Rexroth’s new HF03 “Light Generation” pneumatic directional control valves

The new HF03-LG valve series from Rexroth has a modular design and can be extended up to 12 valves, one at a time. It is is ideal for applications in which a modular system needs to offer both small dimensions and a high flow rate such as in automation, machine construction, or the automotive industry.

The identical base plate for all valve functions, the plug-in procedure, and integrated plug connections ensure that valve functions can be changed quickly and easily without having to disassemble the valve terminal system first. This keeps each Rexroth HF03 model flexible to accommodate later changes. As Rexroth’s HF03-LG can also be used with other standard valves in the HF03 series within one unit, it is suitable for a wide range of applications.

Designed specifically to be lightweight and space-saving, the Rexroth HF03-LG weighs even less than the HF03 standard version thanks to polymer end plates. Forward-facing pneumatic and electric connections create extra mounting options while keeping installation dimensions compact to suit individual space requirements. The system is also flexible in its electric connections since it uses the proven electronics found in the Rexroth HF04 bus module. Whether multiple plug or field bus, the connection type can be converted at any time without having to disassemble the valve terminal system, which saves time.

Compact and robust, Rexroth’s HF03-LG conforms to IP 65 (NEMA 4) protection class for use in harsh environments. All valve functions (2x3/2, 5/2 and 5/3) as well as vacuum ejectors and pressure regulators are available for the valve terminal system. Separate exhaust connections within the valve terminal system enable double pressure operation with different pressures. The valve terminal system from Rexroth can be mounted directly or onto a DIN rail. Adding further versatility to the line, it is available with either metric or inch air connections.