CIRCOR Energy is a market-leading, global provider of integrated flow control solutions specializing in the manufacture of highly engineered valves, fittings, pipeline products and services and associated products, for critical and severe service applications in the oil and gas, power generation and process markets. CIRCOR Energy. Excellence In Flow Control. Worldwide.Ball Valves, Severe Service Control Valves, General Service Control Valves, Pipeline Pigging Products, Gate, Globe & Check Valves, Regulators, and Safety Relief Valves