Hydraulic Servo Valves Explained
Hydraulic servos are at the heart of many hydraulic systems, providing precise control over fluid flow and actuating components. In this article, we look at
Increasing efficiencies to drive low costs and higher profitability with our ground-breaking products, components and sub-systems that set new standards in power density and dynamic performance.
Domin’s servo valve range represents the pinnacle of hydraulic efficiency and precision. Combining cutting-edge technology with compact design, our valves offer unparalleled performance without compromise. Delivering world-class precision, reduced downtime, and considerable energy savings, Domin valves are the optimal choice for motion control applications.
A world-class system, enabling true independent four-corner electric actuation and the route to energy-optimised electric vehicles.
Save weight with the removal of electronic anti-roll control, adaptive damping and springs saves >40kg per vehicle.
Enables lower coefficient of friction tyres, ride height adjustment, reduction of electrical power consumption for 10% range extension over WLTP.
Minimise energy use with an average power consumption of just <5W per corner, including roll control.
300-7000 Ns/m in <3ms
20-250 N/mm switchable in <3ms
75+mm
<5kg per corner
Electrical power & signal only (analogue/CANBus)
We have developed next-generation actuation and control technology that offers benefits on all fronts.
Our brake-by-wire technology is less than half the weight of equivalent EMAs, and finally enables the removal of the central hydraulic system, creating massive weight savings.
Size
S01
Rated Flow @ 70 Bar
18 lpm
Frequency @ 25%
18 lpm
Step Response
18 lpm
Electronics
18 lpm
• Easy to interchange these units with affordable assembly kits available to minimise system
changes. These include female connectors and adaptor plates.
• Lower servicing costs, as there are no high-pressure seals, no filters, fewer components,
simpler assembly, and environmental sealing.
• Considerable annual energy savings with elimination of quiescent leakage from the pilot stage,
reduced hydraulic power consumption, reduced CO2 consumption by 1 ton annually when
replacing a two-stage with a DDV, and 1 tonne of CO2 required 2500 kWh of energy.
• Improved product quality: advanced electronics give precise and accurate closed-loop control and modern spool sensing technology.
• Increased productivity: fast steps responses of 3ms compared with competitors of over 8ms, high flow rates, and high frequency response.
• Repeatability: low hysteresis that give high accurate movement in both directions, low threshold, and low null shift.
• Less down time: with no first stage, all small blockage prone features are removed.
• More contamination resistance: with a more powerful motor, the high torque electric motor gives great resistance to chip shear events. Intelligent onboard electronics can detect chip shear events and shut valve to avoid damage
• Reduce maintenance cost by being fatigue proof; all valves are cycled to 5250psi for 1 million cycle pre-shipping and are designed and built to last.
How the world currently uses energy is inefficient, expensive, wasteful, and has a high carbon output. Meaningful change to reduce the amount of energy that we consume is needed. Achieving more with less is how we make this possible.
When we improve efficiencies, we reduce energy use, we reduce waste, we reduce costs, we improve sustainability, we improve profitability.
Hydraulic servos are at the heart of many hydraulic systems, providing precise control over fluid flow and actuating components. In this article, we look at
There has been a recent shift away from traditional central hydraulic systems. Electrohydrostatic and electromechanical motion control have become the two popular alternatives for controlling
The automotive industry is at a crossroads, facing the challenge of sustainability. This shift stems from the pressing need to improve air quality by reducing
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