Valve made in China Intelligent valve positioner is an intelligent process control instrument based on microprocessor technology and using digital technology for data processing, decision generation and two-way communication. intelligent valve positioner does not need manual adjustment. intelligent valve positioner can automatically detect the zero point, full range and friction coefficient of the regulating valve and automatically set the control parameters. The utility model relates to a valve positioner which can automatically detect the zero point, full range and friction coefficient of the regulating valve without manual adjustment, and automatically set the control parameters. The intelligent valve positioner usually only needs a 4 ~ 20mA current signal to realize the control function. When a 4 ~ 20mA current signal cannot meet the power consumption requirements of the positioner, an additional 24VDC power supply can be added. According to explosion-proof type: non explosion-proof, gas explosion-proof and dust explosion-proof. According to explosion-proof structure: intrinsic safety, explosion-proof, increased safety, pouring and sealing, etc.Valve made in China website:http://www.kindratechina.com/fitting-part-for-piping-system/valve/