PPCA conference : 1979 Brigthon

In this section, you will find a database of all articles presented and published by PPCA in biannual conferences organized by PPCA since 1970.
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A Study of Long-Term Strength and Creep Rupture in uPVC Plastics Pipe

Author(s) : Jumppanen, Leppaevuroi, Vaelimaa 1979 Brigthon

The influence of processing variables on long term strength of pipe materials and on long term resistance values to internal pressure of pipes have been studied by the use of axial creep and creep rupture tests and standard pressure tests....

An Analysis of Past and Future Markets for Thermoplatics Pipes

Author(s) : McNally 1979 Brigthon

Production and Consumption data f o r the m a j o r European pipe producing nations a r e given and the m a j o r pipe m a r k e t s f o r PVC and the Polyolefins a r e identified Comparison i s m a d e with m a r k e t data f r o m the United States. P r o j e c t i o n s f o r the future of the European pipe i...

Applications and Applicational Limits of Plastic Pipework Systems for Industrial Installations

Author(s) : Lindner 1979 Brigthon

Pipework systems from plastics have obtained, a prominent significance for todays industry. In this field they have, in a noteworthy manner, replaced other materials previously used for such purposes. Their anplicational range is very extensive. Cost saving installation methods, high operational safety and low...

Corrosion Control with Glass Fiber reinforced Plastics in the Power Industry in the USA

Author(s) : Moore, Sprecher 1979 Brigthon

Power engineers have an urgent need for the extreme corrosion resistance which GRP can provide. Engineers in the power industry are finding that GRP materials have the properties needed to meet the new requirements - and that they can do so at reasonable cost. We believe that the power industry will continue to...

Designing to Prevent Failure by Buckling on PVC Pipes

Author(s) : Stapel, Steenbergen 1979 Brigthon

A s u r v e y i s g i v e n o f s u c t i o n p r e s s on PVC p i p e s D i s c u s s e d a r e b u c k l i n g o f e l a s t i c m a t e r i a l s , t h e d e v i a t i o n s o f e x i s t i n g t h e o r i e s o c c u r r i n g because o f non c i r c u l a r , v i s c o - e l a s t i c i t y o f PVC, f o r c e d...

Examination of cross linked Polyethylene for Heating Systems

Author(s) : Roseen, Bergman 1979 Brigthon

Hot w a t e r p i p e s made of p e r o x i d e and s i l a n e c r o s s l i n k e d polye t h y l e n e have been t e s t e d c o m p r e h e n s i v e l y s i n c e 1974. The t e s t programme i n c l u d e s l o n g t e r m h y d r o s t a t i c t e s t s o f s t r a i g h t p i p e s a t e l e v a t e d t e m...

Experience of Long-Term Behaviour of uPVC Gravity Sewers

Author(s) : Gehrels, Elzink 1979 Brigthon

The main concern over the behaviour of buried plastics pipes is the occurrence of deflection. Theories are useless if not checked by field measurements to remove uncertainties, Over the last 15 years. 25 km of pipeline in 600 different...

Failure Processes in Filament Wound GRP Pipe

Author(s) : Hull 1979 Brigthon

Failure of laminates is described in terms of the fracture of the constituent laminae with particular reference to GRP pipe. The information required to characterise the properties of the laminae is considered and the methods of relating the applied loads on the laminates to the laminae stresses is introduced....

Fracture Modes in Medium Density Polyethylene Gas Piping Systems

Author(s) : Bragaw 1979 Brigthon

Medium density polyethylene pipe systems have been successfully used in North America and the United Kingdom for gas distribution In the 12-year period over which experience has been accumulated, field situations presenting various potential hazards have been analyzed to enable the pipeline engineer to anticipate...

Glassfibre Reinforced Plastics Pipework for Chemical Plant

Author(s) : Gray 1979 Brigthon

Pipework constructed in glassfibre composites is now used in many Process Industries. The design methods derived for these materials have shown that they exhibit characteristics not usually considered in general engineering design. These concepts are briefly described together with their relevance in the overall...

Grow Moulding A new Conception in the Manufacture of Plastics Pipes

Author(s) : Hart 1979 Brigthon

With the ever increasing cost of o i l and that of £ram it, there is an urgent need t o use p l a s t i c s advantage. One large o u t l e t f o r these materials non pressure purposes I n the larger diameters with pipes made £ran conventional materials such p l a s t i c s materials derived materials t o t...

Loading Tests on uPVC Pipes installed in cohesive and non-cohesive Bedding Materials

Author(s) : Trott, Stevens 1979 Brigthon

Lengths of 300 mrn uPVC p i p e (Class B ) were s u b j e c t e d t o a s t a n d a r d pro-gramme of dynamic and s t a t i c loading i n t r e n c h e s dug i n a l a b o r a t o r y t e s t p i t f i l l e d with sandy c l a y . Ten t e s t s a r e described, with t h e p i p e s i n s t a l l e d i n a range o f...

Materials Selection for HDPE Pipes

Author(s) : Price, Gray 1979 Brigthon

The properties of HDPE pipe materials necessary to satisfy processing and performance requirements are considered. Methods of predicting pipe performance are discussed, and experimental data are presented to support the predictive technique. High density polyethylene is now well established as one of the major...

National and International Standardization related to Plastics Pipes

Author(s) : Jones 1979 Brigthon

Standardization is defined and the national and international committees responsible for work on plastics pipes detailed. Their work is discussed both with a historical approach and in relation to the problems.

Non-Destructive Testing of Heated Tool Butt Welded Pipes Using Optical Methods

Author(s) : Potente, de Zeeuw 1979 Brigthon

Ultrasonic and radiographic methods were used up to now to locate discontinuities in materials. The author shows that it is also possible to determine other factors which have an adverse effect on quality. A num- ber of conditions are discussed...

Performance Testing of GRP Pipe Systems

Author(s) : Nunnikhoven 1979 Brigthon

A description is given of the standard practice performance testing of GRP pipes and materials.

Plastics Gas Distribution Systems, A Review of Current Practice

Author(s) : Benjamin 1979 Brigthon

Current practice and experience can give valuable information to those applying plastics to gas distribution systems for the first time. However, it is essential that this information only be applied with appreciation of the factors which should determine the choice of material and system for a particular...

Plastics in Gas Distribution

Author(s) : Ewing 1979 Brigthon

The introduction of metric polyethylene gas distribution systems, metrication of the infra structure and adoption of new techniques collectively implies a short cut to chaos. Progress has been dramatic by any standard and this paper highlights those factors contributory to the implementation of the above programme by...

Plastics in gas distribution

Author(s) : Reynolds 1979 Brigthon

The introduction of metric polyethylene gas distribution systems, metrication of the infra structure and adoption of new techniques collectively implies a short cut to chaos. Progress has been dramatic by any standard and this paper highlights those factors contributory to the implimentation of the above programme by...

Plastics Pipe Systems for Hot Water Services

Author(s) : Elliott 1979 Brigthon

The a u t h o r s e e k s t o d e f i n e t h e s e r v i c e c o n d i t i o n s f o r p l a s t i c s p i p e systems f o r use i n domestic hot w a t e r d i s t r i b u t i o n and conventional c e n t r a l h e a t i n g systems, o u t l i n e s methods o f a s s e s s i n g l o n g t e r n performance o f m a...

Plastics Pipes in Water Distribution - Hopes and Fears

Author(s) : Burgess 1979 Brigthon

The use of p l a s t i c p i p e s i n w a t e r d i s t r i b u t i o n networks, as t r u n k mains, d i s t r i b u t i o n mains and s e r v i c e p i p e s i s considered. Reference i s made t o t h e b e n e f i t s o f u s i n g p l a s t i c s pipes, t o g e t h e r w i t h t h e problems encountered i n a...

Polypropylene Pipes - Properties and Choice

Author(s) : Colbert 1979 Brigthon

Polypropylene is a versatile nlaterial for the nlanufacture of pipe and in this gaper a1 up to date view is talcen of its properties - drawing in addition on the now lengtlly history of satisfactory performance in service. Because PP is...

Predicting the Creep Rupture Life of Polyethylene Pipe

Author(s) : Barton, Cherry 1979 Brigthon

A number of t e c h n i q u e s have i n t h e p a s t been proposed f o r t h e d e t e r m i n a t i o n of t h e l i f e of a p l a s t i c p i p e exposed t o p r e s s u r e . T h i s p a p e r examines t h e y i e l d c r i t e r i a which may b e a p p l i c a b l e t o s u c h a s y s t e m and p r o p o s e...

Present and Projected Markets for HDPE Pipe in Scandinavia

Author(s) : Asman 1979 Brigthon

Scandinavia consists of Sweden,Norway and Denmark but in this paper Finland will be included also; giving a geographical block termed the Nordic countries. Together the Nordic countries have a population of 22 millions. Their per capita consumption for high density polyethylene materials for pipe is the highest in...

Pressure Fatigue Testing of Plastics Pipes

Author(s) : Joseph 1979 Brigthon

The c o n s t r u c t i o n of a p p a r a t u s f o r c y c l i c p r e s s u r e f a t i g u e t e s t i n g of 60 mm and 168 mm d i a m e t e r p l a s t i c p i p e s i s d e s c r i b e d . The r e s u l t s of t e s t s a t 1 Hz a t 20°C and a t 10°C a t v a r i o u s s t r e s s a m p l i t u d e s and...

Slip-Lining of the Municipal Sewer Mains with HDPE Piping in the US

Author(s) : Taylor 1979 Brigthon

In the United States, the success of High Density Polyethylene with it 'S butt fusion joining has revolutionized the gas distribution industry and is now becoming a real and necessary consideration in the rehabilitation of Water and Sewer mains as well as sewer service...

Standard Testing of Pipes and the Examination of Failures

Author(s) : Berry 1979 Brigthon

The paper reviews the current Standards for plastics pipe testing explaining the significance of the results achieved In the second half of the paper a number of investigations into pipe failures are described showing the method of attacking such...

Stimulating Local Authorities to Use Plastics in On-Coming Municipal Projects

Author(s) : Howie 1979 Brigthon

The major r :arket for plastics pipes is still in the building, civil engineering and related public services industries but, although proven Pully reliable and much more economical on these n :lplications, less than half the pipes used...

Surge and Fatigue in uPVC Sewer Rising Mains

Author(s) : Kirby 1979 Brigthon

The causes of surge in sewer rising mains are discussed together with failures experienced in uPVC pressure pipes used for rising mains. These are related to laboratory data on the dynamic fatigue strength of uPVC pipe material Steps taken to...

The Advantages and Suitability of uPVC Pipes for Hot Climates

Author(s) : Doughty 1979 Brigthon

As a result of his company's experience in the Middle East, the author hopes to give details of the advantages of uPVC and other plastic pipe systems for hot climates, tempered with the constraints necessary to produce a trouble free installation. Thereby indicating the inherent suitability of these nine systems for...

The Need to Revise is 1167, Dealing with Pressure Testing

Author(s) : Gons 1979 Brigthon

The i n f l u e n c e o f t e s t c o n d i t i o n s and i m p o r t a n t t e s t p a r a m e t e r s o n t h e r e s i s t a n c e o f uPVC p i p e t o i n t e r n a l w a t e r p r e s s u r e i s i n v e s t i g a t e d , I t i s shown t h a t f a i l u r e t i m e depends on t h e method o f c l a m p i n g...

The Role of GRP - An Introductory Review

Author(s) : Barker 1979 Brigthon

Glass reinforced thermosetting plastic pipes share with thermoplastic pipes the advantages of corrosion resistance and lightness. They are currently finding increasing market acceptance, especially for large diameter water distribution and sewerage applications where the alternatives of...

The Use of Fracture Mechanics for the Prediction of Failure of Thermoplastics Pipes

Author(s) : Birch, Howarth, Marshall 1979 Brigthon

T h e p a p e r i s a b r i e f resum; o f a l a r g e p r o j e c t w h i c h h a s s o u g h t t o i n v e s t i g a t e t h e u s e o f f r a c t u r e mechanics i n evaluating t h e f a i l u r e p r o p e r t i e s o f a number o f common t h e r m o p l a s t i c s p r e s s u r e p i p e m a t e r i a l s...

Crack Propagation in PE Pipes

Author(s) : Gaube, Mueller 1979 Brigthon

Evaluation and Usage of Joint Seals of UPVC Pipe Systems

Author(s) : Hunt 1979 Brigthon

Polyvinylidene Fluoride for Piping Operating Under Highly Corrosive Conditions

Author(s) : Dilley 1979 Brigthon

Processing of Polypropylene Pressure Pipes

Author(s) : Muschik, Detter 1979 Brigthon

The Lubonyl DSA - An Underground Sewage Pipe System

Author(s) : Svensson 1979 Brigthon

Members of
the Association

BOREALISBOROUGEINEOS O&PIRPCLyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE