Since 1976 AP/M has helped cities, engineers and contractors select the best tool for each different manhole problem with its PERMACAST® system of structural cement liners, coatings, structural polymers, cured-in-place liners, chimney seals, channel liners, and more! In 1996, it introduced its ConmicShield® additive for long term, internal corrosion protection of concrete. Since it is added during mixing, it is not a surface treatment that can wear off or delaminate! Now CentriPipe® is available for trenchless, structural lining of large diameter culverts and sanitary pipe. All technologies, equipment and materials are offered exclusively through its network of contractors and cities throughout the World.
Manufacturer of differential pressure gauges, indicating switches and transmitters used in monitoring filter conditions, tank level measurement, flow indication. Manufacturer of Backflow Prevention Assembly Field Test Kits.
Petersen is unique in having equipment for both mechanical and inflatable product development and production. Capabilities include manual and CNC metal working machinery, pipe plugs and stoppers, material tensile testing, CNC woven and non-woven pattern cutting, sewing single and multiple...
CentriPipe® Pipe Lining System-- provides a cost-effective, NO DIG solution for structural lining of culverts using its patented bi-directional spincaster to centrifugally compact a precision liner at the best design thickness for the size, shape and conditions of deteriorated pipe. It inhibits... Read more
PERMACAST® Structural Liners are made of specially formulated fiber reinforced cements engineered for underground sewer structures. Design specifications aid in the selection of the best material for each particular problem. Our systems are installed by our factory trained and certified network... Read more