International Standard Valve, Inc.

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 quality assurance program is certified to API 6D, API Q1 and ISO 9001-2008 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.

Company details

10749 Cash Road , Stafford , Texas 77477 USA

Locations Served

Business Type:
Industry Type:
Water and Wastewater
Market Focus:
Internationally (various countries)

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.

All ISV products are manufactured under ISO 9001 Quality Management Systems.

  • International Standard Valve’s ISO 9001:2008 Quality Management System has been certified by DNV.
  • Certificate download: ISV – ISO9001_93219cert
  • Each valve is performance tested in accordance with applicable industry standards such as API 6D, API 598 or MSS SP-110.
  • Material receiving inspections are conducted and include levels of visual inspections to MSS SP-55, pressure testing, PMI or other non destructive examinations.
  • Quality system certifications and quality manuals are available for each manufacturing partner location upon specific request.

Processes are stringently monitored to assure that each product meets or exceed industry standards including as applicable:

  • API
  • ASME
  • ASTM
  • ISO
  • CSA
  • PED
  • NACE

Engineering & Design

ISV valves are designed utilizing the latest engineering technologies enabling fast precise solutions to demanding valve applications. Product engineering/design packages are prepared in-house.

Final Assembly & Testing

All ISV ball valves are manufactured in strict accordance with industry standards and ISV Product Design Specifications whether produced domestically or internationally. Final assembly & testing of selected ISV products is performed in-house by well trained qualified personnel in a safe & ecologically responsible environment.

Year 2012 USA production capacity exceeds 1700 pieces per month.

Quality Control

ISV’s Quality management System is maintained at all levels of production in accordance with ISO 9001 and API Q1.

Each valve is serialized.

Material test reports including chemical and mechanical material characteristics and pressure test results are available with each valve.

Each ISV valve undergoes pressure testing to applicable standards.

Each valve carries full ISV warranty and warranty services.