Multi Turn Electric Modulating Device

Freya Electric Actuator is a brand-new self-developed product. By referring to the previous mature products the technical research staff digest and absorb the, design and manufacturing technologies of the foreign advanced electric actuators. They succeed in integrating such latest automation technologies as fieldbus technology absolute coding technology, remote control and magnetic switch control technologies into this new product.

DZW series of products are used to control open and close of the valves. The products can be used for brake valve, stop valve, shutoff valve, and diaphragm valve, the derived products can be used for ball valve, butterfly valve and throttle etc., the product can accurately act according to the control instruction, therefore it is necessary driving unit for achieving remote control, centralized control and automatic control.

DZW-_02

Product Structural Features

Power transmission

The power transmission of the actuator adopts the precise speed reducing mechanism composed of bronze alloy worm gear and alloy steel worm. The worm gear and worm run in the lubricating grease separately to be adapted to the maximum environmental temperature difference and prolong the service life to the utmost extent.

Driving motor

The motor is a low-inertia and high-torque motor, so that the peak torque can be rapidly reached when the motor is started. There is almost no over-limit movement when there is no excitation. The motor is provided with accurate temperature sensors. Over«temperature limit values can be set through the control system to avoid burning caused by motor overheating.

Housing anti-corrosion

The exterior surface of the actuator adopts special metal painting for aluminum alloy with tough painting film and strong adhesion. With very strong resistance to ultraviolet and corrosion and high fullness, it can completely enhance the service life and self«cleaning performance of the coating, and is suitable for various severe production environments.

Terminal box

The independent sealed terminal cavity can ensure closure integrity of the electrical part in the electric actuator during field wiring and also guarantee that the explosion-proof requirements are met.

Output connection

The actuator flange meets the ISO5210/5211 (GB12222/12223) standard, and flange

connections that meet the JB2920 standard can also be supplied. We can also provide customized products according to customer requirements

Sealing structure

The actuator adopts a double sealing design structure to ensure that the actuator is totally resistant to water and dust. The standard product protection grade is IP67, with the maximum reaching IP68.

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Pls Consult Our Sales To Order Now

Technical Parameter

DZW-_05

Power supply:

380 v AC+ 10% I 50 hz plus or minus 5%, or custom

220 v AC + 10% I 50 hz plus or minus 5%, or custom

Input signals

A) analog quantity 4mA～20mA DC, input impedance 250Ω

B) On-off quantity active 24V DC

C) the profibus- dp or MODBUS (optional)

Output signal.

A )4 ma ～ 20 ma DC, load resistance Ω 750 or less

C) 6 groups of passive contacts

C) PROFIBUS or MODBUS (optional)



Fundamental error bound≤1％

Repeatability error:≤¯1％

Dead band setting:0.1％-9.9％adjustable

Protection grade:standard IP67(1m underwater 30 minutes)

Optional IP68





Low temperature: 20℃～＋60℃ special-40℃～ ＋ 70 ℃

Ambient humidity: ≤95% (+25®C)

working system: S2-15min short-time working system for NZ on-off type

S4- 25% intermittent working system for NT control Type

Explosion-proof marks: Exdl, Exdib II BT4 and Exdib II CT4

Technical Conditions Pls Consult Our Sales To Order Now

1.Power supply: The motor is three-phase AC380V, 50 Hz. The control is two-phase AC 220V, 50 Hz, optional power supply: AC220~660V, 50.60Hz (needs to be explained during ordering).

2.Ambient temperature: -20～+60℃；optional temperature:-40～70℃.

3.Relative humidity: Not greater than 95% (at 25 ℃).

4.Working environment: The common type is used in the places without inflammable, explosive and strong corrosive medium; the using environment of flame-proof products (ExdIIBT4) are used in explosive gas mixture of IIA, IIB grades, T1-T4 groups.

5.Protective grade: IP65/67 (IP 68 for special ordering).

6.Working provisions for the motor: Rated operation time is 10min. Grade F insulation.

7.Anti-corrosive coating: High-temperature stoving varnish