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Ulli Series

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Ulli Series/
General Duty On-off Electric Vavle Actuators 

Screenshot 2025-06-06 at 2.58_edited.jpg

The ulli® series represents the company’s quarter-turn(part-turn) on-off electric valve actuators
Torque range from 20NM to 6000NM
Both Male and Female type available.

Prefix meaning:
"U" stands for "unique," highlighting patented designs.
"L" for "light" (lightweight) and "long life" (durability).      "I" for "intelligentize," emphasizing smart features.

Introduction

Built to Meet Every Actuation Need

The Ulli series is engineered to deliver maximum durability, compactness, and ease of installation. Its ultra-compact body reduces the spatial issues often encountered in today’s dense piping networks and control environments. The mounting base adheres to international interface standards, and users can choose either a female drive or an optional male drive to allow direct connection to a broad range of valves. Constructed from high strength diecast aluminum, the enclosure provides long term reliability that typically surpasses the service life of the valves it operates.

 

Offering adjustable torque levels from 20 Nm to 6000 Nm, the series is suitable for an extensive range of actuation requirements. It accommodates everything from ball valves near from DN15 to DN500 and butterfly valve from DN30 to DN250. The rugged housing is suitable for both indoor control panels and outdoor installations exposed to sun, rain, and temperature variation. The actuator operates reliably within a wide temperature range of -40°C to 55°C, incorporates F class insulation for superior thermal protection and motor longevity, and is IP68 rated for complete protection against dust and prolonged water exposure.

 

Built to Meet Every Actuation Need, the Ulli series offers consistent performance and reliability for everyday industrial use.

Features & Benefits
Functionality Performance & Integration

Ultra Compact and Lightweight

Truly bracket-free - only 35% of the size and weight of products in the same class with ISO 5211 direct mount.

Smart Control

Built-in smart control module, eliminating the need for external positioners.

Customization Options

Shaft types, male/female, BLDC motor, overload protection,

explosion-proof, emergency shut-off, etc.

Versatile Power Option

AC220V, AC110V, DC24V, AC24V, AC380V

High-Speed Option

Full travel time adjustable to 5s, 10s, 15s, 30s, or 60s. Proprietary patented design enables significantly increased speed and minimal heat generation.

Reliability & Durability

Certified Safe

Tested with 1500V withstand voltage, F-class insulation, CE compliant.

Robust Build

Die-cast aluminum housing with a refined, smooth finish to reduce electromagnetic interference. Integrated worm gear output shaft made of specially forged copper alloy, offering high strength and excellent wear resistance.

Wide Environmental Compatibility

No lubrication or inspection needed. IP68 waterproof, rustproof, and supports angle-free installation.

Position Feedback

Clear visual indicator for quick status check.

Series Specification

Torque Output

20 to 6000 Nm

Voltage

220V AC Single-Phase

110V AC Single-Phase

380V AC Three-Phase

24V DC

220V DC

Materials

Mounting/Shaft: Copper Alloy


Base: Diecast aluminum alloy


Cover: Diecast aluminum alloy


Cover and Base Finish: Powder coated epoxy

 

ISO 5211 Direct Mount Connections
Flange

F05 / F07 / F10 / F12 / F14 / F16 / F25


Drive shaft

Female or Male drive shaft

 

Temperature Range


–40°C (space heater required) to 55°C


–40°F (space heater required) to 131°F

 

Electric Motor

F class insulation

Passes 1500 V dielectric withstand testing

 

Enclosure Rating

IP68

 

Electrical Connection

PF1/2" conduit

 

Lubrication


Molybdenum based grease, permanent and effective

Typical Applicable Valve Sizes

Ball valves

DN15-DN500

Butterfly valves

DN25-DN1000

Options & Add-Ons

Viewing window type

Flat or spherical

Drive connection

Female output drive or male output drive

Outer cover colour

Black, blue, or gray housing

Output shaft types

Four square, round hole, double D, or keyed output shaft

Handwheel

Manual handwheel with mechanical disengagement

 

Power outage return

Preset fail open or fail close operation during power loss

 

Electronic overload protection

Bidirectional electronic overload protection with output terminals

 

Brushless DC motor drive

Brushless DC motor drive with high efficiency and minimal heat output

 

Current position feedback

Current position transducer for valve position feedback

Advanced H class configuration

High temperature resistant components with enhanced environmental protection

Video 
Specifications
Model ​
Power Supply
Torque
Stroke Time for 50Hz 50Hz
Motor Power (In/Out) For AC Motor
220V Start Current
220V Rated Current
Weight (kg)
IP Class
ulli-2
AC24V AC220V AC110V
20
30
15W/5W
0.12A
0.12A
1.8
IP68
ulli-5
AC380V AC/DC24V AC220V AC110V
50
30
30W/10W
0.25A
0.25A
2.6
IP68
ulli-10
AC380V AC/DC24V AC220V AC110V
100
30
80W/23W
0.58A
0.5A
3.7
IP68
ulli-16
AC380V AC/DC24V AC220V AC110V
160
45
100W/30W
0.72A
0.6A
3.7
IP68
ulli-20
AC380V AC/DC24V AC220V AC110V
200
30
100W/30W
0.72A
0.68A
3.7
IP68
ulli-25
AC380V AC/DC24V AC220V AC110V
250
30
150W/90W
0.69A
0.6A
7.5
IP68
ulli-50
AC380V AC/DC24V AC220V AC110V
500
30
300W/90W
1.38A
1.2A
8
IP68
ulli-60
AC380V AC/DC24V AC220V AC110V
600
30
300W/90W
1.38A
1.2A
8
IP68
ulli-100
AC380V AC/DC24V AC220V AC110V
1000
50
300W/90W
1.38A
1.2A
12
IP68
ulli-200
AC380V AC/DC24V AC220V AC110V
2000
100
300W/90W
1.38A
1.2A
12
IP68
ulli-400
AC380V AC/DC24V AC220V AC110V
4000
150
500W/150W
2.3A
2.0A
31
IP68
ulli-600
AC380V AC/DC24V AC220V AC110V
6000
150
500W/150W
2.3A
2.0A
31
IP68
Model Variations

ulli-xxs:     Four-position switch signal feedback (dry contact or LED)
ulli-xxR:    Potentiometer (resistive) position feedback 
ulli-xxEX:  Explosion-proof design 
ulli-xxw:   Wireless remote control with RS-485 Bus Control 
ulli-xxt:     Electronic bidirectional overload protection 
ulli-xxCB: Super capacitator failsafe function 
ulli-Lxx:     Linear actuator with position indicator light 

Direct Mounted Dimensions for Butterfly Valve

Butterfly Valve Mounting Dimensions for Direct (bracket-free) Installation 

— For Reference Only

Electric Actuator Model
Compatible Butterfly Valves (DN)
Flange Standard (ISO 5211)
Bolt Circle Diameter (PCD)
Stem Size
Extension Length (mm)
Chamfered Circular Diameter
Screw Thread Diameter
ulli-2
25-50
F05/F03
D50/D36
9*9
10-15
No restrictions
M6/M5
ulli-5
50-80
F07/F05
D70
11*11
0-20
No restrictions
M8/M6
ulli-10
100
F07
D70
14*14
15-25
No restrictions
M8
ulli-16
125-150
F07
D70
17*17
15-25
≤ Φ22
M8
ulli-25
200
F12/F10
D125/D102
22*22
20-30
≤ Φ30
M12/M10
ulli-50
250
F12/F10
D125/D102
27*27
25-40
≤ Φ36
M12/M10
ulli-100
300-400
F14
D140
27*27
25-40
≤ Φ37.6
M12
ulli-200
400-500
F14
D140
36*36
30-40
≤ Φ48
M12
ulli-400
600-700
F25
D254
38*38
35-50
≤ Φ75
M20
ulli-600
800
F25
D254
46*46
35-50
≤ Φ75
M20
ulli-600
900-1000
F25
D254
55*55
35-50
≤ Φ75
M20
AC24V / DC24V Dual Voltage Actuator

The AC24V/DC24V universal actuator utilizes our proprietary "function block" design (as shown in the diagram) toachieve dual-voltage compatibility. When using AC24V, the wiring method is exactly the same as for our standard ACmodels. If using DC24V, connect the negative terminal to terminal 1 and switch the positive polarity between terminals 2and 3 to control rotation direction.

Model
Power Supply
Torque (Nm)
Stroke Time for 50Hz (Sec)
Locked-Rotor Current (A)
Working Current (A)
Weight (kg)
IP CLASS
ulli-5
AC/DC 24V
50
6
0.6
0.3
2.6
IP68
ulli-10
AC/DC 24V
100
12
1
0.6
3.7
IP68
ulli-25
AC/DC 24V
250
11
3
1.5
7.5
IP68
ulli-50
AC/DC 24V
500
22
3
1.5
8
IP68
ulli-100
AC/DC 24V
1000
45
6
2.5
12
IP68
ulli-200
AC/DC 24V
2000
100
6
2.5
12
IP68
ulli-400
AC/DC 24V
4000
100
10
5
31
IP68
ulli-600
AC/DC 24V
6000
150
10
5
31
IP68
AC/DC 24V Power Supply Universal Circuit Diagram:
dual voltage diagram.jpg
Diagrams & Drawings
Screenshot 2025-05-20 at 6.10_edited.png

Spherical viewing window

Allows for horizontal observation of the open/closed state from distance

Gear reduction cover 

contains a gearbox inside

Manual Override Port

with Anti-Drop Feature

For attaching a handle or installing ahandwheel

Stainless steel anti-drop screws

A handle or handwheel can be installed here

Wiring Cover

Users open this cover to connect wires

Electric Cover

With various electrical

components built in

Screenshot 2026-03-09 at 2.56.41 PM.png

Internal Visual Indicator

Enclosure / Housing

Limit Cam

Cam Locking Screw

Motor Pinion

Gearbox

Compound Gear

DG1

Compound Gear

DG2

Intermediate Idler Gear

Gearbox Side Cover

Waterproof Plug

External visual indicator

Electrical Cover

Limit Switch

Capacitor

Cable Gland

Terminal Block

Worm Gear

Screenshot 2025-07-16 at 5_edited.png

1

2

3

1

4

5

6

7

8

Spherical Viewing Window

Wiring Cover

Electrical Cover

Gear Reduction Cover

Housing/Body

Handle or Handwheel Opening Plug

Cable Fixing Head

Output Shaft or Output Hole

For dimensional drawings, please refer to the product page corresponding to the applicable torque.

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