Unisert Systems, Inc. was originally incorporated in Canada in 1968 and again in the United States in 1973. Unisert relocated its principal offices from Edmonton, Alberta to Conroe, Texas (40 miles north of Houston, Texas), and has been based there ever since 1978. Our central activity continues to lie in the area of designing, fabricating, and installing multiwall pipeline systems for the oil, gas, chemical, mining, power utility, and the municipal industries. Unisert also engages in pipeline cleaning and the repair of fiberglass pipe, tanks, and vessels.
Since 1968, Unisert has been engineering and building its patented IT3 multiwall pipe systems that negate galvanic corrosion problems and meet double-wall containment requirements for the oil, gas, chemical, mining, power utility, and municipal industries. Unisert’s unique process involves sliding one piping system into another and filling the annular space with a suitable cement-based material to create a multiwall pipe.
Unisert’s techniques can be used for new pipeline systems and to repair or rejuvenate existing pipelines. A wide range of materials is utilized, including metals, plastics, and cement. Unisert offers total service to its customers ranging from design and planning to post-installation analysis. Standard designs and custom technical services are provided.
Unisert has installed the IT3 system in varying climates and terrain throughout the North American continent, from Alaska’s North Slope to the streets of New York City. Operating in all types of fluid streams-oil, gas, water, slurry, and multiphase systems-pressures have ranged from vacuum to 3500 PSI. In addition to numerous plant installed and cross-country pipeline projects, Unisert has completed many environmentally sensitive onshore and offshore projects from the Bahamas to California.
Founder and President of Unisert, has worked in the pipeline industry for over thirty-five years. While serving as District Manager for Magna Chem. Ltd., he began developing the concept of pumping a cement-based grout into the annular space between the existing outer steel pipe and a newly inserted liner as a means of inhibiting corrosion and extending the useful life of pipelines. This in-situ process would have applications in all fluid streams--water, oil, gas, petrochemicals, slurries--especially where higher pressures and temperatures called for using a combination of materials that could outperform liners alone.
Based on his research and development, Mr. Tierling formed Unisert and installed his first pipeline in 1968. Over the years, the need for fabricating a new piping system to replace lines beyond repair became evident. Mr. Tierling met the challenge and designed the IT3 New Piping System featuring the patented SK Collar system for joining and welding line pipe elbows.
Under Mr. Tierling’s direction, Unisert has completed multiple projects both on-and-offshore, from Prudhoe Bay, Alaska to Grand Bahama, Bahama Islands. He has worked with highly corrosive and abrasive fluid streams installing the Unisert IT3 Multiwall Piping System using liner materials suitable to the needs of each project. Mr. Tierling has designed systems to perform under various operating conditions and to feature special characteristics such as using insulating grouts and building in negative buoyancy for offshore installations.
P.E. has been associated with Unisert since 1993 as an engineering consultant, assisting with project specifications, technical evaluations, product improvement, and new product research and development. Mr. Tierling is a chemical engineer with an extensive background in chemical plant operations. He also works with one of the world's foremost engineering consulting firms serving the petrochemical industry.
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