John Crane Inc., is the acknowledged technology leader and the world's largest manufacturer of Mechanical Seals and associated products.
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Industries
 

 Chemical  
    
 The chemical processing industry's focus on emissions reduction and reliability are well served by our market-leading portfolio of high performance, low emission selaing products, which provide significant improvement in equipment life and environmental control. 
 

 
 Food & Beverage  
    
 John Crane's proprietary materials and clean-in-place designs are used throughout the food processing, bottling, brewing, and distilling industries. 
 

 
 Mining & Minerals  
    
 Our family of slurry seals are designed to provide maximum reliability even in the harshest, abrasive slurry environments. 
 

 
 Oil & Gas  
    
 Oil refineries, pipelines, and gas plants choose John Crane for their most arduous applications. Equipment reliability is a key driver of financial performance, and John Crane product innovations provide the foundation for significant improvement in Mean Time Between Repair (MTBR). 
 

 
 Pharmaceutical  
    
 John Crane pump and specialty mixer seals provide pharmaceutical manufacturers with high performance, clean-in-place solutions for their critical applications. 
 

 
 Power Generation  
    
 Whether it's a nuclear, fossil fuel or hydro plant, John Crane's sealing products ensure uninterrupted, reliable performance on boiler feed water, slurry, and flue gas desulphurization services. 
 

 
 Pulp & Paper  
    
 John Crane addresses papermaking problems with proven solutions that service the industry's unique variety of equipment. Our designs are ideally suited to reduce water consumption and environmental pollution. 
 

 
 Refrigeration Compression  
    
 John Crane pioneered the development of metal bellows seals for refrigeration compressors to meet the demands imposed by new refrigerants and strict leakage controls on ozone-depleting gases. Today, our seals are fitted on the majority of new compressors manufactured.  
 

 
 Water Systems  
    
 Since the early introduction of elastomer bellows mechanical seals, John Crane has been the leading supplier to manufacturers building pumps for residential, commercial, industrial, and agricultural water systems. As these applications become more demanding we continue to innovate with more robust designs and improved materials to meet the need for higher pressures, corrosion, and abrasion.