A novel cyclone single stack system for building drainage

Author(s) : Mark Yu, Dongyu Fang, Peck Tze Kang, Amos Tay , Fan Liu

Large diameter pipe was introduced in refineries and petrochemical plant, desalination plant and power plant for water intake and sea out fall in the past decade. PE100-RC material was selectedfor its excellent balance of superior bi-modal stress crack resistance and consistent high stiffness modulus. Under the...

Author(s) : Mingyuan Hu, Dongming Yu, Zhangcheng Chen, Cheng Zhi, Kaige Duan

Studying in barrier property of TLCP/PO alloy and EVOH/PO alloy. Filtrating formulas with extruding alloy into pipes. Trying to coat alloy on pipes and co-extrude into two-layer oxygen barrier plastic pipe. The traditional Ethylene vinyl alcohol copolymer (EVOH) barrier plastic pipe used in internal closed-loop...

Author(s) : Ernest Lever, Yongming Liu, Yiming Deng

This collaborative program will provide an integrated set of quantitative tools that will provide a structured approach to reducing operational risk in vintage plastic distribution systems susceptible to Slow Crack Growth failures. A novel endoscopic structured light scanning tool will be developed and prototyped for...

Author(s) : Sun Qingjun, Liu Tongxi and Zhang Tianjun

A new composite PE pipe for pressure applications has been developed which combines the following features: polyethylene based, of structural wall, of multiple layers and steel reinforced. Another outstanding feature of this product is that large diameters up to dn2200-2600mm can be made and higher ring stiffness is...

Author(s) : Qu Yunchun, Sun Xuhui, Chen Guokang

The polyethylene resin whose relative molecular mass distribution shows bimodal (Bimodal PE) possesses not only favorable mechanical property, but also excellent processing property. Currently, Borstar Technology of Borealis Company—loop slurry reactor and gas fluidized bed reactor install in series, which is...

Author(s) : Dongming yu, Linan Chen

This article is the impact study on general plastic pipe performance when using Liquid Crystal Polymer (hereinafter LCP) and LCP alloy, the soaking extrusion in-situ composite technique and the coat-molding technique for plastic pipe extrusion. It turns out that the high barrier property of TLCP can help us...

Author(s) : Chen Zenggui

For PE pipes for water supply installed in the summer, the pipeline’s temperature under the sun exposure can influence the properties of the pipe. If you carry out the pressure tests directly, it can result in damage to the pipeline. So we conducted a detailed analysis and research on the influence of exposure to the...

Author(s) : Xu Yijiong, Liu lIangbing, Dongyu Fang, Cindy Wang, Jarmo Juhani Harjuntausta, Youssef Taha

Key words : Corrugated pipe, PP-HM, PE, sewage, drainage Whilst plastic pipes are already used in China for underground sewage and drainage applications the properties and processing limitations of the materials used are such that they are not able to fulfill all the requirements for large diameter or higher...

Author(s) : Chen Que, Xu Shengguang, Su Min

This paper will discuss the application of some kinds of steel reinforced plastic pipes for sewerage engineering in China, and give some proposals for the development of the product. Keywords : The large diameter; steel reinforced plastic pipes; pipes for sewerage engineering; application

Author(s) : Dongmei Zhe, Ruoqi Wei, Chang Liu, Ye Hua, Yu-e Li

The statistic data of the consumption of polyethylene pipe materials in China has been shown in this paper. The developing trend of polyethylene pipe materials in the following 5 to 10 years in China has been studied and the predicting data of the consumption of polyethylene pipe materials in China has been shown in...

Author(s) : Mason, Chen

The small scale steady state (S4) test is a convenient and relatively inexpensive means of measuring the critical pressure (Pc) for rapid crack propagation in plastic pipes. The critical pressure measured in the S4 test is not the same as the critical pressure measured in a full scale test, which more directly...

Author(s) : James Mason, John Chen and Gregory O’Brien

This paper presents an overview of the first high pressure polyamide-11 (PA-11) natural gas plastic pipe field installations with operating pressures of 150 to 200 psi. We describe the layout and operating pressures, the local soil and environment conditions, as well as the installation methods employed to complete...

Author(s) : Jivraj, Sehanobish, Dun, Damen, Wu, Zhou, Chen, Shulkin, Chudnovsky

Analysis of polyethylene (PE) pipes ductile failure (ballooning) suggests that it is directly related to the delayed necking phenomena and time to ductile failure of PE pipe can be evaluated as the time to delayed necking. The necking in polyethylene (PE) is studied under displacement control (ramp test) and load...

Author(s) : Mason, Chen, Dang