The importance of Hydraulic Valves in motion control

Hydraulic Valves represent the “brain” of every hydraulic system. If the pump generates the flow and the motor transmits the movement, it is the valves that determine how, when, and with how much force that movement should occur. Without an adequate valve system, a machine would be impossible to manage safely, especially when operating with heavy loads or in sloping conditions.

At FP Trasmissioni, we provide a complete range of Hydraulic Valves designed to interface with piston and orbital motors. Their primary function is to regulate pressure and flow, but they also play a vital role as braking and balancing devices. Choosing the correct valve means protecting mechanical components from sudden pressure peaks and ensuring millimetric precision in commands for the operator.

Rexroth valves for swashplate motors

For those using high-performance systems, we stock Rexroth Hydraulic Valves specifically designed for motors of the same brand. These units are the ideal match for swashplate or plug-in motors, where braking management must be extremely smooth.

Rexroth-derived Hydraulic Valves ensure that the motor always works within its optimal parameters. Thanks to precision calibration, these valves eliminate water hammer effects that often occur during reversals or abrupt stops. Having original or compatible components of this level available allows for maintaining system efficiency at maximum levels, drastically reducing the risk of internal motor component failure.

Control for M+S orbital motors: OMS and OMSS series

We do not only deal with piston motors. Our offer includes Hydraulic Valves dedicated to large displacement orbital motors, such as the OMS and OMSS models from M+S Hydraulic. These motors, widely used in the agricultural and industrial sectors, require balancing valves (overcenter) to prevent the load from “running away” from the operator’s control.

The integration of these Hydraulic Valves on M+S OMS series motors allows for managing winches, drive wheels, or rotating arms with total safety. The version for OMSS (plug-in) motors is particularly valued for its compactness: the valve is mounted directly on the motor flange, reducing overall dimensions and simplifying the routing of hydraulic hoses on the machine.

Types of Hydraulic Valves and their functions

There are several categories of Hydraulic Valves, each with a specific task to improve motor performance:

1. Balancing Valves (Overcenter): These are essential for holding the load in position and controlling its descent. They prevent cavitation and guarantee smooth hydraulic braking.

2. Anti-shock Valves: These serve to protect the motor from pressure peaks that can occur during mechanical impacts or instantaneous stops.

3. Flushing Valves: Often used in closed circuits to renew hot oil inside the motor with fresh oil from the tank, improving system cooling.

4. Shuttle Valves: These allow for releasing parking brakes or changing speeds in dual-displacement motors.

The installation of these Hydraulic Valves directly on the motor body (flange mounting) is always the preferable solution, as it reduces the number of fittings and the possibility of oil leaks over time.

Maintenance of Hydraulic Valves

To maintain the effectiveness of Hydraulic Valves, the determining factor is fluid cleanliness. Since these valves use spools and springs with very tight tolerances, the presence of contaminants in the oil (metal shavings or sludge) can cause the valve to seize. At FP Trasmissioni, we recommend always checking the condition of hydraulic filters when replacing a valve or a motor.

If you have a system based on Rexroth technology or M+S OMS/OMSS motors, the choice of the control valve should not be left to chance. Our warehouse in Forlì manages several variants to adapt to every flow rate and operating pressure.

Why choose FP Trasmissioni for your valves

Beyond supplying components, we offer the expertise to identify the correct solution. You do not need to be a hydraulics expert: simply provide us with the motor or pump model, and we will indicate which Hydraulic Valves are necessary to operate your system safely.

Our immediate availability of valves for Rexroth systems and M+S orbital motors allows us to process orders quickly, minimizing downtime. Whether you need to repair an excavator, a winch, or an agricultural machine, our Hydraulic Valves guarantee durability and consistent performance. Contact us for a consultation or to receive an updated quote.