Providing Quality Equipment, Every Time. At Pipeline Equipment, Inc. (PEI) this is more than just a slogan; it’s our founding principle. After more than 25 years in the Oil & Gas Industry, our founder set out to build a company with integrity and a dedication to quality and customer service. From its 100-acre campus in Tulsa, Oklahoma that includes over 200,000 square feet of production and warehouse space, PEI manufactures launcher and receiver barrels and systems including automated systems for pigs and spheres, mainline valve assemblies, liquid and gas measurement equipment, pressure-control and flow-control skids and station buildings. PEI also provides the patented TWINLOCK Quick-Opening Closure, extruded headers, reinforcing weld saddles, full-encirclement saddles, and drum drilling. The Coating Division sprays single, multiple and plural component coatings and blasts with a variety of mediums. PEI is an ASME facility with offices in Tulsa and Houston and representatives throughout the United States.