Skip to content


Stein Seal Industrial is at the forefront of hydrogen seal design, with patented innovations that have transformed the use of hydrogen in industrial applications where the containment and control of hydrogen gas is necessary.  Power generation, oil and gas, chemical processing, power transfer, aerospace, semiconductor manufacturing, and hydrogen fuel cell production are just the beginning of the long list of industries where hydrogen seals come into play.

For Safety, Efficiency, & Performance

Hydrogen seals are designed to prevent the leakage or escape of hydrogen from or within a system or device, ensuring safety, efficiency, and proper functioning. Stein’s engineers accomplish this in multiple ways:


The primary purpose of hydrogen seals is to contain hydrogen gas within a mechanical system. Pressure differentials between the inside and outside of the seal keep the gas in place between the stationary housing and the rotating shaft. This contains the hydrogen within the system.

Leak prevention

Hydrogen seals are designed to prevent leakage of hydrogen gas from one area to another. This is particularly important in systems or devices where the presence of hydrogen in certain locations could be hazardous, such as in fuel cells, hydrogen storage tanks, or pipelines.

Pressure regulation

In some applications, hydrogen seals are utilized to regulate and maintain the desired pressure within a system. By effectively sealing the hydrogen, they help maintain the internal pressure at the desired level, ensuring optimal performance and safety.

Why Choose Hydrogen?

In certain applications, the benefits to using a hydrogen seal are undeniable. Correctly engineered and installed, Stein hydrogen seals can positively impact operations in many areas:


By containing the hydrogen gas, Stein hydrogen seals minimize the potential for fire or explosion that can occur if the gas escapes the system.


By maintaining proper containment, hydrogen seals ensure the efficient utilization of hydrogen, preventing wastage and maximizing performance.

Environmental impact

Hydrogen is a clean, sustainable energy source. Properly sealed systems help prevent hydrogen leaks into the atmosphere, minimizing environmental impact.

Equipment protection

Contact with hydrogen gas can cause certain metals, including steel, iron, and nickel, to become brittle. Hydrogen seals help protect equipment from exposure to hydrogen.

System integrity

Hydrogen seals contribute to the overall stability of hydrogen-based systems. They ensure that the desired operating conditions are maintained, preventing any disruptions that could affect performance.

Why Choose Stein?

Why Choose Stein?

Designing the right seal requires consideration of multiple factors that are unique to each application. Stein engineers look at pressure and temperature conditions, ease of seal maintenance and replacement, and material compatibility, among others, to arrive at the correct solution for every application. The company’s patented Hydrovent® and Hydroload® hydrogen generator seals were developed to solve oil ingress, shaft movement at start-up, and other issues inherent to traditional hydrogen generator sealing systems.

Stein Seal hydrogen seals are  widely used in industries such as oil and gas, petrochemical production, aerospace, and power generation. All of these industries rely on Stein Seal to help them maintain optimal efficiency while safeguarding employees, the environment, and the general public against hazards associated with hydrogen-dependent operations.

For more information on our hydrogen seals, our complete line of seal products, or to discuss your application requirements with our experts, please contact Stein Seal Industries.