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AT70 Series

Heavy hammer electro-hydraulic actuator
AT70 SeriesHeavy hammer electro-hydraulic actuator

AT70 Series

Structure diagram
 
description
 
          AT70 series electro-hydraulic actuator is a new generation of intelligent heavy hammer self-protecting piezoelectric liquid actuator developed by our company. It is widely used in water industry applications requiring two-stage quick opening or two-stage quick closing, for example: power plant The emergency relief valve of the indirect air cooling device and the two-stage slow closing butterfly valve after the circulating water pump adopt the latest CPU intelligent control technology and the advanced variable diameter cylinder principle to ensure that the water hammer effect does not occur. Long-term reliable operation.
 
 Performance characteristics
● Servo pump control design, high reliability, low energy consumption, low maintenance cost ● Fully electrically isolated signal interface
●  Intelligent electronic control, visual interface, rich functions, to meet various process requirements ● Independent hand pump module for easy commissioning and emergency operation
●  Integrated and integrated design, self-contained power and oil source, small size, no external hydraulic piping required ● Multiple power supply options
 

 The main function
● Two-stage speed control function ● Fault alarm and reset function
● Fault self-diagnosis function ● Full open, full off and valve position status feedback
● On-site installation verification positioning and parameter setting function  


 Technical indicators
● Power supply: AC (50/60HZ); 220VAC/1P;
                        380VAC/3P; 400VAC/3P; 415VAC/3P ● Control accuracy: 0.2
    Basic error: ≤0.2%
    Repeatability : ≤0.2%
    Adjust dead zone: ≤0.2%
● Control accuracy: 0.2
    Basic error: ≤0.2%
    Repeatability : ≤0.2%
    Adjust dead zone: ≤0.2%
● Torque range (Rotary  type): 150Nm~250,000Nm ● Action response time: ≤0.5s
● Protection level (optional): IP67 ● Electrical interface: NPT3/4(F)*1, NPT1/2(F)*2
● Control mode: switch type
    Control signal: dry contact or 24VDC
    Status feedback: dry contact
    Valve position feedback: 4~20mA active
● Mechanical connection: in accordance with ISO5211 standard
 
 
Structure diagram
 
Hydraulic schematic
 
 
Electrical wiring diagram
 
Connection diagram with valve
 
 
 
Selection reference
 
AT70-01-O-O/C
AT 70 -01 -O -O
Aero Electro-Hydraulic Actuator Heavy Hammer type Torque series O: ON/OFF
M: Modulate
O: Fault open
C: Fault off
 
model Torque (Nm) Connection flange
AT70-01 500 F10
AT70-02 1000 F12
AT70-03 2000 F14
AT70-04 4000 F16
AT70-05 8000 F25
AT70-06 16000 F30
AT70-07 32000 F35
AT70-08 64000 F48
AT70-09 125000 F60

 


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