Advanced hydraulic controls speed machine response, eliminate oscillations, and save energy. Wheel loaders with electrohydraulic flowmatching controls use less energy than machines with conventional loadsensing controls. A major challenge facing mobileequipment designers is dealing with a large number of actuators that require hydraulic flow. Machines frequently have up to 10 hydraulically powered functions, with three or more operating simultaneously. And often, due to space, weight, or cost reasons, a common pump supplies all the circuits. Thus, as an operator actuates various subsystems, control valves must handle the demanding task of compensating for flow changes and disturbances. The goal is to ensure adequate flow to all actuators, even when operating several systems simultaneously, so there is no drop off in machine performance. To ensure flow matches demand, hydraulics manufacturers fit control valves with pressure compensators that control flow rates or distribution. Two designs predominate. One, called load sensing (LS),
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Products & Services
Electrohydraulic Cylinders
Electrohydraulic cylinders are actuation devices that use pressurized hydraulic fluid to produce linear motion and force. A hydraulic pump is an integral part of the cylinder design.
Electrohydraulic Valve Actuators and Hydraulic Valve Actuators
Electrohydraulic valve actuators and hydraulic valve actuators convert fluid pressure supply pressure into motion.
Cylinder Repair Services
Cylinder repair services rebuild and refurbish used or damaged cylinders. They disassemble and clean cylinders, inspect them for cracks and other damage, and re-hone cylinder surfaces.
Valve Actuators
Valve actuators mount on valves and, in response to a signal, move a valve to a desired position using an outside power source.
Pneumatic Valve Actuators
Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion.

Product Announcements
HydraForce, Inc. - Proportional Valve w/ Integral Piloting Saves Cost
New Patented Solenoid-Operated On/Off or Proportional Valves with Integral Piloting or Load-Signaling Capability can Reduce Manifold Space Claim. (read more)
Fluid Power Associates, Inc. - Open and Closed Loop Proportional Valves
Electrohydraulic proportional controls modulate hydraulic parameters according to the electronic reference signals. They are the ideal interface beweeen hydraulic a dn electronic systems and are used... (read more)
Continental Hydraulics - What Makes PowrFlow™PVR Vane Pumps Your Best Buy?
Our variable volume vane pumps are an excellent choice for many industrial applications. These field-proven, highly durable pumps provide long life and quiet operation resulting from the use of heavy... (read more)
HydraForce, Inc. - 5-Way Solenoid and Proportional Valves
The complete line of 5-way, 3-position cartridge valves is now available in standard 08 size and 10 size cartridges. Both the 57C/D and the 58C/D models feature a load-sense port which helps to... (read more)

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Modular load-sensing valves control flow and pressure, permitting simpler, more-versatile hydraulics. An essential requirement of modern hydraulics is that various implements on a machine operate...