August — 2011 — The Expansion Joints Blog

Archive

Archive for August, 2011

Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance

August 29th, 2011 Comments off

This week’s featured article is on expansion joint burst testing. The objective of a burst test is to determine the ultimate pressure resistance that a bellows can absorb prior to failure. Burst tests help determine the margin of safety and safety factor to be used in a specialized bellows design. During a burst test, hydrostatic pressure is slowly increased until failure occurs, which usually happens in one to two hours. Burst testing is conducted at ambient temperatures to determine a bellows pressure rating. We follow all the necessary safety precautions for personnel involved, such as placing the bellows in a high strength steel cage and using a safety shut-off switch. Based on the burst test results, a safety factor is applied, thus establishing the ultimate pressure rating.

Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance Expansion Joint Burst Testing to Determine Ultimate Pressure Resistance

 

Webinar Giveaway: PT&P Nalgene Water Bottle

August 22nd, 2011 Comments off

If you would like a chance to win, simply attend one of our Webinars. If you want more chances to win or even win more than once, attend as many Webinars as we offer.

Register for the next Webinar

Webinar Giveaway: PT&P Nalgene Water Bottle

  • During the live presentation, attendees will be selected at random to receive a free PT&P Nalgene Water Bottle.
  • Open to U.S. and Canada Shipping only. Must be present the entire length of the Webinar to be eligible.
  • To receive the prize, you must be able to provide a valid mailing address within 24 hours after your name is announced.
  • Webinars are approved for 1 PDH credit hour for Texas Professional Engineers. After attending the live Webinar, email your request to enews@pipingtech.com.

Tied Universal Expansion Joints Designed for a Power Generation Plant in Texas

August 22nd, 2011 Comments off

Tied Universal Expansion Joints

This week’s feature is on tied universal expansion joints designed for piping in a power generation plant in Texas. They are 6″ in diameter, 60″ in length, and will be used in a hot air application. The pipe, lugs and weld ends are fabricated from carbon steel, and the bellows are 321 stainless steel. The expansion joints are designed for 100°F at 3 psig and are capable of 6″ lateral movement. Each unit was 100% dye penetrant tested and soap and air tested prior to shipment.

Fatigue Testing to Calculate a Life Span of 30,000 Cycles

August 16th, 2011 Comments off

Fatigue Testing to Calculate a Life Span of 30,000 Cycles

The video shows an expansion joint bellows being cycle tested through a specified design movement of 1-1/4″ to verify the calculated life span of 30,000 cycles. The number of completed cycles is recorded throughout the duration of the test. U.S. Bellows routinely performs this test to confirm designs and ensure a high quality product. We do extensive expansion joint product testing such as x-ray, burst, hydrostatic, ultrasonic, radiography, fatigue, PMI, pneumatic, magnet particle and helium leak testing depending on customer specifications. Each bellows and expansion joint unit goes through in-process quality control using a system of travelers, and a final in-house dimensional inspection is performed prior to shipping.

We’re now on facebook! Like our page for a chance to win an iPad 2.

August 9th, 2011 Comments off

Like usbellows new facebook page for a chance to win an iPad 2.We’re now on facebook!

Click the like button for a chance to win an iPad 2.

Our facebook fans are also…

  • the first to see the release of new products
  • included in facebook-exclusive drawings and give-aways
  • have access to the latest technical videos we have to offer
  • able to ask questions and get answers right away

Details:
- Drawing will be on Wednesday 8/31/2011 at 12 noon CDT
- Current facebook likers will be included in this drawing
- Winner will be notified by facebook message and has until Friday 9/2/2011 at 12 noon CDT to reply back with a valid mailing address to ship the iPad to (if there is no response by Friday 9/2/2011 at 12 noon CDT, an alternate winner will be selected).

 

Categories: Uncategorized Tags:

Comparison Chart for Selecting Fabric Expansion Joints

August 1st, 2011 Comments off

Trying to decide which type of fabric expansion joint to use in your application? Our new comparison chart lists the materials, temperature ranges, advantages, pressure, chemical resistance and applications.

View the Fabric Expansion Joint Materials Comparison Chart

The following are examples of expansion joints fabricated from a variety of materials.

Expansion Joints Fabricated with Neoprene Material:

Expansion Joints Fabricated with Neoprene Material

 

Expansion Joints Fabricated with Reinforced Silicone Material:

Expansion Joints Fabricated with Reinforced Silicone Material

Expansion Joints Fabricated with PTFE Impregnated Fiberglass Material:

Expansion Joints Fabricated with PTFE Impregnated Fiberglass Material

 

Expansion Joints Fabricated with Silica Fabric Cloth Material:

Expansion Joints Fabricated with Silica Fabric Cloth Material

border

Contact Us: +1 (281) 241-9418 Toll Free: (855) 591-0906 Fax: +1 (713) 731-8640 sales@usbellows.com
Our Parent Company: Piping Technology Pipe Supports, Pipe Clamps, Pipe Hardware & Insulated Pipe Shoes
Fellow Subsidiaries: Sweco Fab: ASME Vessels, Pig Launchers, Duct Work, Strainers & Spectacle Blinds
 Pipe Shields: Pre-Insulated Pipe Supports, Slides, Guides & Anchors

Fronek Anchor/Darling
: Snubbers, Sway Struts & Sway Braces


Copyright © 2017  U.S. Bellows, Inc. All Rights Reserved. Privacy Policy