The Circor products serving the Marine Industry include the Circle Seal Control, Leslie Controls, Industria and Nicholson Steam Trap high performance fluid control products and design and support services. These products lines meet the rigorous demands and robust reliability required to handle the severe operating conditions and maintainability requirements found on both commercial and military Marine programs.

Circle Seal Control and Leslie Controls are specialists in the designing, manufacture, assembling and testing of extremely high quality products developed to perform in extreme environments as they relate to temperature, vibration, accuracy, pressure and reliability. All of these requirements are met while keeping a watchful eye on producing the lightest, smallest package capable of meeting the customer's operational requirements. These companies are certified to ISO 9001, MIL-I-45208 and MIL-Q-9858, as well as many customer required quality specifications.

Circor products within the Marine industry are found in every fluid service found aboard modern aircraft, including: Fuel, Potable and Waste water, Hydraulics, Steam Services, Engine Bleed Air and Environmental Control Systems.

Circor products for Marine applications cover the entire range of fluid control service: Motor Operated Valves, Mechanical and Electrical regulators, Check and Relief Valves, Solenoid Valves, Steam Control and Regulation, Pressure Gauges and Manifold Systems and sub-Systems.