How to Select Industrial Pipe Industrial pipe is a broad category of fluid and solid transport hardware used in many applications and industries. Usually cylindrical, pipe and rigid tube is used in process, energy, construction, and many civil infrastructure applications. Industrial pipe and rigid tube are manufactured from a wide variety of materials for the transport of an equally wide variety of solids and fluids. Industrial pipe is often, but not necessarily, cylindrical in shape, and...
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Q & A on Industrial Pipe

We asked our users for their input on Industrial Pipe. Here are the results of 234 users familiar with Industrial Pipe.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing industrial pipe design?
38 answers
Answers:
Welding, Cutting of various alloys. Automation of welding. Matching material with service required- meaning finding what metals perform and will withstand the chemicals, oils, salt water, whatever it might be that you are putting them through so they will last with minimal degradation.
~Manufacturing, Pinole, CA
Flame retardant plastics; petroleum-compatible plastics; welding/assembly techniques that allow above ground double-walled piping.
~Patrick L, Regulator, Montreal, Canada
For us, availability of sizes and stress grades, and (as previously stated), state-of-the-art methods of joint designs.
~Steve H, Design Engineer, Melbourne, Victoria, Australia
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Q:
From your perspective, which companies are creating the most innovative industrial pipe?
21 answers
Answers:
Special Metals Corporation (Huntington Alloys) Haynes International, Inc. Miller Centrifugal Castings Co.
~Larry D, Design Engineer, Slidell, LA
There are many. Some random names like JFE, Tubos Reunidos, Sumitomo, Tenaris and many others.
~B M, Quality Control, Vadodara, India
Most companies that use or design large steel fabrications.
~Len M, Estimator, Tilbury, Canada
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Applications and UseTop

Q:
What are some of the applications you have used industrial pipe for?
60 answers
Answers:
Transportation and distribution of products: Subsea or offshore piping (oil & gas), onshore pipelines (oil & gas), principal process piping in refineries, production offshore facilities and generation power plants (steam, condensate, steam tracing, gas, oil, gasoil, chemicals, demineralized water, cooling water, fuel oils, fire water, potable and service water, etc), auxiliary services in refineries, offshore facilities and generation power plants (air, water, lubricant oil, N2, chemicals injection, sewage, drains, effluents, water treatment, etc)
~Alfredo R, Engineering Consultant, Maracaibo, Venezuela
Pipe manifolds for water pumps from 1 MGD up to 10 MGD. I've worked in refineries running pipe manifolds for Furnaces, Heat Exchangers, Fire protection using both fresh and salt water. I've been in the Boilermaker, Pipe fitter, Welder trade for over 30 Years. And have done many many jobs involving Industrial pipe.
~Manufacturing, Pinole, CA
Pipelines oil & gas, Oil refineries process piping. Coal Fired / Nuclear power plants - process piping - main steam - boilers etc. Semi-conductor, process (gases) & other systems. Hospital & large commercial blds - heating & cooling
~Joe M, Project Manager, Hillsboro, OR
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Q:
Please share with us any “non-standard” applications that industrial pipe has been used for.
22 answers
Answers:
Everything we do. That's my problem. Recently a large cable-net structure supporting aluminum panels. Structural frame was made from 273mm and 323mm diam grade 350MPa steel CHS (pipe) carrying axial loads, both in-plane and out-of-plane moments, shear and high torsional forces. Designing these connections was a nightmare!
~Steve H, Design Engineer, Melbourne, Victoria, Australia
Rocket engine ground test stand propellant run systems, purge gas, and coolant systems; including flight weight special test equipment pipe spools. Test stand flame deflector coolant water supply systems.
~Larry D, Design Engineer, Slidell, LA
Reusing piping for traffic advertising or advices and ornamentation, flow water below both sides of roads, structures and structural supports, accessories for lifting loads, ship parts constructions.
~Alfredo R, Engineering Consultant, Maracaibo, Venezuela
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of industrial pipe?
20 answers
Answers:
Failure of system due to not sufficiently accounting for thrusts from discharging fluids or velocity changes through valves or other sudden flow area changes. Testing of valve controls with system still pressurized led to a major event where a run tank relief valve was severely damaged causing six month delay in getting ready for program tests. Disconnecting clamped connectors without assuring line was depressurized caused a serious injury (fortunately no one was killed). Not accounting for displacements or normal misalignments when designing mechanically sealed joints causing major test program delays.
~Larry D, Design Engineer, Slidell, LA
I would not call it a disaster, but I was involved with a re-tubing of a high pressure boiler on a naval ship where a new process of welding was introduced. Although the welders were versed in the technology, other trades did not put a great deal of emphasis on cleanliness in the fabrication technology. Caused quite an embarrassment and a lot of money to do the job over.
~Tom Q, Facilities Manager, Media, PA
Using black pipe for water lines, or intermixing galvanized and black pipe in the same pipe run. Like any industrial product, there are correct and incorrect ways to apply industrial pipe. Don't assume you know the way it should be; make sure you either know or rely on someone who does.
~Bruce C., Facilities Manager, Newton, NC
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FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
27 answers
Answers:
Bigger range of pipe sizes, and longer lengths. Most available in 6.5m, not enough in 9m or 12m lengths. Also, some sections are ONLY available in pre-gal, not black.
~Steve H, Design Engineer, Melbourne, Victoria, Australia
Large diameter pipes have limitations of hydrotesting at manufacturers, leading to overdesign and escalated costs.
~B M, Quality Control, Vadodara, India
Easier access to application history. For example, 316 ss does not react the same in "similar" processes.
~Purchasing, Columbia, MS
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of industrial pipe?
23 answers
Answers:
If your client has a piping class, use it. Make flexible designs, support it correctly, check and define piping that require flexibility or stress checking (see application code), revise design code according application (ej: ANSI B31.3, ANSI B31.4, ANSI B31.8, ANSI B31.1, etc.), check catalogs and consult manufacturers for use of fiber glass piping, define clearly the design pressure, design temperature and fluid handling chemical characteristics, with this information calculate according to applicable code each size and schedule, define corrosion allow, consider 12,5% manufacture tolerance.
~Alfredo R, Engineering Consultant, Maracaibo, Venezuela
Pay attention to operating conditions that are outside normal standard conditions of industry; such as thermal displacements beyond those normally occurring in industrial processes, material ductility/toughness at cryogenic temperatures or with wide thermal cycles, high momentum transfer loads during high transients, minor displacements in mechanical joints causing loss of leak tightness.
~Larry D, Design Engineer, Slidell, LA
Take into account the real working temperatures. For example- A Polyethylene pipe exposed to sunlight is bound to reach temp. well over 40c (104F), which is the max. allowable temp. for a PE, so it will eventually fail.
~Yosi B, Technical Support, Golan Plastic, Israel
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using industrial pipe?
23 answers
Answers:
Check actual offer of manufacturers and delivery time, consult with the client for materials and schedules standarization (piping class document ), optimize sizes and schedules to avoid huge variety of these, select materials according to design temperature, design pressure and handling fluid, use standard sizes for piping, check piping documentation and quality certificates, check piping physically when arrive to warehouse (hits, bumps, deformations, defects, imperfections, etc)
~Alfredo R, Engineering Consultant, Maracaibo, Venezuela
Have an intimate knowledge of ASME B31.3 and the other ASME B31 series piping codes covering the system applications of interest. Research all applicable ASTM material codes when designing and selecting pipe and pipe fitting materials. Have ASME Boiler and Pressure Vessel Code as a ready reference for welding and pressure relief requirements.
~Larry D, Design Engineer, Slidell, LA
Buy in quantities large enough to avoid shipping costs. Shipping costs can be very significant with the price of diesel fuel. Try to get a good 'take off' from the P&ID's to allow for valve purchase in a large lot ( try for an 80 -90% original buy out and get a 1 year price guarantee)
~Mike C, Project Manager, Culver, OR
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