Add-on Valves for H1 Motors

Taking H1 Motors to even more applications

Danfoss is pleased to offer a variety of add-on valves for our family of H1B bent-axis motors, expanding the motor’s application to open-circuit systems. 

Our CBVs (counterbalance valves) enhance system performance by improving system efficiency, and features reduced pressure drop, integrated pressure relief valves, simplifying system integration and reducing time-to-market.  Choose DN25A for 80 and 110cc H1B, DN32A for the 160cc, or DN32B for 210 and 250cc.

The new FHPRV (full-flow high pressure relief valve) is a bolt-on valve that provides overpressure protection in high-power applications.

Counterbalance Valves:

1. H1B + CBV: aligned designs and proven technology to generate the perfect match – with quick and easy installation
2. Longer spool stroke, resulting in higher performance and smoother reaction
3. Highly flexible and configurable due to the variety of spool and damping characteristics – this means precise and repeatable control – and optimized productivity
4. Integrated brake release for the external brake and anti-cavitation valve – modularity enabling fast adaption and customization when needed
5. Reduced pressure drop rates gives your machine increased efficiency and improved energy efficiency

FHPRV:

1. Provides high-flow pressure relief at the motor - critical for motor protection in demanding applications
2. Prevents damage to the motor and pump during extended overpressure situations
3. Full-flow relief functionality without a significant increase in motor size or circuit complexity
4. Can be used in either closed-circuit or open-circuit applications

Our valves are ideal for a wide variety of systems:

• Wheeled and crawler excavators
• Crawler and truck cranes
• Drilling and pipe-handling applications
• Rotating attachments (e.g. rotary tiller)