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FALL 2011

Distributor's Link Magazine Fall Issue 2011 / VOL 34 / NO.4

38 THE DISTRIBUTOR’S

38 THE DISTRIBUTOR’S LINK Applied Bolting Technology 1413 Rockingham Road Bellows Falls, Vermont 05101 Tel: 1-800-552-1999 Email: info@appliedbolting.com www.appliedbolting.com SPECIAL SQUIRTERS FOR SPECIAL PROJECTS Since 1994, Applied Bolting has manufactured and sold tens of millions of DTIs, which have been used all over the USA, Canada, Central America, South America, throughout the Middle East and the Pacific Rim. Our standard product line encompasses imperial sizes 1/2” through 1-1/2” in grades A325 and A490, and metric sizes M12 though M36 in grades 8.8 and 10.9. We also have sizes M36, M42 and M48 designed to serve the needs of the wind energy market. Occasionally we get requests for non-standard loads and sizes. We love solving problems for our customers, and we travel all over the world to do it. Sometimes the special request involves modifying the Squirter DTI dimensions to fit in confined areas. We’ve done this in sizes M24 through M36 grade 10.9 for numerous wind energy companies and for a provider a revolutionary space frame structural system in 1” and 1-1/4” grade A490. Other requests are for non-standard loads for special applications. Examples of this are for low-load 1” anchor bolts and M24 and M42 roof bolts for a mining application. In all cases our customers were aware of the benefits of using Squirter DTIs. They wanted to achieve the same level of quality assurance provided by Squirters in their non-standard applications. We recently designed and manufactured a Squirter for a truly special project. Ivanpah Solar Electric Generating System is a 392 megawatt (gross) solar complex using mirrors to focus the power of the sun on solar receivers atop power towers. Electricity is generated by turbines using steam from the solar receivers. The complex is comprised of three separate plants to be built in phases between 2010 and 2013. Bechtel is the engineering procurement and construction (EPC) contractor at Ivanpah. Applied Bolting has supplied Bechtel with Squirter DTIs used in projects all over the world. While many standard Squirter DTIs were specified for Ivanpah, Bechtel also requested a special Squirter to be used in the solar tower supporting the solar receiver steam generator. While the details of the design are confidential, the process used by Applied Bolting is typical of our approach to providing special solutions for our customers. 1.Define the desired Squirter inner and outer diameters, the minimum and maximum bolt preloads and the desired finish (galvanized, Dacromet, etc.) 2.Define the installation details: will the Squirter be installed under the head or under the nut; are special washers required to accommodate oversized holes. 3.Design the DTI using Applied Bolting’s proprietary Bumpology to achieve the desired loads. 4.Manufacture or modify tooling to produce the Squirters. 5.Produce/test prototypes to verify proper load performance. 6.Select the silicone fill levels to achieve DTIS (Drive it Till It Squirts). 7.Release design for full scale production. 8.Monitor and document manufacturing quality. 9.Ship the product and provide bolt installer training. In the case of the special Squirter for Ivanpah, we were able to modify existing tooling to achieve their load. This resulted in a shorter timeline for the project and considerably lower cost than tooling up from scratch. The photograph below shows the finished product. Rendering of the Ivanpah Solar Electric Generating System in Ivanpah, NM (picture courtesy of www.ivanpahsolar.com) Specially Designed Squirter DTI for Ivanpah SEGS please turn to page 159

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