ZPD-2000 type electric-gas valve positioner is the main supporting instrument of pneumatic actuator in industrial automation, can be used to improve the linearity of valve position, overcome the friction of valve rod and eliminate the regulating valve imbalance effect etc., so as to ensure the valve position according to the regulating instrument comes from 0-10MA. DC or 4-20MA, DC's current signal is proportional to achieve correct positioning. Electro-gas valve positioner alëu bï ya tɔ̈ɔ̈u kek pneumatic film execution mechanism, wala pneumatic piston execution mechanism; Ku Shanghai Yingling's electric-gas valve positioner ee luui yii de electric-gas converter ku pneumatic valve positioner. Ku nunu, ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan ye luɔɔi de ye raan