HDPE Pipe Joining Animations

ISCO Industries

<<Butt Fusion, Electrofusion, Extrusion Welding>>

Introduction to Pipe and Pipe Fittings

Southern Alberta Institute of Technology

<<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.>>

Glass Lined Piping Systems

VITCO Corporation

<<30 years experience has proven the long term durability of the glass lined system. The major cost savings which result from elimination of costly cleaning operations easily justify the relatively low initial cost differential for installation of this system. In short, the unique characteristics of the economical Glass Lined System has made it standard for Wastewater Treatment facilities and is leading to development of new products and end uses to solve wide ranging problems relative to lubricity and resistance to corrosion, abrasion, temperature and thermal shock.>>

Piping Differences - Past and Present

East Coast Industries, Inc.

<< In recent years, ECI has performed numerous investigations of either very old pipe installed in the early 1900's, or at properties where ss tolerant engineerina combination of old and new pipe exist. We have found the test results a remarkable demonstration of how environmental concerns and government restrictions, combined with cost cutting and leg practices, have greatly reduced the life expectancy of most new piping installations. First and foremost is the obvious superiority in quality and corrosion resistance of pre World War II pipe to that manufactured today - whether foreign or domestic. Our testing of steam systems from 1909 have shown a minimal loss of only perhaps 40% from the original wall thickness. Testing of some galvanized steel domestic water risers from 1920 have shown little if any wall loss. We have certified 80 year old steam condensate pipe, which traditionally suffers from the acidic conditions of condensate requiring frequent replacement, as useful for another 50 years of service. >>

Concrete Pipe FAQ

Concrete Pipe Association of Australasia

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.>>

General Description of Seamless Standard and Line Pipe Grades

U. S. Steel Group

Pipe Weight / Water Weight / Water Volume

Henning, Metz, Hartford ∓mp;mp;mp; Associates, Inc.

History of Plumbing in America

PlumbingWorld.com

<<Boring Business: Early settlers knew nothing of lead or iron pipe - they knew only to build with wood, the country's bounty. Water pipes were made of bored-out logs, preferably felled from hemlock or elm trees. The trees would be cut into 7 ft. to 9 ft. lengths, their trunks around 9-10 inches thick. Wooden pipe laid below ground created several problems, however, especially in larger settlements or towns. Uneven ground below the joists would cause sags in the log where water would stagnate, infest with insects, and generally leave a woody taste. The borers themselves were colorful characters who usually traveled in pairs from town to town bringing news and gossip of the area as they went about their job. With a five-foot steel auger between them, a handle at one end, they would fix the log by eye, size it up with a point of the ax, and drill or bore out the center. Ramming one end to make a conical shape, they would jam the logs together in a series, using a bituminous-like pitch or tar to caulk the joists. Sometimes they would split the log and hollow it out, put it together, connect the logs with iron hoops or get the blacksmith to caulk the logs with lead.>>

Thermomechanically Rolled Flat Products

K. Hulka

<<Steels for large diameter pipe were for many years the most relevant application of the thermomechanical rolling process and many trends in steel development originated from pipe steel development. The economic transport of liquid or gaseous media in pipelines across remote areas with arctic climates or under water has only become feasible with TM-grades. Table I shows the development since the 1960's where by replacing the normalizing process with thermomechanical rolling, strength, toughness, ductility and weldability have all been improved. Furthermore, the transportation of sour gas containing media has also become possible.>>

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.>>

Double Containment Piping Systems

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.>>

Cast Iron Soil Pipe and Fittings Handbook

Cast Iron Soil Pipe Institute

Tube and Pipe Specifications

Juha Haapala's Tubenet

Cryogenic Piping

Vacuum - Jacketed Piping

<<VJP is the preferred piping solution for the safe, reliable, cost-effective transfer of cryogenic liquids -- such as liquefied nitrogen, oxygen, argon, helium, and hydrogen -- from storage tanks to points-of-use within a processing plant.>>

IPEX

IPEX Process Piping Design Manual (Plastic)

NAPF Standards

Iron Pipe Information

FRP Piping Applications

Dover Corporation

<<The costs associated with the installation of a stainless steel, lined steel, or exotic metal system can be prohibitive to new capital expenditures, or maintenance of existing pipe systems. This can lead to events where our environment is exposed to potential danger. The ease and economy with which Smith Fiberglass pipe systems can be assembled often results in installed costs that are significantly lower. The chemical resistance charts for the different FRP pipe products which we are able to offer to you list hundreds of chemical reagents that are currently used in industry today. We have provided the following table to provide you with a brief glimpse into the depth of the choices which you have. We have highlighted some of the main applications that each product might be used for, and have also included a few reference chemicals for which each product is recommended. Please contact Dover Industrial for specific chemical recommendations.>>

Economical Pipe Sizing

Queen's University Mechanical Engineering Department

<<In all engineering systems there is a tradeoff between capital cost and operating costs that governs design decisions for the system. As an analogy, consider the decisions in buying a car. A new car will have a high purchase price, but in the short term will have very low operating costs: repairs will be covered by warranty and gas and oil consumption should be reasonable. A much older car will have a much lower purchase price, but the ongoing costs of gas, parts and repairs will offset that advantage. The best decision, on a cost basis, probably lies somewhere in the middle, perhaps in purchasing a two or three year old car. Of course, other factors like cash flow will affect this decision. In piping systems the dominant costs are the capital cost of installing the system, the cost of the energy to operate the system and some allowance for maintenance and other overheads. The objective is to select a pipe size that minimizes the total annual cost for a given service.>>

Specification Guides, Free Design Software, Technical Literature

Smith Fiberglass Products Company