ProductsValtek Mark One

Valtek Mark One Control Valves are heavy-duty globe-style control valves manufactured by Flowserve Corporation under the Valtek product family. Designed for precise regulation of liquids, gases, steam, and other process media, they feature a rugged construction and interchangeable trim options, delivering high control accuracy, reliable performance, and long service life in demanding industrial applications. Commonly used in industries such as oil & gas, petrochemical, chemical processing, power generation, LNG, water and wastewater treatment, pulp & paper, and industrial manufacturing, Valtek Mark One control valves support process optimization, operational reliability, energy efficiency, and enhanced process safety by providing accurate modulation of critical process variables and seamless integration with pneumatic or electric actuators, digital positioners, and PLC, DCS, and SCADA systems.