About Us

OUR STORY 1978 by visionary technocrats in Ontario, California

Running a
successful business
since 1978

R-K Industries was founded in 1978 by visionary technocrats in Ontario, California, where we’ve proudly remained ever since. From the outset, our mission was clear: to push the boundaries of scientific innovation by developing high-precision thermoplastic valves—and we did just that. Our early breakthroughs led to patented valve designs that set new industry standards and laid the foundation for our future growth.

Initially serving the scientific research sector, we quickly earned a reputation for engineering excellence. But it wasn’t long before we identified a critical industry need—thermoplastic valves capable of handling interactive and highly corrosive fluids. At the time, quality solutions in this space were scarce. Rising to the challenge, our team combined deep technical expertise with relentless innovation to develop a line of advanced, corrosion-resistant valves tailored for harsh chemical environments.

Our patented products and customer-driven approach sparked rapid expansion, allowing us to serve an increasingly diverse clientele across multiple industries. Today, R-K Industries continues to lead with a growing portfolio of specialized valve solutions—engineered to perform, built to last, and trusted by professionals worldwide.

A key part of our success lies in our strong partnerships with industry-leading distributors, who share our commitment to reliability, technical support, and customer satisfaction. Through these valued alliances, we ensure that R-K products are available where and when they’re needed—backed by knowledgeable partners who understand the critical nature of fluid control solutions.

Why Partner with RK Valve

20+ patented products

Uncompromising Quality – rigorously tested.

Decades of Expertise – 40+ years of innovation

Global Reach – Serving 40+ countries

Customer-Centric Approach – Custom valve solutions

Mission Statement

At R-K Industries, our mission is to design and deliver high-performance thermoplastic valve solutions that meet the toughest industrial challenges. We are committed to engineering excellence, product reliability, and customer-focused innovation—providing corrosion-resistant valves tailored to the precise needs of each application. Through rigorous quality control, patented technologies, and responsive service, we empower industries to operate safely, efficiently, and with complete confidence.

Vision Statement

To be the global leader in sustainable thermoplastic valve solutions—pioneering innovation, precision, and durability for industries handling corrosive and critical fluids. We envision a future where advanced materials, intelligent engineering, and eco-conscious design come together to create safer, more efficient, and resilient fluid control systems worldwide.