Linde Hydraulics GmbH & Co. KG has introduced its next generation of control valves.

The new valve block VW 22/18 M5-03 for the open circuit is characterized by its modular system, whereby the Monoblock with five sections plus pressure relief section represents the basic set-up. Optionally, three additional sections can be added on each side of the block, thus specifically addressing customer needs.

Various functions can be selected for the additional sections, which are designed for the requirements in a wheeled excavator. In addition to proven options such as boom or lift-regeneration, anti-drift and return flow bypass, Linde Hydraulics now also offers rod-to-head-regeneration and an innovative float function for the excavator for the first time.

Source: Linde Hydraulics

In conventional control valves, the actuator is fixed. In this way, it is rigid and cannot adapt to external conditions. In certain applications, however, it is desired that a cylinder yields to external forces by being able to retract and extend — the so-called floating function. This is particularly important when either increased wear of the attachment on a hard surface or damage to a sensitive surface by the attachment is to be avoided.

The control valve is available in two nominal sizes: nominal size 18 with a max. flow rate of 250 l/min and size 22, which allows a max. flow rate of 350 l/min.

The valve block is already in use at a pilot customer in a wheeled excavator and can also be used for material handlers.

For more information, visit the Linde Hydraulics GmbH & Co. KG website.