Established in 1917, John Crane Inc. is one of the leading companies in the United States, manufacturing engineered sealing systems. A part of Smiths Group, a global technology business, the company designs and manufactures seals and associated products mainly for the oil and gas, chemical, pharmaceutical, pulp and paper and mining sectors. It provides a range of engineered mechanical seals, sealing support systems and mechanical packing. The company manufactures products, which include mechanical seals, packing, power transmission couplings, seal support systems, bearing isolators and filtration systems. John Crane Inc. is an ISO 14001:2004 certified company.