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Plastic Piping Definitions and Terms

Engineers Edge

Thermoset Piping Systems [PDF]

U.S. Army Corps of Engineers

<<Thermoset piping systems are composed of plastic materials and are identified by being permanently set, cured or hardened into shape during the manufacturing process. Thermoset piping system materials are a combination of resins and reinforcing. The four primary thermoset resins are epoxies, vinyl esters, polyesters, and furans. Other resins are available.>>

Using Plastic for Compressed Air Piping

Plant Engineering Magazine

REGISTRATION REQUIRED

<<The technology for using plastic for compressed air systems has been around for a number of years in Europe. Today, the use of plastic for clean compressed air systems has become widespread in the United States.>>

Factory -Designed vs. Field-Designed Double Containment Piping

PERMA-PIPE

<<A common mistake regarding double-contained piping is to make the simple assumption that double-contained pipe is merely a pipe within a pipe and that it can be easily fabricated in the field by an installing contractor. This simply is not the case. There is much more to double-contained piping than just sliding one pipe inside another. The integrity of a double-contained piping system is dependent upon many factors: the suitability of the materials used for the service conditions, the design of the piping system to meet the design conditions it will encounter and the details of construction. The complications associated with these considerations are compounded when different materials are used for the carrier pipe and containment pipes, particularly when nonmetals are involved. A properly designed, fabricated and installed piping system will provide many years of trouble-free operation.>>

Dualcast Piping Design Manual (PDF)

Fibercast Company

Low Pressure FRP Piping Engineering and Design Guide (PDF)

Fibercast Company

Double Containment Pipe

Becht Engineering Company, Inc.

<<Becht Engineering has performed a number of design, analysis, and design review projects on double wall piping systems constructed of metallic, thermoplastic (e.g. polypropylene), and thermosetting (e.g. FRP) material. We have found, particularly in our design review activities, that a commonly misunderstood and/or neglected aspect of the design is differential thermal expansion between the inner and outer pipe. This can be from normal operating temperatures of the contained fluid, or during occasional events such as steam out. The common situation is when the inner pipe may contain a hot fluid and expand lengthwise relative to the outer pipe. It can also contract relative to the outer pipe when containing cold fluids. An additional contributor, which can be significant for plastic piping systems due to their lower stiffness, is longitudinal expansion due to internal pressure.>>

Performance Pipe Engineering Manual

Chevron

Interactive Pressure / Temperature Diagram

Georg Fischer

Jointing Technologies

Georg Fischer

Conley Product Data & Engineering Guide

Conley Corporation

<<Useful information.>>

PPI Handbook of Polyethylene Pipe

Plastics Pipe Institute, Inc.

<<Engineering Properties of Polyethylene: A 58-page booklet reviewing the history, structure and fundamental properties of the polyethylene pipe. This report provides a basic understanding of polyethylene's physical and chemical nature and engineering behavior. Polyethylene Pipe and Fittings Manufacturing: A 21-page booklet describing production of extruded solid wall and profile wall polyethylene pipe and the molding and fabrication of fittings. Polyethylene Joining Procedures: A 20-page booklet describing the various methods used to prepare and join polyethylene pipe and fittings. Underground Installation of Polyethylene Piping: A 46-page booklet to assist the engineer with underground installation of direct burial polyethylene piping materials. Above Ground Applications for Polyethylene Pipe: A 25-page report of design and construction procedures for the use of polyethylene piping in above ground applications. Pipeline Rehabilitation with Polyethylene Pipe: A 24-page report of design and construction procedures for the restoration of pressure and non-pressure pipelines by sliplining new polyethylene pipe into deteriorated lines. Polyethylene Pipe for Horizontal Directional Drilling: A document that acquaints the reader with some of the important considerations for HDD and polyethylene pipe. Inspections, Tests and Safety Considerations: This document presents some of the inspections, tests and safety considerations related to installing polyethylene piping, placing an installed system in service and operating a polyethylene piping system..>>

Thermal Expansion and Contraction in Plastics Piping Systems

Plastics Pipe Institute, Inc.

<<The purpose of this technical report is to provide information on thermal expansion and contraction in plastic piping systems.>>

Vinyl Piping: Design Considerations

Vinyl by Design

<<The choice of piping system materials should be based on overall long-term value – including long-term costs, reliability, versatility, environmental impact and impact on drinking water safety and public health. PVC piping systems deliver value because of their high quality, corrosion-resistant, durable and environmentally sound characteristics.>>

Plastic-Lined Piping

Resistoflex

<<Types of liners, descriptions, chemical compositions, common industries served and applications.>>

PDF-Based Documentation Concerning Resistoflex Products, Very Comprehensive

Resistoflex

<<Thermalok, Swaging Process, Heat Tracing, Stress Cracking, Permeation, Liner Thickness, Resistoflex Fugitive Emissions Brochure, External and Internal Grounding Issues for Plastic-Lined Pipe, Slurry Applications, High Purity, Heat Tracing, Underground Applications,Piping Connection Details and more.>>

Designing Process Piping Systems

Chemical Processing Magazine

<<The design and specification of a fiberglass-reinforced plastic (FRP) piping support system should not be a complicated proposition. Adhering to the manufacturer's design recommendations, a general understanding of the product's strengths and limitations and the application of sound piping practices helps ensure a successful installation. This article looks at some general guidelines for designing with FRP pipe.>>

HDPE Pipe Joining Animations

ISCO Industries

<<Butt Fusion, Electrofusion, Extrusion Welding>>

<<There are three general methods used to join or connect lengths of pressure piping. These are by the use of threaded pipe and screwed connections, flanges and welded joints. Each of these methods has certain advantages and disadvantages and each will be discussed in the following sections.>>

The Facts About Corrugated Polyethylene Pipe

Corrugated Polyethylene Pipe Association

<<Over the past 30 years, corrugated polyethylene pipe has proven itself to be a strong, chemically inert, viable pipe for use in applications around the world. In 1996, the corrugated pipe industry produced over one billion feet of pipe (and that number continues to rise) as more and more users and specifiers take notice of its advantages over concrete, metal and other traditional pipe materials. Although corrugated polyethylene pipe has been used successfully for decades in a variety of drainage applications, it is relatively new when compared to concrete and metal. Yet the specification and use of corrugated polyethylene pipe is skyrocketing based on important advantages such as enhanced hydraulic flow and unparalleled chemical and abrasion resistance when measured against other materials. Corrugated polyethylene pipe is also easy to install and environmentally friendly.>>

Technical Reports and Notes Related to Plastic Piping

The Plastics Pipe Institute, Inc.

<<The Plastics Pipe Institute, Inc. (PPI) is the major trade association representing all segments of the plastics piping industry. PPI members share a common interest in broadening market opportunities that make effective use of plastics piping for water and gas distribution, sewer and wastewater, oil and gas production, industrial and mining uses, power and communications duct and irrigation.>>

Double Containment Pipe

Becht Engineering Company, Inc.

<<Becht Engineering has performed a number of design, analysis, and design review projects on double wall piping systems constructed of metallic, thermoplastic (e.g. polypropylene), and thermosetting (e.g. FRP) material. We have found, particularly in our design review activities, that a commonly misunderstood and/or neglected aspect of the design is differential thermal expansion between the inner and outer pipe. This can be from normal operating temperatures of the contained fluid, or during occasional events such as steam out. The common situation is when the inner pipe may contain a hot fluid and expand lengthwise relative to the outer pipe. It can also contract relative to the outer pipe when containing cold fluids. An additional contributor, which can be significant for plastic piping systems due to their lower stiffness, is longitudinal expansion due to internal pressure.>>

IPEX

IPEX Process Piping Design Manual (Plastic)


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