About Us

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Take a Video Tour of ISV in Stafford, Texas: 


International Standard Valve, Inc. is located in Stafford, Texas and produces the ISV brand of ball valves, gate, globe & check valves specifically designed for the oil & gas, oil refining, natural gas, power generation, chemical, petrochemical, pulp & paper and mining industries.

The corporation’s key management team comprises over 60 years of industrial valve manufacturing experience.

ISV’s core competences reside in two key areas of valve manufacturing:
The manufacture of fully code compliant ball valve products and our multi-layered quality assurance program.

ISV offers a variety of valve products designed to be in full compliance with API and ASME piping codes and standards, providing users of ISV valves a wide range of choice in meeting DOT and ASME B31 piping code requirements.

ISV’s quality assurance program is certified to API 6D and ISO 9001 Quality Management Systems and additionally include unique levels of in-house pressure testing of our internationally produced valves at the ISV Stafford facility. ISV also a maintains material certification data base at the component level for extended product reliability.

ISV product overview1

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ISV components

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