene is subjected to structuring, which gives the product greater reliability.

Product Specifications

In the labeling of polyethylene pipes for water supply, there are such data:

• manufacturer name, batch number and production date;
• grade of polyethylene (PE 100+, PE 100, PE 80, PE 63);
• appointment;
• SDR value
• product diameter and wall thickness;
• manufacturing standard.

According to the criterion of nominal or working pressure, the PND pipes are divided into products operating under reduced pressure, medium pressure and pressure head. Technical and operational characteristics of the latter type are regulated by GOST -. On the external and internal surface of the polyethylene pipe for cold water supply any extraneous inclusions are excluded.

The pressure of the medium depends on its temperature. The table shows the reduction coefficients for polyethylene PE 100.

table 2

Water temperature (working) Pressure reduction factor (working medium) up to 20 ° С 1 26-30 ° C 0,87 36-40 ° C 0,74

The polyethylene pipe for hot water is able to withstand temperatures up to +110 ° C. Also, such an element can be used in a system that undergoes freezing due to resistance to temperatures up to -110 ° C.

The diameter of the pipe for water supply varies from 16 to 110 mm. They are produced in bays or coils up to 1 thousand meters long and in segments 12 meters long and with a diameter of 110 to mm. Working pressure range HDPE pipes for water ranges from 10 to 25 atmospheres.

Networks of cold and hot water supply using HDPE pipes

HDPE pipes for drinking water grade PE 63 usually have a diameter of up to 6 cm and a wall thickness of up to 4.5 mm. The value of the working pressure must be greater than 1 MPa. The supply of drinking water can be arranged by pipes of other grades of polyethylene, if marked with a strip of blue. However, such products usually have a large diameter, which is not always convenient for installation of home water supply.

Note! High-tech HDPE pipes for hot water supply are produced from improved grades PE 80, PE 100, PE 100+. They are characterized by additional marking of PE-RT.

The main material is cross-linked polyethylene capable of withstanding temperatures of over 90 ° C. During operation, it does not lose its characteristics and maintains durability and strength.

For hot water PND pipe is single-layer and multi-layer. Strengthening the properties of polyethylene gives the addition of aluminum foil, steel, polypropylene polymers to the material, as well as fiberglass reinforcement. Installation of hot water can be carried out by pipes PN 20, designed for a working pressure of 2 MPa, temperature up to 110 ° C and reinforced with fiberglass, or PN 25 - pressure 2.5 MPa, temperature up to 75 ° C, reinforced with foil.

Methods for installing polyethylene pipes

Pipe connection largely depends on their size and purpose of the pipeline.

To date, 3 installation methods are used:

• via compression fittings;
• butt welding;
• electrofusion welding.

The choice of method depends on specific situations. For example, HDPE products with a diameter above 110 mm are often joined by welding. Couplings are usually used when working with low temperature conditions. For turns and branching of HDPE pipes, the system uses welded and cast fitting.

Installation of HDPE pipes for hot water supply involves taking into account such features:

• network laying depth should be lower than no more than 20 centimeters of the depth of freezing of the earth;
• if the PND of products is welded on a trench, the width of its bottom must be arranged 40 cm more than the diameter of the pipeline;
• water supply device with HDPE pipes involves filling them in a trench first with a layer of sand about 30 cm, and then with soil.

The selected compression fittings for the connection must be suitable for the type of pipe used and for the loads.

HDPE pipe welding

Welding equipment is used to create an integral connection. This technology is suitable if the pipeline is operated under pressure. Butt welding involves connecting pipes with a diameter of 50 mm or more. The ends of the products are heated and fastened under a press. The resulting monolithic compound is not inferior in strength to metal structures.

Details are firmly fixed in apparatus, and a heating plate is brought to them. After reaching the melting temperature, the tool is removed, and the ends of the pipes are pressed under pressure. The extraction of the joints occurs after the seam has completely cooled.

Note! Parts to be welded must have a wall thickness greater than 5 mm. The ambient temperature at which welding can be carried out is +15 - +45 ° C.

Electrofusion welding is in demand when pipelines withstand 16 atmospheres of pressure. After trimming the ends of the pipes, it is put on the end of the product couplinginto which the electric heater is laid. It is used to melt the polymer. Cooling, it turns monolithic design.

Polyethylene pipes are well suited for cold water supply systems (with carrier temperatures up to 40 ° C). The technical parameters of not all products made of this material are suitable for hot water. However, due to the variety, ease of installation and good performance, these pipes are widely used in everyday life and industry.

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