1.electric proportional valve actuator in high quality ,competitive price. 2.Factory offered , fast delivery 3.OEM , ODM is ok electric proportional valve actuator Motor parameter 24Vac ,50/60Hz,10Va control signal 0-10V DC ,2-10v dc,0-20mA or 4-20mA DCElectronic circuit power 1VA feedback signal 0-10VDC Controlled operation Proportion of control or reverse PN3000N component/material alminum ...