John Crane founded in 1917, headquartered in Chicago, Illinois, a part of Smiths Group plc. John Crane is a leading manufacturer of Mechanical Seals, Coupling, Filter System, etc. John Crane is a global leader in the design, manufacture and engineering of mission critical flow control solutions for increased efficiency, emission reductions and energy transformation. John Crane has extensive experience in rotating equipment solutions, providing engineering and services to the process industry, including: Oil and Gas, Power Generation, Chemical, Pharmaceutical, Polymers, Mining and Minerals, Food and Beverage, Pulp and Paper Processing, Refrigeration, Compression, Wastewater and Clean Water Management.