Feb 24, 2025

A New Pneumatic High-Pressure Hydrogen Valve - Meet the D655

Following the successful launch of the D615, Rotarex has expanded its hydrogen solutions portfolio with the addition of the D655, a high-pressure bundle valve. This new hydrogen valve maintains the same tightness and high-pressure capabilities as the D615, with a key difference: actuation. Unlike the manually operated D615, the D655 features pneumatic actuation, enabling remote control functionality for greater operational flexibility.

Safe and Reliable Hydrogen Valve

The D655 bundle valve is an ideal solution for tube trailers and Multiple Element Gas Containers (MEGCs) used to transport large volumes of gas. Designed for high-pressure applications up to 500 bar, the D655 series can handle extreme conditions, operating reliably in temperatures as low as -20°C.

To address the unique challenges of hydrogen, known for its small molecule size, the D655 ensures tightness of <10⁻³ mbar.l/sec, making it a safe choice for handling this explosive gas. A securely retained soft seat prevents extrusion, providing excellent sealing performance.

The lower spindle design, combined with the compensation feature, ensures smooth torque operation. Additionally, the valve’s design prevents particle shedding in the gas-wetted cavity, ensuring contamination-free operation.

Uncompromising Quality Standards

As always, Rotarex prioritizes quality and safety. This high pressure valve is homologated in compliance with ISO 10297 (2024) and CGA V-9 standards, ensuring it meets the highest industry requirements for hydrogen applications.

Customizable to Meet Your Needs

The D655 series offers two options for pneumatic head fixation: two-point and four-point configurations. An optional check valve is available to prevent backflow, enhancing safety and functionality. Furthermore, the D655 series can be designed in normally open or normally closed configurations, allowing it to adapt to specific installation requirements.

With its robust design, exceptional performance, and customizable features, the D655 is a reliable solution for high-pressure hydrogen applications.

Explore the full range of Rotarex hydrogen solutions, including high-pressure valves, bellows valves, and fittings for HP and UHP gases on our dedicated page : https://rotarex.com/category/hydrogen-solutions

Back to all Press Releases

Connect with an Expert