PACO

Electric actuator ARI-PACO 0,85kN

Description

PACO
Electric actuator ARI-PACO 0,85kN
Application: Heating facilities, AIR conditioning facilities

Actuating or shut-off valves are operated with the ARI-PACO linear actuators which have a linear nominal path of up to 20 mm and require a thrust force of 0,85 kN.
The linear actuators are adjusted to the thrust forces denoted in the technical data.
When delivered with the valve the linear actuator travel has been adjusted to the control path of the valves.
The plant planner is responsible for the professional selection of the drive variant for the respective armature and the employment of the linear actuators according to the current technical data.
Any use of the linear actuators in ways other than described in the technical data as well as inappropriate usage is hence not in accordance with the regulations.
The environment must conform to the currently-valid EMV regulations.
Annual inspection is required in order to sustain electromagnetic compatibility. Furthermore, the level of the electromagnetic load in the environment should be monitored if electrical or electronic components have been mounted in the surroundings.

Method of functioning

The linear actuator, fitted with a yoke, is mounted on the valve.
The transfer of force is carried out by means of a coupling protected from torque.
The torque protection also functions as the travel display.
The actuating ranges can be read from the travel scale which is attached to the yoke.
The electrical modules are separated from the transmission and are located in the sealed housing, protected against operating and environmental conditions.
After removing the housing, the switching and notification assemblies are easily accessible.
The twisting movement of the motors is transferred to cylindrical gears on the stem nut. The drive stem, secured against torque, screws itself into the stem nut and thus, depending on the direction, a pulling or pushing movement is created.
In the end positions of the valve, the stem nut is pressed against a spring assembly and generates a closing force.
The motor is switched off by means of a force-dependent or electronic switch.
The force-dependent switch will also switch off the motor if a foreign body has come between the valve seat and cone.
The switch protects the valve and the linear actuator from damage.

Diagram

PACO Electric actuator ARI-PACO 0,85kN

Pos.	Designation
1	Yoke
2	Bellow
3	Travel indicator
4	Torsion safety feature
5	Coupling
6	Hood
7	Cable conduit fitting
8	Handwheel
9	Hexagon-head screw M8

Tecnical data

Type	ARI-PACO
Thrust kN	0,85 D	0,85 Y
Travel max. mm	3 … 20
Control speed mm/sec.	0,11
Motor voltage ( ±10% )	230V – 50 / 60Hz*	24V – 50 / 60Hz*
Control signal (input)	Three-step signal	0 (2) – 10 V DC (invertable, max. 0,5 mA)
Feedback signal (output)	—	0 – 10 V DC (invertable, max. 5 mA)
Power consumption VA	4,1	4,8
Operation mode	S3 50% cyclic duration factor
Enclosure IEC 60529	IP 54
Max. operative ambient temperature	0 °C … +50 °C
Handwheel	Change-over switch and handwheel
Mounting position	Horizontally to vertical above the valve body (any position 90° from vertical)
Stem lubricant	Klüber: Microlube GB
Weight kg	1,3
* Control speed and power consumption are 20% higher at frequency of 60 Hz.

Accessories
Additional torque switches	2 changeover contacts, potential-free, switching capacity 3A, 250 V~	—
Switch board (optional as 2 add. torque switches or 1 error message switch usable)	—	2 changeover contacts, potential-free, switching capacity 3A, 250 V~
Potentiometer	1 pc. – 1000 Ohm	1 pc. – 1000 Ohm (alternative to switch board)
Additional voltages/frequencies	24 V 50/60* Hz	—
* Control speed and power consumption are 20% higher at frequency of 60 Hz.