Counterbalance valve for bent-axis motor
Global supplier of mobile and industrial hydraulics and electric powertrain systems Danfoss Power Solutions has introduced a counterbalance valve for its H1B bent-axis motor, expanding the motor’s application to open-circuit systems. Specifically designed for the motor, the counterbalance valve is said to enable original-equipment manufacturers to harness the benefits of the variable-speed H1B motor, including compact design and efficiency in high-power drivetrain and winching applications, while preventing overspeed and cavitation.
Danfoss asserts that, in comparison to competitive offerings, the counterbalance valve for H1B reduces pressure drop, which improves system efficiency, and features integrated pressure relief valves, simplifying system integration and reducing time to market. The valve also offers a range of options to optimise performance through damping and overall behavior of the main spool, as well as an optional charge port for external charging or system heat-up.
Danfoss H1B motors with counterbalance valve are specifically suited for wheeled and crawler excavators, crawler and truck cranes, and drilling and pipe handling applications. The DN32 counterbalance valve, available in two versions, fits H1B motors with displacements ranging from 160 cc to 250 cc. A DN25 valve which will fit H1B motors with displacements ranging from 80 cc to 110 cc, is to be introduced in 2023.
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