Hy-Lok USA, Inc. is the American master distributor of Hy-Lok Corporation, a global industry-leading provider of valve and fitting solutions.

With over 40 years of experience on the forefront of instrument valve and fitting technology, Hy-Lok is proud to offer a wide and comprehensive range of high-quality valves and fittings, competitively priced and highly customizable for every specification and requirement for every project.

Hy-Lok Corporation, our parent company, was founded in Korea in 1977. Since then, the company has experienced tremendous growth, earning a reputation as the highest quality instrument valve and fitting company in Asia. The company incorporated in less than a year since its founding. Hy-Lok Corporation was listed on the KOSDAQ Market in 1989.

In the 1990s, Hy-Lok Corporation began expanding its operations internationally. Hy-Lok Europe was established in 1995 in Rotterdam, Netherlands, followed by Hy-Lok USA a few years later. In the 2000s, Hy-Lok began establishing itself all over Asia, including Hy-Lok Asia in 2001, and Hy-Lok China in 2007. In 2008, Hy-Lok also qualified as an official vendor by Exxonmobil Nigeria.

Hy-Lok USA was founded in 1997 in Texas to act as a master distributor to bring the Hy-Lok Corporation product line to North and South America. In June 2001, Hy-Lok USA was purchased by the former management team of Mobile Valve and Fitting Company. Our team, along with its associates, brings together over 100 years of sales and service experience in instrumentation valve and fitting products.

Currently, Hy-Lok is a true global company, with operations on every continent as a leading provider of valve and fitting solutions.

We would like to thank our growing global customer base for voting Hy-Lok as the 3rd ranked preferred supplier of Instrument Fittings in the 2018 Reader’s Choice Awards. We are extremely honored and look forward to continuing to provide our customers with the most reliable fittings on the market. For the full article, please click here!

Hy-Lok USA’s formula for success is the result of offering a comprehensive mix of competitively priced, high quality products backed by outstanding customer service. As an ISO 9001:2015 certified company, we follow a continuous improvement philosophy, constantly revisiting all of our processes to offer you the best valve and fitting solutions every time, for every project.

                                                   Hy-Lok USA Holiday Schedule 

Good Friday Friday, March 29th, 2024
Memorial Day Monday, May 27th, 2024
Independence Day Thursday, July 4th, 2024
Labor Day Monday, September 2nd, 2024
Thanksgiving Day Thursday, November 28th, 2024
Day After Thanksgiving Friday, November 29th, 2024
Christmas Eve Tuesday, December 24th, 2024
Christmas Day Wednesday, December 25th, 2024
New Years Eve Tuesday, December 31st, 2024
New Year's Day Wednesday, January 1st, 2025


If you have any questions about any of our products or services, don’t hesitate to give us a call. For any inquiries, fill out the form and one of our Hy-Lok representative will contact you soon.


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