Youli Hydraulics - click to visit their website.
C&C Hydraulics can now offer the PV-3 and PV-4 proportional control valves from Youli, Proportional control valves or electric proportional control valves provide variable control of flow, pressure or direction in response to an electrical input signal. Designed and built to meet the unique needs of even the most demanding application both models of valve offer a wide range of spools and control options and give a high level of accuracy when controlling either hydraulic cylinders or hydraulic motors.
The valve sections are completely interchangeable with the Danfoss PVG range so offer an economic option for servicing the valves.
Please click the images below to view the full specifications (PDF.)
Proportional valves PV-3By using PVG load-sensing technology in combination with a variable displacement pump, it’s possible to achieve a significant reduction in energy loss. PVG valves also reduce heat generation and increase efficiency and power density, which helps OEMs to meet the challenges posed by new diesel engine emissions legislation.
The PV valves are used across a wide range of industry sectors including road transport, materials handling, agriculture, public works / utilities, marine and industrial. The type of machines using this valve technology are vehicle mounted cranes, excavators, hedge trimmers, tele handlers, tractors, wheeled loaders and forklifts.
The system has been designed to make both installation and setting up as quick and as simple as possible for the body builder. The modular construction sectional valve allows all the geometric and speed controls to be assembled in the same block so saving time remote mounting in line valves and making adjustments during the setting up process making it a one man operation. All the electric coils have been specified with Deutsch connectors giving an IP69K rating against water ingress and vibration.
The remote control system comes with a fully comprehensive wiring loom with the male Deutsch connector and all cables are numbered to go with the corresponding coil on the valve ( see drawings below ) this in effect create a plug and play set up again saving time for the installer.
Finally the end user gets the benefit of being able to operate the folding ramps with full visibility during the opening and closing cycles so making it safer and more comfortable.
Opportunity – The vehicle recovery market has traditionally been supplied with hydraulic slide bed type vehicles for many years, these generally give an approach angle of between 7 -9 degrees depending on chassis and body length. This angle has been fine for the traditional type of vehicles but over recent years many cars are being fit with front end spoilers to make them handle better and improve fuel economy, these spoilers make the ground clearance very low and foul and become damaged when being loaded onto this type of vehicle.Continue reading
