John Crane is a global manufacturer of mechanical seals, seal support systems, power transmission couplings, and filtration solutions for rotating equipment, founded in 1917 as the Crane Packing Company and headquartered in Slough, UK. Part of Smiths Group plc, John Crane serves the oil and gas, chemical, power generation, and wider process industries through more than 200 facilities in over 50 countries, and is widely regarded as a pioneer of end-face mechanical seal and dry gas seal technology.
Non-contacting, gas-lubricated compressor seals using John Crane's patented spiral groove technology, an industry standard for centrifugal compressors and turbomachinery, with the 28EXP rated for pressures up to 425 bar(g).
Non-contacting dual cartridge seals for pumps and small- and large-bore rotating equipment, designed for zero fugitive emissions when handling volatile fluids.
Proven elastomer bellows shaft seals; the Type 1 is known as an industrial workhorse and the Type 21 is a widely used standard among pump OEMs.
A modular cartridge seal family, including metal bellows variants such as the Type 5615, built to fit a broad range of pumps.
Disc, diaphragm, rigid, and elastomeric power transmission couplings for pumps, compressors, and turbomachinery.
Magnetic face bearing protection that seals out contaminants and retains lubricant in rotating equipment.
Dry gas seals, separation seals, and secondary containment seals for turbo compressors, screw compressors, and steam turbines.
Single, dual, cartridge, component, and metal bellows mechanical seals for process, pipeline, slurry, and API 610 pumps.
Mechanical seals for reactors, mixers, and agitators in chemical, pharmaceutical, and polymer processing.
API 682 and API 692-compliant gas seal and pump seal support systems, including gas conditioning units and barrier fluid systems.
Micromachined face patterns and treatments that improve lubrication under low-lubricity, dry-running, and severe-service conditions.
Disc, diaphragm, elastomeric, rigid, and high-performance turbomachinery couplings.
Compression, automatic, floating, and injectable packing materials for pump and valve leakage control.
Gas, liquid, and polymer filtration systems, including fuel gas filtration for turbines and process gas protection.
Sealing and filtration technologies for hydrogen, carbon capture, utilization and storage (CCUS), and greenhouse gas emissions reduction.
Remote condition monitoring of rotating equipment using near real-time data and analytics.
Seal reliability management, maintenance and repair, upgrades and retrofits, reliability engineering, and technical training.
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