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TESTING AND VERIFICATION
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Rotational Capacity Testing
Tests of bolt assemblies (without DTI's) measuring the capacity of the
bolt to be tensioned to a preload 15% above the minimum, with a "nut factor"
less than 0.25. Costs of these tests vary with bolt diameter and grade.
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DTI/Bolt Installation Verification Testing
Tests of bolt assemblies with DTI's measuring the ability of the DTI
to impart a preload in the bolt 5% higher than minimum, while showing
a "useable gap", and at the same time measuring the capacity of the bolt
set to "flatten" the DTI without undue inelastic deformation in the first
few threads. Costs per test vary.
Applied Bolting uses the newest bolt tester, built by Skidmore-Wilhelm
of Cleveland, which combines calibrated torque and tension.
Pictured
here is the 1 1/2" A490 SQUIRTER DTIs being successfully tested
under 2700 ft-lb of torque and 145,000 lb bolt tension.
We invite your inquires; please call
1-800-552-1999 within the USA
International inquires call
1-802-460-3100