In midstream applications, Norplex-Micarta materials are used to insulate the pipeline from the support structure, both of which are typically made of steel.
These supports perform two functions. First, they prevent temperature migration between the pipeline and support structure, which allows for efficient temperature control of the material being transported. Second, they provide both mechanical and shear strength to support the weight of the pipeline and protect the support structure against movement caused by expansion or contraction of the metal.
With specially formulated materials, Norplex-Micarta supports low-temperature industries with our LNG, cryogenic, and pipeline insulation materials. The most important of these is NP500CR which is preferred when the needs for superior thermal insulation and structural support converge with cryogenic temperatures. Because of its low moisture absorption, NP500CR performs at specific temperatures, and also when repeatedly cycling between low and high temperatures— properties not available with densified wood products, foam, thermoplastic or other alternatives. NP500CR is widely used in the LNG industry for pipe and storage applications (both stationary, over-the-road tanks, and shipboard bunkering) as well as insulator blocks for ladders, walkways and scaffolding where dangerous icing can occur. Furthermore, this material is used in engine rooms of LNG-powered ships.
Gaskets isolate one section of a pipeline from another, protecting them from cathodic corrosion, which is caused when two pieces of metal contact each other. For high and low-temperature applications, a disk of Norplex-Micarta composite material is placed between the two flanges of connecting pipeline sections, separating the metal when sections are bolted together. Norplex-Micarta gasket material is also used in high-temperature steam applications. Utilizing a unique processing technique that combines glass cloth reinforcements and epoxy, the resulting thermoset composite has a tight molecular structure that functions well in acidic
and high-temperature environments. The tough, non-brittle material has a Tg of 210°C and provides excellent mechanical strength, while maintaining inherent
dielectrically insulating values. Tubing material and composite washers are also used to completely insulate flange connecting bolts.
