Flowserve
Corporate brand
UnclaimedA global provider of pumps, valves, mechanical seals, automation equipment, and aftermarket services for demanding industrial fluid-handling applications.
Last updated August 21, 2026
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Overview
Flowserve Corporation is a United States-based multinational industrial company focused on fluid motion and control. Its portfolio includes engineered and commercial pumps, industrial valves, end-face mechanical seals, actuators, automation systems, and related maintenance and aftermarket services. The company supplies equipment to engineering and construction firms, original-equipment manufacturers, distributors, and industrial end users. The modern Flowserve organization was established in 1997 through the merger of BW/IP, also known as Borg-Warner/IP International, and Durco International. Although the Flowserve name dates from that merger, the businesses brought together under the company have much older industrial lineages. One important predecessor traces its heritage to Simpson & Thompson, established in 1790 and later associated with Worthington Simpson Pumps. This combination of long-established pump and valve businesses gave Flowserve a broad installed base and a portfolio spanning multiple industrial technologies. Flowserve serves industries in which reliable control, movement, isolation, sealing, and treatment of fluids are operationally critical. Its markets include oil and gas production, refining, pipelines, gas processing, power generation, chemical processing, water supply and treatment, desalination, mining, metals, pulp and paper, and other general industrial applications. The company’s products are used in systems handling water, hydrocarbons, corrosive chemicals, slurries, steam, gases, and other challenging media. Applications may involve high pressure, high temperature, abrasive materials, hazardous environments, or requirements for very low leakage. A central feature of Flowserve’s business model is the combination of original equipment with aftermarket support. Services include equipment repair, replacement parts, field assistance, reliability support, maintenance, upgrades, and technical training. The company operates or supports training facilities in several regions, including North America, Europe–Middle East–Africa, Latin America, and Asia-Pacific. These facilities provide classroom instruction and practical equipment training for customers and industry personnel. Flowserve has expanded its capabilities through a long series of mergers, acquisitions, and asset purchases. These transactions added pump technologies, valve products, mechanical seals, maintenance capabilities, desalination and energy-recovery systems, and specialized brands. Notable additions include Ingersoll-Dresser Pumps, Innovative Valve Technologies, the Flow Control division of Invensys, Thompsons Kelly & Lewis, HydroTechnik, MF Sealing Systems, Calder, Valbart, Lawrence Pumps, Innomag, and the SIHI Group. In 2024, the company also acquired MOGAS, a specialist valve manufacturer. The company’s brand architecture includes numerous established product and technology names, including Durco, Worthington, Byron Jackson, SIHI, Valtek, Limitorque, Valbart, Vogt, Worcester Controls, Innomag, and other pump, valve, seal, and automation brands. This breadth allows Flowserve to address both standardized and highly engineered applications. Its positioning is that of a high-value industrial fluid-control partner, combining equipment engineering with lifecycle services rather than competing solely as a catalog equipment supplier. Flowserve is headquartered in Irving, Texas, in the Dallas–Fort Worth metropolitan area, and operates internationally. Reference material describes a workforce of close to 16,000 employees in more than 50 countries. The company remains an active publicly traded industrial manufacturer under the ticker FLS.
History
Flowserve’s corporate history begins with the 1997 merger of BW/IP and Durco International, but the company’s technological heritage reaches much further back. A predecessor associated with Simpson & Thompson was established in 1790 and later became part of the Worthington Simpson Pumps lineage. Over time, related pump, valve, sealing, and automation businesses developed products for power, process, energy, water, and general industrial markets. The 1997 merger created the Flowserve Corporation and provided the foundation for a multi-brand fluid-motion and control company. Rather than relying on a single product family, Flowserve combined established technologies and regional operations. The resulting portfolio covered pumps, valves, mechanical seals, actuators, automation products, and service activities. The Flowserve name consequently became associated with both newly integrated products and legacy industrial brands. Expansion after the merger was driven substantially by acquisitions. In 1997, the company added Stork Engineered Pumps. In 2000, it acquired Ingersoll-Dresser Pumps and Innovative Valve Technologies, the latter providing maintenance, repair, and replacement capabilities for industrial valves, piping systems, and process components. In 2002, Flowserve acquired the Flow Control division of Invensys, adding valves, actuators, and related flow-control products. Thompsons Kelly & Lewis followed in 2004, expanding the company’s centrifugal-pump presence in Australia. The company continued to build its sealing and specialized equipment activities. It acquired Interseal assets in 2005, HydroTechnik in 2006, MF Sealing Systems in 2007, and Calder in 2009. Calder brought expertise in desalination and energy-recovery systems. In 2010, Flowserve acquired Valbart, an Italian valve manufacturer. Lawrence Pumps was acquired in 2011, while a manufacturing plant from L&T Valves in Maraimalainagar, Tamil Nadu, was acquired in 2013. The company also added Audco India assets and Innomag Sealless Pumps in 2013. In 2015, Flowserve acquired the SIHI Group, strengthening its range of pump and fluid-handling technologies. The company has maintained a portfolio containing dozens of product and technology names, including Durco, Worthington, Byron Jackson, Valtek, Limitorque, Valbart, Vogt, Worcester Controls, Innomag, SIHI, and other regional or specialized brands. This multi-brand structure reflects the fragmented and application-specific nature of industrial fluid-control markets. Flowserve’s operations extend beyond equipment manufacturing. The company sells through direct relationships and channels serving engineering and construction contractors, original-equipment manufacturers, distributors, and end users. Its aftermarket activities support the installed base through replacement parts, repairs, upgrades, field service, maintenance, and reliability programs. Training centers in Irving, Etten-Leur, Rio de Janeiro, and Singapore, together with regional satellite locations, support customer education and practical instruction. The company serves oil and gas, power generation, chemical processing, water resources, mining, primary metals, pulp and paper, and other industries. Its equipment is used in production, refining, pipelines, gas processing, nuclear and conventional power, renewable water energy, desalination, wastewater, irrigation, slurry handling, pharmaceutical production, polymers, and waste processing. In 2024, Flowserve acquired MOGAS, adding another specialized valve business. Flowserve remains headquartered in Irving, Texas, operates in more than 50 countries, and is publicly traded on the New York Stock Exchange under the symbol FLS.
- 2024
MOGAS is acquired
[1]Flowserve adds a specialized valve manufacturer to its industrial flow-control business.
- 2015
SIHI Group is acquired
[1]The acquisition strengthens Flowserve’s pump and fluid-handling portfolio.
- 2013
Indian manufacturing and sealless-pump capabilities expand
[1]Flowserve acquires a manufacturing plant from L&T Valves in Tamil Nadu and adds Audco India assets and Innomag Sealless Pumps.
- 2011
Lawrence Pumps is acquired
[1]Flowserve expands its centrifugal-pump business with the acquisition of Lawrence Pumps.
- 2010
Valbart is acquired
[1]The Italian valve manufacturer becomes part of Flowserve’s specialized valve activities.
- 2009
Calder is acquired
[1]Flowserve enters additional desalination and energy-recovery applications through the acquisition of Calder.
- 2006
HydroTechnik is acquired
[1]Flowserve adds a Czech mechanical-seal manufacturer.
- 2002
Flow Control division of Invensys is acquired
[1]The transaction broadens Flowserve’s valve, actuator, and flow-control portfolio.
- 2000
Pump and valve service capabilities expand
[1]Flowserve adds Ingersoll-Dresser Pumps and Innovative Valve Technologies.
- 1997
Flowserve is formed
[1]BW/IP and Durco International merge, creating Flowserve Corporation and establishing the Flowserve brand.
Products and positioning
A high-value industrial fluid-motion and control solutions provider serving critical-process applications through engineered equipment, established product brands, automation, and lifecycle services.
Pumps
Industrial pumps
Flowserve supplies centrifugal, process, engineered, sealless, and other industrial pump technologies. These products are configured for applications such as oil and gas, power generation, chemical processing, water treatment, mining, and general industry. The portfolio includes legacy and acquired technologies marketed under names such as Worthington, Byron Jackson, Durco, Lawrence Pumps, Innomag, SIHI, and other specialist brands.
Valves
Industrial valves
The valve portfolio covers control, isolation, process, severe-service, and specialized industrial applications. Flowserve’s valve activities include products associated with Valbart, Valtek, Vogt, Worcester Controls, Durco, and other brands. These systems are used to regulate, isolate, or redirect fluids in energy, chemical, water, and industrial facilities.
Sealing
Mechanical seals
Flowserve provides end-face mechanical seals and related sealing systems designed to limit leakage around rotating equipment. The offering incorporates technologies and businesses associated with Durametallic, Pac-Seal, BW Seals, HydroTechnik, Interseal, and other product names. Applications include pumps and process equipment handling corrosive, hazardous, high-temperature, or otherwise demanding fluids.
Automation
Automation and actuators
The automation portfolio includes valve actuators, control technologies, and associated instrumentation used to operate and monitor fluid-control equipment. Limitorque, Logix, PMV, Automax, and related brands form part of the broader automation and actuation heritage. These products support process control, remote operation, safety, and equipment integration.
Services
Aftermarket and educational services
Flowserve supports customers after installation through replacement parts, repairs, maintenance, field service, upgrades, and reliability assistance. It also operates regional training infrastructure, including major centers in the United States, the Netherlands, Brazil, and Singapore, as well as satellite locations. Training can include practical instruction using complete pumping systems and customer-specific course development.
Marketing campaigns
- 2005Hurricane Katrina disaster-relief support
United States
Flowserve donated $50,000 to Hurricane Katrina relief and matched employee donations to the American Red Cross up to an additional $50,000.
Outcome. Corporate and employee contributions supported disaster-relief efforts.
Brand decisions
2024
Acquire MOGASM&ABackground
Flowserve pursued additional specialized valve capabilities for demanding industrial applications.
Action taken
Flowserve acquired MOGAS, a specialized valve manufacturer.
Aftermath
The transaction expanded Flowserve’s valve portfolio and industrial application coverage.
2015
Acquire SIHI GroupM&ABackground
Flowserve continued its acquisition-led expansion in pumps and fluid-handling equipment.
Action taken
The company acquired SIHI Group.
Aftermath
SIHI technologies became part of Flowserve’s international pump portfolio.
1997
Merge BW/IP and Durco InternationalM&ABackground
The two fluid-motion and control businesses were combined to create a broader industrial equipment platform.
Action taken
The merged company adopted the Flowserve name.
Aftermath
The merger formed the modern Flowserve Corporation and established its multi-brand pump, valve, sealing, and automation structure.
Recent events
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