We used about 10,000 cubic feet of Dritherm insulation supplied in super sacks at the ConocoPhillips Borger Texas Refinery. Changes in a process upgrade called for heat tracing of 70,000 feet of existing piping. Portions of this piping were underground—especially at road crossings. For the underground portions we had to uncover the existing lines, install and test the heat trace, then put on an insulation and backfill the trench. The Dritherm helped us immensely by limiting the amount of time we had to keep the trench open. We were able to schedule shipments so that the trucks would pull in right when we were ready to install the insulation. We simply swung the super sacks over the trenches and dumped in the Dritherm. Leveled off the top and laid the bags on top. Then we covered it up. The Dritherm proved to be a real cost saver for us. The time to install was much shorter than if conventional insulation was used. We also didn't have to worry about having the right size for the different pipe sizes as Dritherm is definitely one size fits all. I had never heard of Dritherm before this use. More or less stumbled on it during a web search. The local sales rep then came out and explained the material to us as well as the methods of installation. Using Dritherm was definitely a good move.
Burns and McDonnell Kansas City, MO
Entergy Services Inc.
"Since 1994 we have used your DriTherm material as the insulating media for all of our underground fuel oil piping installations for all of the following reasons. We have found the DriTherm meets all of the heat retention and moisture exclusion requirements in our fuel oil system piping envelopes. DriTherm is easy to handle and install. No vibrating or tamping is required in DriTherm installations." Entergy Services, Inc. – Vicksburg, MS
Pennsylvania State University
"In response to your request, we have used Protexulate (now known as DriTherm) as a pourable insulation for underground steam/condensate/air lines on the University Park Campus for roughly twenty years. We have used something over 2,500 tons of this material with excellent success." Penn State University – University Park, PA
University of Rochester
"The University has approximately eight miles of underground distribution steam and condensate return lines that are insulated. Steam is provided 100 psig and a 340-deg. F. temperature. Various parts of the distribution system have been worked on recently. Upon uncovering pipes that have been protected with Protexulate / DriTherm for more than 17 years, they looked like new". University of Rochester – Rochester, NY
"I wanted to say thanks for you product and technical support. NORESCO and the United States Military Academy (USMA – West Point) appreciated your company’s willingness to deliver product for 800 feet of underground steam line. This order was relatively small and of little interest to manufacturers of pre insulated under ground piping systems. However, this steam line was of critical importance to USMA and NORESCO." NORESCO – Southboro, MA
New York Power Authority
"Since 1993 DriTherm has been installed on our underground hot oil, steam and condensate piping based on the recommendations of a corrosion engineer at a local firm. Prior to the installation of DriTherm, our underground piping was inbstalled using pre-insulated systems, as well as field applied insulation, with mixed results. The Authority has installed over 20,000 CF of DriTherm on over 2,500 LF of piping since being introduced to the product. We feel that it is a product that will prevent corrosion and provide thermal efficiency when installed properly." New York Power Authority – White Plains, NY
"As you know, the steam export line to UNC-Charlotte is an underground line which is installed in Protexulate / DriTherm material. The line is 5150 ft. long to the tie-in point. The steam temperature is measured at both ends of the export line. Typically steam leaves the plant at 340 deg. F and is delivered at 325 deg. F at the University tie-in point. I feel that this small temperature loss is a credit to your product and deserves mention." Morrisson-Knudsen – Charlotte, NC
University of Minnesota
"This summer the University of Minnesota excavated 12 year old buried steam and condensate lines on the St. Paul Campus to make tie-ins. It was observed that the existing steam and condensate lines had virtually no external corrosion. These lines had been insulated with DriTherm pour-in insulation. " University of Minnesota – Minneapolis, MN
Sandia National Laboratories
"The excavated lines were installed about five years earlier using 'DriTherm' as the insulation/corrosion protection system. We were surprised, and delighted, to discover the condition was 'like new", with no surface corrosion on either line." Sandia National Laboratories – Albuquerque, NM