Full definition
Valve providing continuous variable control of flow or pressure, proportional to an electrical command signal (0-10V DC or 4-20 mA). Resolution: 0.1-0.5% of full range. Hysteresis: <1%. Response time: 30-100 ms. Includes onboard amplifier with adjustable gain and offset. Standard ISO 10770. Brands: Bosch Rexroth (4WRPH), Parker (D*FC), Atos (DHZO), Moog, Wandfluh.