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Proportional valves
Digital proportional servo valves Series LR
3/3-way directly operated servo valves for the flow (LRWD2),
pressure (LRPD2) and position (LRXD2) control
Series LR digital proportional servo valves are direct driven 3/3-way valves with a patented rotating spool system with closed loop control circuit. The electronic board is integrated into the valve's body ready to connect.
Series LR*D2 digital proportional servo valve has been designed to be as compact as possible in order to save space and to be mounted on a DIN-rail.
Thanks to this new digital version, the valve can be configurated through a USB connection according to different requirements.
Directly operated and pressure compensated proportional solenoid valves Series CP
Function: 2/2-way NC
Sizes: 16 and 20 mm
Series CP directly operated proportional solenoid valves can be used where an closing loop flow control is required, with gas mixtures or to control flows.
Their cartridge design makes them particularly compact, thus they can be mounted directly near the workstation.
Series CP valves have been designed to optimize dimensions and reduce friction and stick-slip effects.
The output flow is proportional to the control signal.
Apart from the pressure compensated version, these valves can work also in vacuum.
A minimum working pressure is thus not required.
Directly operated proportional valves Series AP
2/2-way proportional valves, NC
Sizes: 16 - 22 mm
Series AP directly operated 2/2-way proportional solenoid valves, NC, with nominal diameters range from 0,8 to 2,4 mm, can be used where an open loop flow control is required, with gas mixtures, to control free flows or blows, or emptying chambers using vacuum.
Series AP proportional valves have been manufactured to optimize and reduce friction and stick-slip effects.
The output flow is proportional to the control signal.
As they can work also in vacuum, a minimum working pressure is not required.
Electronic control device for proportional valves Series 130
PWM control device, with current control system for directly operated proportional valves
Series 130 electronic control device allows to pilot any proportional valve with a maximun current of 1 A.
It turns a standard inlet signal (0-10V or 4-20 mA) into a PWM signal to obtain at the solenoid outlet a current which is proportional to the inlet signal.
A control system of the provided current allows to compensate variations due to heating of the solenoid or to the variation of the supply voltage. It is possible to adjust the maximum and minimum current provided to the solenoid. The outlet signal can have a ramp progress that is adjustable between 0 and 5 s. The device has a firmware dedicated to the proportional valve to pilot in order to guarantee the best performance.
Open Frame proportional controller Series OF
Modular system for proportional control of pressure, flow and position.
The Open Frame Controller can be easily configured to meet specific application needs, to provide the most efficient, turnkey solutions, this reducing assembly times and system complexity.
The different Head and Expansion modules can be combined and driven through simple serial communications, making the control of complex applications easier.
Typical applications could include the mixing of different gases, piloting different pressures in different parts of the machine.The new “Open Frame Controller” system is a platform for providing closed loop control of flow, pressure and position and is suitable for Industry 4.0 applications.
The system is composed of two base modules: Head and Expansion.