Leslie Controls

Leslie Controls is a United States-based industrial brand specializing in control valves, steam conditioning equipment, and related flow-control products. The company traces its origins to the early 20th century and built a reputation in the steam and process industries for reliable valves used in power generation, oil and gas, chemical processing, and marine applications. Its product range includes pressure-reducing valves, temperature regulators, steam conditioning valves, desuperheaters, and specialized control valves for demanding service conditions. Over the decades, Leslie Controls expanded from its original steam specialties business into broader industrial flow control, serving customers worldwide through direct sales and a network of representatives and distributors. The brand became known for engineering-heavy solutions tailored to high-pressure, high-temperature, and critical-service environments. Today, Leslie Controls operates as a brand within CIRCOR International, a publicly traded industrial company listed on the New York Stock Exchange under the ticker CIR. CIRCOR acquired Leslie Controls to strengthen its portfolio in industrial valves and steam solutions. Under CIRCOR, Leslie Controls continues to supply control valves and steam conditioning products to global markets, leveraging CIRCOR's manufacturing and distribution footprint. The brand's headquarters and primary operations are associated with Tampa, Florida, where CIRCOR maintains a significant presence for its industrial valve businesses. Leslie Controls products are used in applications ranging from power plants and refineries to HVAC and marine systems, where precise control of steam and other fluids is essential.

Leslie Controls originated in the United States in the early 20th century as a manufacturer of steam specialties and control valves. The company was founded by the Leslie family and initially focused on pressure and temperature regulators for steam systems, products that were widely adopted in industrial heating and process applications. Over the following decades, Leslie expanded its product line to include control valves, steam conditioning valves, and desuperheaters, serving power plants, refineries, chemical plants, and marine vessels. The brand developed a strong reputation for rugged, reliable valves capable of handling high-pressure and high-temperature steam. Leslie Controls grew through direct sales and a network of representatives, establishing a presence in international markets. Its products became common in both new construction and retrofit projects where precise steam control was required. In the late 20th and early 21st centuries, consolidation in the industrial valve sector led Leslie Controls to become part of larger organizations. CIRCOR International, a diversified industrial company, acquired Leslie Controls, integrating it into its industrial valve portfolio. Under CIRCOR, the Leslie brand continued to be marketed for control valve and steam conditioning applications, benefiting from CIRCOR's global manufacturing and distribution capabilities. CIRCOR itself has undergone changes in ownership and structure, including a period as a publicly traded company on the New York Stock Exchange. Leslie Controls remains an active brand within CIRCOR's industrial solutions segment, with operations associated with Tampa, Florida. The brand continues to serve customers in power generation, oil and gas, chemical processing, and other industries requiring dependable flow control.

• Founded in the United States as a steam specialties manufacturer.

• Expanded into control valves and steam conditioning equipment.

• Acquired by CIRCOR International and integrated into its industrial valve portfolio.

Engineering-focused industrial control valve and steam specialty brand for critical service applications.

• Control valves

• Steam conditioning valves

• Pressure-reducing valves

• Temperature regulators

• Desuperheaters

1. 1Leslie Controls official websitelesliecontrols.com