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Applied Bolting Technology manufactures direct tension indicating (DTI) washers. These washers are used to get bolts installed to the correct TENSION, regardless of the bolt's torque resistance. Sizes are made to suit bolts from 1/2" to 1 1/2" and M16 to M36 diameter in several strength grades.
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WIND POWER ...................................................

.................... forget torque ~ get tension

 
Tens of millions of Squirter® DTI's have revolutionized the bolt-up process on power plants and other structural steel projects, making bolt installation and inspection easy and accurate. Now the Wind Power Industry is beginning to look at them also.

Watch for big M36 to M64 squirter® DTI’s made to suit the DIN 6914 bolt tensions in a wind generator shaft near you!

read more...
 
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SQUIRTER® DTIs ...................................................

.................... the best way to bolt!

SELF-INDICATING SQUIRTER® DTI

Self-indicating direct tension indicators, called Squirter® DTIs, are made to the same high quality standard and compression load resistance as our standard DTIs. Squirter® DTIs are simply regular DTI's with a flexible silicone embedded in the depressions under the bumps. As the bumps in the steel DTI washer are compressed by the action of tightening the bolt, the silicone is squirted out and becomes a visible indicator of correct bolt tension.

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Direct Tension Indicators provide the high levels of bolting quality assurance needed for bridge, heavy construction, buildings, and Original Equipment bolting applications. The goal of our technology is to provide you the assurance that 100% of the minimum specified tension is achieved each time you tighten the bolt.

RESEARCH REPORT:

In 2008 the University of Toronto, at the request of Applied Bolting, subjected Squirter® DTI's to independent testing with the objective of determining just how accurately they work.

Read the report here


ARTICLES

Wind Generator Tower Splice Bolts: The Problems in North America
by Wayne Wallace – President, Applied Bolting Technology Published in North American Windpower magazine


LATEST PROJECTS

 
TXU Sandow 2007
Contractor: Bechtel Construction
Tonnage: Approx. 10,000 tons
Location: Rockdale Texas
Squirter® DTIs: Dacromet Coated