www.pipingtech.com

APRIL, 2001

www.pipingtech.com  |  www.usbellows.com  |  www.swecofab.com

Product of the month

Figure 1: 47.25" I.D. x 23.625" I.D. 5A516-70 Transition Pieces w/ 5A36 stiffner for ethylene plant in  Saudia Arabia.

Figure 2: 47.25" I.D. Universal Expansion Joint w/ SB443 round corners bellows, and SA516-70 flanges for ethylene plant in Saudia Arabia.

FEA Analysis

Piping Technology & Products, Inc. has extensive experience in engineering drawing production stress analysis and full house finite element analysis capabilities that are used to prove designs. The design software is developed in house and the calculations contrived are further checked using hand calculations. 
For more information, please contact PT&P FEA Team at info@pipingtech.com

Pipe Supports Catalog

Includes spring hangers (constant and variable load), hydraulic and mechanical snubbers, sway struts, pipe clamps, beam attachments, fabricated pipe shoes, slide plates, instrument supports, anchor bolts, embed plates. Request your copy today.
Areas of Interest
PT&P Manufactures Custom Designed Embed Plates for Gold Mine in Cajamarca, Peru
How to Avoid Pipe Stress
  Find out about pipe stress and ways you can reduce it. 
We're More Than Just Pipe Supports!
  Piping Technology & Products, Inc. has the products for all your engineering and construction needs. Check out the diverse line of products that we have to offer............
FEA Analysis
  PT&P has engineering drawing production stress analysis and full house finite element analysis that are used to prove designs. Find out what FEA Analysis is and how it can benefit you. 
Discussion Forum
Join our discussion forum and obtain a variety of information on the manufacturing and engineering industry.
PT&P Manufactures Custom Designed Embed Plates for Gold Mine in Cajamarca, Peru
Piping Technology & Products, Inc., designed and manufactured 150 special embed plate pieces for Latin America’s largest gold producer.  This project involved the production of one hundred fifty, 93" x 27" x 1" embed plates which required the use of 80,000 pounds of steel and anchors. The custom designed, carbon steel, embed plates are to provide stability for the feed openings of four mineshaft reclaim tunnels and are scheduled to be put to use immediately. For more information about this project, please refer to our Online Press Release or contact us at webmaster@pipingtech.com.

How to Avoid Pipe Stress
What is Pipe Stress?
"Pipe Stress" refers to piping flexibility analysis.  

High Stress Locations on Pipes
 High stress areas generally occur at piping elbows, tees and other branch connections. The B 31.3 Piping Code provides stress intensification factors for such locations. Computer piping programs generally do piping flexibility analysis for those other than very simple systems.

Signs of Pipe Stress
An overstressed system could fail by fatigue, leading to a crack, buckling of the elbows, or overload on equipment nozzles.

How to Reduce Pipe Stress
High stress should be uncovered in the design stage. However, existing systems can be checked for incipient cracks by x-ray, ultrasound, acoustic emission or dye penetrant. Also, rerouting the pipe can provide more flexibility and sometimes reduce high stress. When rerouting is impossible or not practical, then pipe stress can be reduced significantly by adding Bellows Expansion Joints. Any sections of the pipe showing cracks must be replaced.

For more information, please contact PT&P FEA team at info@pipingtech.com or post your inquiries at the PT&P Discussion Forum

We're More Than Just Pipe Supports!
Piping Technology & Products, Inc. has the products for all your engineering and construction needs. Check out the diverse line of products that we have to offer:
  • pipe hanger and pipe support (variable and constant load and big-ton)
  • mechanical snubber and hydraulic snubber
  • pre-insulated pipe support (cryogenic support, cold shoe, hot shoe)
  • instrument support
  • hold-down clamp for compressor lines
  • expansion joint (metallic thin-wall, metallic thick-wall, fabric, rubber, slip-type)
  • ASME code pressure vessel and tank
  • spectacle/line blind and orifice plate
  • pig launcher and receiver
  • silde bearing - Teflon®, graphite, and stainless steel

For further information, visit www.pipingtech.com or contact us at info@pipingtech.com.

Would you like for PT&P/U.S. Bellows/Sweco Fab to come out to your office to make a technical presentation on a specific topic (e.g. expansion joints, pre-insulated pipe supports, slide plates) or to make a general presentation?  Contact PT&P Outside Sales at +1-713-731-0030 or on e-mail at quote@pipingtech.com to setup a time and date.

If you are interested in placing an advertisement in PT&P electronic newsletter, please contact webmaster@pipingtech.com.

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