DVG Family of Open-Center Hydraulic Valves for Mobile Machinery
Danfoss' DVG family of hydraulic valves is a new line of open-center directional control valves for mobile machinery.
Currently available in North, Central, and South America, the valve group brings a new level of quality and performance as well as rapid and reliable delivery to a competitive market. DVG 60 and DVG 100 valves are ideal for a variety of construction, material handling, and agriculture machinery, including skid steer loaders, compact track loaders, backhoe loaders, truck-mounted cranes, and tractors.
Danfoss DVG valves offer several class-leading performance attributes, including return flow rate, pressure drop, and active spool stroke resolution. DVG valves are designed with meter-out flow 75% higher than meter-in flow at 15 bar pressure drop. This enables fast cylinder retraction to meet desired cycle times, eliminating the need for complex or oversized systems.
Pressure drop from the valve inlet to the work port is 33% lower in a DVG 60 valve and 7% lower in a DVG 100 valve compared to the next best alternative. This pressure drop reduces power losses and heat generation, reducing fuel consumption and cooling needs while optimizing the energy efficiency of the machine.
With 4.2 mm of active spool stroke resolution on proportional electrohydraulic controls, DVG 60 and DVG 100 valves provide better application controllability.
The modular build concept is a key feature of the DVG valve family. A common interface for the DVG 60 and DVG 100 valves enables flexible configuration to meet each machine’s precise requirements. A maximum of 12 work sections can be combined in one valve, enabling use on machines with a range of functionality.
DVG valves are available with proportional actuators, which can be programmed with Danfoss PLUS+1 software. Preprogrammed compliance blocks for the actuators reduce time to market while improving ease of use for customers transitioning from mechanical to electrical control.
DVG 60 has a workport flow rate of 60 L/min (15.8 gal/min), while DVG 100 has a flow rate of 100 L/min (26.4 gal/min). The work port continuous pressure rating of both sizes is 310 bar (4,500 psi).
DVG valves are available with a variety of actuation methods, spools, and features, offering flexible valve configuration. Circuit options include series, parallel, and tandem. Control types include electronic (proportional and on/off), mechanical, cable, hydraulic, electro-pneumatic, and pneumatic. The large range of spools includes three-way, four-way, float, regen, and kick-out. Each is offered in different variants, ensuring the DVG valve can be used in many applications.
Features:
- Return flow optimized for fast cylinder retraction
- Bypass pressure drop and work port leakage
- Common interface enabling flexible configuration
- Rapid delivery and an expansive distribution network
- Outstanding electrohydraulic performance
Danfoss Power Solutions
Ames, Iowa
(515) 239-6000
www.danfoss.com
