Pneumatic pneumatic - valve The intelligent positioner

one, foreword electric pneumatic valve positioner is one of the key accessories pneumatic regulating pneumatic valve, its effect is adjusting device of the output electric signal into actuating gas signal of pneumatic valve action. It has pneumatic valve positioning function, is to overcome the friction of pneumatic valve stem, and can be overcome by medium pressure changes caused by the unbalanced force, so that they can make the pneumatic valve quickly followed, and corresponds to the regulator output control signal, realizing fast positioning, adjust the pneumatic valve to improve the quality of its regulation. With the development of intelligent instrument technology, microelectronics technology is widely used in traditional instrument, greatly improve the function and performance of the instrument. Its application in the electric pneumatic valve positioner make the performance and function of the intelligent positioner is a big leap. Second, the intelligent electric pneumatic valve positioner compared with traditional locator. The working principle of the traditional electric pneumatic valve positioner main contents: intelligent electric pneumatic valve positioner is used to control the proportion of pneumatic valve positioner. Qigong is proportional to the standard output MA MA dc signal. It with a straight line or ℃ rotating cylinder type and thin film type actuator. Main technical and economic indexes, and the standard input signals: - MA, cheng scope: - MA，- MA, input impedance: maximum Ω, feedback shaft rotation Angle: the maximum °, gas supply pressure ps:. - 。 Mpa gas supply pressure effect: & lt; 。 % / kpa, environment temperature: - & #; + ℃, dynamic lag + dead zone: & lt; 。 %, static hysteresis + dead zone: & lt; 。 %, and linear error: & lt; %, field: + LCD display, HART protocol and general HART handset

YAZE ( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve pneumatic actuator