John Crane designs and manufactures seals and associated products for the chemical, pharmaceuticals, mining, pulp and paper, and oil and gas sectors. The company offers power transmission couplings, bearing isolators and sealing support systems. It maintains more than 15 manufacturing sites. John Crane provides products under the Sealol, Safematic, Flexibox, Metastream, Powerstream, Lemco and Performance Plus brands. The company offers flexible graphite gaskets, emission packing sets and packing rings. It provides repair and asset management services. In addition, the company offers power transmission couplings, bushes and shims. It provides gas panels, heat exchangers and separators. John Crane is a part of Smiths Group.