Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.


Development of large-diameter continuous-fiber - Reinforced thermoplastic pipe

 

Papers

Plastic Pipes Conference Association # 2018 Las-Vegas

Fengliang Jiang, Nian Wu

This article discusses the development of the technique in producing large-diameter, medium-and-lowpressure water-delivery pipes. The continuous fiber-reinforced thermoplastic tapes perfectlyimpregnated with thermoplastic resin are wound layer by layer to form three-layer fibre reinforced polyethylene(PE) composite pipe (CGFR-PE) with inner and outer polyethylene layers as the protective functional layer and the middle continuous fiber glass belt as the reinforcing layer. There are stiffening rib designed in the outer layer to be used for bell-and-spigot joint.

The large-diameter (>1000mm) medium and low-pressure (0.4-1.6Mpa) water delivery pipe market is very attractive for plastic pipes. Compared with the traditional thermoplastic solid-wall pipe, the continuous glass fibre reinforced polyethylene(PE) composite pipe (CGFR-PE) has its significant advantages of technical and economic indicators below: Stable and reliable performance, environmental protection and energy saving, high pressure bearing capacity, convenient and reliable socket connection, low production cost and the like, which has a good market prospect in this field. This text introduces the structural design, strength calculation, connection technology, production technology and equipment of the glass fibre reinforced PE pipe, etc. The speciallydesigned multi-station winding device and the socket online finishing device are all our patented technology-friendly products. This will also help greatly improve the production efficiency, and ensure the overall consistent performance of the pipe wall and make the socket connection more reliable. For the reason that it is very difficult to detect the pressure-resistant properties of large-diameter composite pipes by exerting hydrostatic tests. Therefore, this text mainly discusses how to test the 'initial apparent radial strength' and the 'initial apparent axial strength' by means of the 'Split Disc Method' (ASTM D 2290), instead of the traditional hydrostatic test (ISO 4427). This text also explores a test scheme for detecting the long-term reliability of composite pipe by means of the Split Disc Method.

Related keywords : Continuous glass fiber belt; impregnate; wind; bell-and-spigot joint.
Please note that the whole article content is available on PPCA website only :

Related papers

2021 Amsterdam : APPLICATION OF PP-R COMPOSITE REINFORCED PIPES IN HOT AND COLD WATER SYSTEMS

Author(s) : Lei Wang, Guozhi Xu, Qiaoping Qiu, Weihua Lu, Yanwang Han

PP-R (random copolymerized polypropylene) has been widely used in hot and cold water systems. However, the standard PP-R pipes have the disadvantages of a large high-temperature thermal expansion coefficient, an insufficient notched impact strength, and a low temperature and pressure resistance. In this paper, a new...

2021 Amsterdam : DESIGN OF A DISTRIBUTED STRAIN MONITORING SYSTEM FOR HDPE WATER PIPELINES CROSSING AN EARTHQUAKE FAULT

Author(s) : Peter Hubbard, Linqing Luo, Andrew Yeskoo, Kenichi Soga, Krista (Moita) Araica, Gus Cicala, Marshall McLeod

Seismically active faults pose a risk to buried water pipelines that can be complicated to quantify. Fault type, slip rate, pipeline geometry, and soil conditions all factor into a complex soil-pipeline interaction. For critical pipelines that cross faults, high-density polyethylene (HDPE) has become an attractive...

2021 Amsterdam : RECENT DEVELOPMENTS IN INTEGRAL JOINT RESTRAINTS

Author(s) : Guido Quesada

An important breakthrough for belled PVC pipe was made around 2006, when the first versions an integral joint restraint were released, after about two years in development. This type of restraint comprises a casing, usually made of metal such as ductile iron or stainless steel, a rubber seal, and a “C” grip ring,...

2021 Amsterdam : WORLDWIDE ISO ROUND ROBIN STUDY ON PHASED ARRAY ULTRASONIC NON DESTRUCTIVE TEST FOR ELECTROFUSION SOCKET JOINTS

Author(s) : Jörg Wermelinger, Sunwoong Choi

In the development of an international standard on non-destructive test for polyethylene electrofusion socket (EF) joints, the inspection capability of the phased array ultrasonic test (PAUT) in assessing flaws in the joints was needed to establish procedure qualification of the test method. For this, a worldwide...

2018 Las-Vegas : A new flexible jointing method of plastic (PE) pipes

Author(s) : Yilaing He, Tianjun Zhang

A new electrofusion PE belt is developed by reinforcing it with various layers of steel mesh. It’s of sandwich structure, consisting of steel mesh reinforcement, heating wire and polyethylene. One or more layers of steel mesh is encapsulated in the middle, and heating wire is embedded onto “inner side” of the belt....

2018 Las-Vegas : Innovations in production of corrugated pipes

Author(s) : J. Vlachopoulos, M. A. Lupke

A very tight-fitting bell-and-spigot inline coupler, minimizing the gap between connecting pipe segments, and a space efficient pulsating corrugator, requiring just three mold block pairs, were developed. The author of a recent article in New York Times [1] claims that some 300 Billion dollars are needed to repair the...

2016 Berlin : Acceptance criteria for non-destructive testing of PE electrofusion joints

Author(s) : Peter Postma

On request of the Dutch DSO’s and in cooperation with all important Dutch stakeholders (producers, suppliers, contractors and the regulator), Kiwa Technology investigated the relevancy of defects found with Phased Array Ultrasonic Testing (PAUT) and if it was possible to determine acceptance criteria. The project...

2016 Berlin : Big data, big difference

Author(s) : Nick Mark, Eric Bridgstock, David Carey

An insight into a unique approach to the management of electrofusion and butt fusion joint quality on polyethylene pipelines. The presentation will reference experience and learnings from a system that has already been used in the field to great effect (see Abstract) and a new approach to butt fusion (see enclosed...

2016 Berlin : Digital radiography of PE joints

Author(s) : Mats Bergman, Karin Jacobson

The Swedish Water & Wastewater Association (SWWA) has funded a R&D project to investigate different methods suitable for installation inspection of PE joints in field. Methods like phased array ultrasonic testing (PAUT), microwave technology and digital radiography were studied. Digital radiography shows promising...

2016 Berlin : Fiber reinforced large diameter polyethylene pipe

Author(s) : Shi Jingdong, Tan Gangqiang

FIBER REINFORCED LARGE DIAMETER POLYETHYLENE PIPE (GRPE) consists of fiberglass as the middle layer, and HDPE as inner and outer layers to provide required strength and stiffness. This composite pipe is made by spirally winding under hot melt condition, pipe pressure ranges is from 0.8 to 1.6 MPa. The fiber reinforced...

2016 Berlin : Long-term behavior of glass fiber reinforced polyethylene

Author(s) : Mitsuaki Tokiyoshi, Philippe Vanspeybroeck, Kensei Inoue, Stephan Fullgrabe, Takashi Kuriyama, Toshinori Kawabata, Joji Hinobayashi

Big diameter polyethylene pipes used an important role due to superior performance (Flexibility, light weight, long lifetime and tighten joint) for water and industrial supply to several countries. However according to standard concerned Polyethylene pipes as like ISO4427 we are being used solid wall pipe with too...

2016 Berlin : Quality control testing of joints in gravity flow plastic pipes

Author(s) : David Becerril García, Jacinto Cortés-Pérez, Ian D. Moore

Joint performance of joints in gravity flow buried pipelines is very important since joint failure could produce structural or service limits to the system. Standards have been developed to evaluate that joints have the necessary structural and leakage capacities which specify test methods that are not clear and do...

2016 Berlin : Residual quality of excavated UPVC gas and water distribution pipelines

Author(s) : Frans Scholten, Ernst van der Stok, Britta Gerets, Mirko Wenzel, Mike Boege

The current condition of 35-50 years old uPVC main (110 mm) and service (32 mm) pipes for gas and water distribution was assessed. From 27 excavation sites in total about 400 segments of 1.2 meters length each were tested using many techniques. The K-value (average molecular weight) of the PVC, the degree of gelation...

2014 Chicago : Analytical study of the mechanical behavior of gasket type: spike-bell

Author(s) : J. Cortes-Perez, S. V. Rivera-Cortés, N. García Castillo, A. Reyes S, R. Cornejo T

An analytical study about the mechanical behavior of pipes union system type: spike-bell-seal during hermeticity test is present. The analysis consist in develop a mathematical model of the gasket considering it, as a load transmission through elastic bodies which is a novel analysis procedure appropriate to solve...

2014 Chicago : Benefits Gained Through Electronic Collection, Wireless Transmission and Analysis of Butt Fusion Joint Data

Author(s) : Vince King

In order to greatly reduce the risk of a compromised butt fusion joint in a plastic piping system, the ability to collect, analyze, and trace butt fusion data is becoming increasingly more important, and in many plastic pipeline specifications a mandated procedure. When the parameters and critical steps of the butt...

2014 Chicago : Easy Branches : Avoid Pressure Derating for Fabricated Tees in Your Pipe System

Author(s) : Robert Eckert

New types of saddle fittings enable convenient and economic ways of installing branches or vents on PE pipes. In conjunction with a gate valve, branches can even be installed without disrupting service, by "hot tapping" the main pipe. In addition, pipes with localized damage such as excessively deep scratches or...

2014 Chicago : Energy-to-Failure to Assess the Quality of Electro Fusion Joints in PE Pipes

Author(s) : Frans Scholten

When electro fused joints in newly installed PE100 pipelines are tested using the Peel test (ISO 13954 [1]) they too often fail in a brittle manner. Contamination in the interface between the surfaces to be fused is usually the cause. About 77 % of the contaminants in 39 cases of brittle test bars could be identified...

2014 Chicago : Performance of Polyethylene Pipes with Glass Fiber

Author(s) : M.Tokiyoshi, H.Kudo, M.Endo, K.Inoue, N.Shibasaki, T.Nakayama, H.Matsukuma, M.Kodera, Y.Niinomi, M.Masuko, P.Vanspeybroeck

Polyethylene pipes are successful worldwide due to the superior performance (Flexibility, light weight, lifetime, tighten joint) for water and sewerage supply. However according to our ISO standard concerned Polyethylene pipes we have to use solid wall pipe with too thick against for internal pressure. The major job...

2014 Chicago : Pipeline Performance Experiences during Seismic Events in New Zealand over the Last 27 Years

Author(s) : Frank W. O’Callaghan

Functioning pipeline systems are a cornerstone of urban human communities, to bring in the clean water on demand for drinking, washing and sanitary needs, and in turn remove the used water from drains, waste, and stormwater sources. If the pipe system is suddenly rendered non-functional, such as by seismic event;...

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE
TOP