Danfoss Power Solutions extends PVG portfolio with high-flow proportional valves

Thursday, March 22, 2018

Improve time to market

The modular concept used in PVG 128 and PVG 256 simplifies the design process, improving time to market for OEM customers.

Danfoss Power Solutions has added two high-flow proportional valves to its PVG portfolio. These are PVG 128 and PVG 256, expanding its range of low to high-flow capabilities for OEM customers with demanding applications. The valves are designed to easily integrate with the existing line of Danfoss high performance proportional valves. These are PVG 16 and PVG 32, allowing modularity from low to high hydraulic flow within the same valve stack.

The addition of the high-flow valves extends the range of hydraulic flow. This is within the PVG series up to 300 liters (79 gallons) per minute with the PVG 128. Up to 400 liters (105 gallons) per minute with the PVG 256. A special turbo version of the PVG 256 valve is also available. This increases the hydraulic flow up to 500 liters (132 gallons) per minute.

The high-flow valves are ideal for use on demanding applications. Such as large mobile/truck mounted cranes, crawler cranes, ship cranes, winches, drilling machines, etc. where flow and durability is essential. The PVG 128 and PVG 256 is used together with other valves in the PVG family. This will allow OEMs to easily enhance machine performance while improving productivity and lowering energy consumption. The use of common parts within the PVG platform means the high-flow valves can easily be incorporated into existing applications.

“We designed the PVG 128 and PVG 256 valves to have the same high performance and quality as the rest of our PVG proportional valves. The OEM customer can use these valves to achieve the high flow necessary for their demanding applications. They can combine them with the PVG 32 and PVG 16 for lower flow functions in their machines as well,” said Knud Meldgaard Jensen, Global Product Marketing Manager for Danfoss Power Solutions.

“By keeping the same design concept, an engineer can add a high-flow section to an existing application. This without requiring a complete redesign,” Meldgaard continued. “The valve modularity ensures OEMs can easily optimize their machine using the entire PVG valve range. This helps saving on space, weight and costs.”

Features and benefits

High performance and productivity — The PVG 128/256 valves are a pre-compensated valve. They provide the reliability necessary for the most demanding applications

Reduced costs and installation complexity — The PVG 128/256 valves can easily adapt to regional fitting standards

Optimal productivity and precise operation — The valves offer smooth, load-independent flow control

Improved energy efficiency and safety — Individual load-sensing A/B relief valves limit the pressure on each work port of a valve section, reducing material stress

A consistent control interface and easy setup — The PVG 128/256 uses the same actuation type as the PVG 32 and PVG 16 valves. Meaning it’s already compliant with electrohydraulic actuators, PVHC actuators and PLUS+1®

Optimized operator productivity — Using PVE S7 and PVED S5 from Danfoss combining with the PVG 128/256 valve ensures a high degree of precision. In addition, ensuring repeatability of the valve performance

Additional diagnostics — CANbus control lowers the cost of installation and ensures data availability on the machine’s existing bus system

Reliable operation — Each valve section has a manual control. This allows work to continue even in the event of electrical power failure