CIRCOR International, Inc. designs, manufactures, and markets engineered products and sub-systems for oil and gas, aerospace, power and process, and industrial solutions markets worldwide. It operates through two segments, Energy and Advanced Flow Solutions. The Energy segment offers a range of flow control solutions and services, including valves, such as engineered trunion and floating ball valves; gate, globe, and check valves; and butterfly valves, as well as delayed coking unheading devices and fluid catalytic converter valves. It also provides instrumentation fittings and sampling systems comprising sight glasses and gauge valves; liquid level controllers, liquid level switches, plugs and probes pressure controllers, and pressure regulators; and pipeline pigs, quick opening closures, and pig signalers. This segment offers its products and services to end-user customers, such as oil companies, as well as engineering, procurement, and construction companies through direct sales, sales representatives, distributors, and agents. The Advanced Flow Solutions segment manufactures and markets control valves, automatic recirculation valves, regulators, fluid controls, actuation systems, landing gear components, pneumatic controls, electro-mechanical controls, and other flow control products and systems. Its products and services are used by various customers in the military and defense, commercial aerospace, business and general aviation, process industries, and power generation markets. This segment serves aircraft manufacturers and tier 1 suppliers to aircraft manufacturers, power companies and their contractors, and other industrial customers. CIRCOR International, Inc. was founded in 1999 and is headquartered in Burlington, Massachusetts.