CIRCOR Aerospace
Aerodyne Controls, Inc.Circle Seal Controls, Inc.
Circle Seal Controls

Products & Services

Circle Seal Controls offers a wide choice of valves and controls for applications including OEM, medical, chemical, petrochemical, energy, and food & beverage. Products range from discrete components to integrated assemblies to complete fluid control systems.

Fluid Controls
For Industrial Fluid Control Solutions


The Circle Seal Controls brand has a rich legacy, dating back to 1947. The first innovative check valve using a floating O-ring to provide a dead-tight seal was developed, which lead to a zero-leak check valve for fuel systems. CIRCOR Aerospace integrated the Circle Seal Controls heritage brand in 2008, and continues to offer the aerospace industry the widest choice of valves and controls.

ISO 9001:2000 certified • AS9100B:2004 certified • FAA Repair Station Certificate #QWCR710X
FAA/PMA Parts Manufacturing Approval • Hundreds of major aerospace company approvals


Circle Seal Controls
2301 Wardlow Circle
Corona, CA
Tel: +1 (951) 270-6200
Fax: +1 (951) 270-6201

For product questions:
For company structure and parent company questions:

Download (pdf) Circle Seal Controls company info sheet
Download (pdf) Circle Seal Controls product sheets

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