EPP Series Electric Valve Positioner 


 EPP2111; EPP2112; EPP2121; EPP2122; EPP2211; EPP2221; EPP2212; EPP2222; EPP2000 series electropneumatic positioner is the latest introduction of foreign design, developed by the factory's products. Its technical performance has reached the level of similar foreign products, and by the "National Instrument Safety Supervision and Inspection Station Explosion" inspection, access to the national explosion-proof certificate. The role of the locator device is to regulate the output of the electrical signal into movement of the gas control valve drive signal, and a valve positioning, that is to overcome the friction control valve stem force, offset by the price adjustment to changes in pressure caused by mass unbalance force , so that the valve opening adjustment device output corresponding to the control signal, to achieve correct positioning. Since the explosion-proof structure with a locator, it can make for explosion hazard. 


 EPP2000 Series Electric Valve Positioner 
 Brief 
 EPP2000 series of electric valve actuators and pneumatic positioner supporting the use of the input signal into 4-20mADC output air pressure control actuator movement. At the same time according to the trip actuator feedback, so that the actuator stroke can be precisely positioned by control signals. EPP2000 series electropneumatic positioner can be used for single-and double-action action-type actuator. 
 I. Overview 
 EPP2000 series of electric valve actuators and pneumatic positioner supporting the use of the input signal into 4-20mADC output air pressure control actuator movement. At the same time according to the trip actuator feedback, so that the actuator stroke can be precisely positioned by control signals. 
 EPP2000 series electropneumatic positioner can be used for single-and double-action action-type actuator. 
 II Characteristics 
 1, for small capacity and high capacity actuators: the use of load control spring, after the spring will be able to select the appropriate access to the most appropriate for the executive body of the locator. 
 2, a small air consumption: amplifier power consumption, large capacity. 
 3, you can choose output characteristics: As the feedback mechanism in the cam device, so you can choose the standard features than the output characteristics. 
 4, a variety of ways corresponding to the feedback model: 
 As long as the replacement of cam unit, the following can be used for the corresponding actuator. 
 * Linear actuators: Standard ------------------------------- EPP2 □ 1 □ 
 * Actuators: Standard ------------------------------ EPP2 □ 2 □ 
 5, variable amplifier into reaction: the role of implementing agencies need a single reaction control, the positive role of the amplifier is easy to transform into a counter-type amplifier. 
 6, explosion-proof type can be adjusted in the field: 4-20mADC as signal input connector and coil parts of the package was a explosion-proof structure, carrying out maintenance and itinerary adjustments, you can remove the explosion-proof area in the field Locator shell. 
 7, the construction of intrinsically safe and has a broad scope of application: coil with terminal box and the construction of intrinsically safe, so the zener barrier with special torque coil can be used in combination for all dangerous places, including Zone 0 gas, use of the environment temperature range of -40 ~ +60 ℃. 
 Quality assurance, welcome consultation to discuss! ! ! 
 Shanghai Hao-controlled valve factory workers 
 Contact: Wang 
 Sales Hotline: 13127770877 
 Tel Fax :021 -56,550,766 -56,551,266 
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 E-mail: 106926598@qq.com 
 24-hour service hotline: 13127770877