CIRCOR is a leading manufacturer to the chemical, petrochemical or industrial "inside-the-fence" industries. Chemical process and petrochemical plants around the world have specified CIRCOR ball, gate, and check valves for process management and control applications. Whether off the shelf standard or highly specialized custom valves, CIRCOR offers branded products to supply your toughest requirements. CIRCOR brands that are prominent in the chemical/petrochemical business are Hoke, GO Regulators, KF Contromatics, Nicholson Steam Trap, Spence Engineering and SSI Equipment, Inc.