I.Overview
1. As the actuator of the valve control system, the reliability and controllability of the actuator are directly related to the safety of the equipment. The quality of its function will directly affect the overall level of automation.
2.Flowtell series electro-hydraulic actuator is an intelligent actuator which integrates hydraulic, electronic and mechanical technology. It not only has the characteristics of intelligent electric actuator and simple operation, but also has the advantages of high precision, high reliability, high life and large load capacity of hydraulic actuator. Modular design, small volume, simple structure, easy installation, debugging, maintenance, do not need a huge independent external oil supply source, simplified the system structur.
3.This series of products can be selected in three forms according to the different site conditions and installation positions:
1）Electro-hydraulic integrated, that is, the electronic control component is integrated on the actuator;
2）Electronic control split type, that is, the electronic control part is independent of the actuator, which is used for the actuator installation position is not easy to operate the occasion;
3）Power split, that is, the power module integrated electronic control unit is independent of the actuator, which is used in the pipeline vibration, high temperature occasions.
II. Product characteristics
1. Electro hydraulic integration, modular design
2. No need for external oil source, adopts oil circuit block design, as a closed system, no oil leakage risk, high reliability, long service life
3. Requires minimal routine maintenance and is highly adaptable to the operating environment
4. Input and output 4-20mA analog signal or switching signal
5. The travel speed is fast and the required travel speed is determined by the specification and quantity of the power module
6. Two kinds of single acting and double acting cylinders, which can realize large thrust output
7. Speed, dead zone and other parameters can be set
8. With autonomous monitoring and diagnosis function, overload protection and running state alarm can be realized
9. Explosion-proof rating：Exd IIB T4 Protection class:IP66-IP68
10. ESD emergency switch function (optional)
11. Support Ethernet protocol, HART protocol and Modbus protocol (optional)
12. 100% continuous adjustment control or on and off two position control mode.
III. Product structure composition
Ⅳ.Composition of power module
V .Set local parameters of the power module
Ⅵ. Composition of the oil cylinder
1)The executive cylinder is divided into two forms of double acting and single acting, mainly according to the control requirements of the failure position to choose.
2)Double acting cylinders are used where f.L. is required, and the accumulator can also be used to achieve FO or FC
3)Single acting cylinder is used for spring return to achieve F.O or F.C.
4)The regulator cylinder is equipped with a direct stroke displacement sensor, the non-contact design can improve the service life of the sensor, the repeated positioning accuracy can reach ±10um. The sensor can set the starting point and the end point of the measurement arbitrarily within the range. The servo control system integrates the function of setting the sensor position, and can realize the automatic or manual check of the actuator stroke through the local operation button.
Ⅶ. Technical characteristics of the oil cylinder
1)Linear oil cylinder adopts the structure design of high-strength cold-drawn seamless steel pipe and piston after derivative grinding, small size, strong and durable, high output efficiency, wide output force range;
2) The high pressure power of the hydraulic system makes the hydraulic actuator have smaller weight than the pneumatic, electric and other actuator;
3) The hydraulic medium is incompressible and the system has zero leakage and high pressure preservation, so that the electro-hydraulic linkage actuator has very high positioning characteristics.
4) Inflammable hydraulic liquid can be used as medium (such as phosphate ester EH oil, etc.) in high temperature and flammable occasions.
5)High precision position control and speed control can be realized through the proportion and servo valve, so as to realize the adjustment characteristics of the valve.
Ⅷ. Power module parameter
Ⅸ .Model Description & Output thrust/tension meter
Ⅹ. Outline dimensional drawing
XI. Electrical wiring diagram
1. DC24V motor/Regulatory type electrical wiring diagram
2. DC24V motor/ON-OFF type electrical wiring diagram
3. AC220V/1PH motor/Regulatory type electrical wiring diagram
4. AC220V motor/ON-OFF type electrical wiring diagram
ⅩII. Remarks:
1. The power unit AC220V is S3 working system; DC24V is S1 working system.
2. Before installation, ensure that the cylinder, tubing, joints and other hydraulic components clean without any impurities adhesion.
3. The viscosity of hydraulic oil should be 15~68CST, and it should be clean and free of impurities. It is recommended to use 32# hydraulic oil.
4. This hydraulic power unit is suitable for horizontal or vertical installation.
5. After starting the operating system for the first time, check whether the amount of oil in the tank is sufficient.
6. The hydraulic fluid should be replaced after the first 100 hours of system use and every 3000 hours thereafter.
EFYG-DA/DCB-NXQ Type Linear Electro-hydraulic Actuators（Download）
