SAUTER AKF112F122 Rotating actuator AKF 112/113 series

AKF 112. 113: Rotary actuator with spring return for control

ball valves

How energy efficiency is improved

Torque-dependent cut-off facility for efficient usage of energy

Features

• For operating 2- and 3-way regulating ball valves for controllers with a switching output (2-/3-point

control)

• Returns to the starting position in the event of a power failure or the activation of a safety device

• Electronic torque-dependent cut-off

• Direction of rotation can be selected during fitting

Technical data

Power supply

Power supply 230 V~ ±10%, 50…60 Hz

Power supply 24 V~ ±20%, 50…60 Hz

Power supply 24…48 V= ±20%

Parameters

Torque and holding torque 7 Nm

Angle of rotation Max. 95°

Power cable 0.9 m, 0.75 mm²

(fixed to housing)

Running time for 90° motor 90 s

Running time for 90° spring 15 s

Ambient conditions

Admissible ambient temperature–32…55 °C

Admissible ambient humidity 5…95% rh

Construction

Weight 1.2 kg

Housing Two-piece

Housing material Cast aluminium

Standards and directives

Type of protection IP 54 as per EN 60529

IP 42 depending on fitting position

Protection class 230 V II as per IEC 60730

Protection class 24 V III as per IEC 60730

CE conformity according to EMC Directive 2004/108/EC EN 61000-6-2. EN 61000-6-3

Only for AKF120F120 Low-voltage directive 2006/95/EC EN 60730-1. EN 60730-2-14

Over-voltage categories III

Degree of contamination II

Overview of types

Type Power consumption Control function Voltage

AKF112F120 4.5 W, 7.0 VA 2-point 230 V~

AKF112F122 3.5 W, 5.0 VA 2-point 24 V~/24…48 V=

AKF113F122 3.5 W, 5.0 VA 3-point 24 V~/24…48 V=

Accessories

Type Description

0510240001 Assembly kit for VKR/BKR ball valves as spare part and as accessory for rotary actuators ASF

112. 113 from index B

Description of operation

2-point model:

After the power is connected, the control unit to be activated is moved in the direction of the 90° posi

tion until the power-dependent cut-off is performed (scale on actuator, max. angle of rotation 95°). In

the process, the gear unit with its brushless DC motor is stopped and blocked. If the power is cut off

or switched off, the motor releases the gear unit so that the spring turns the coupling piece back to

the 0° position.

3-point model:

The actuator turns from 0° to 90° when the power is applied to connection 2 (cable = violet), and from

90° to 0° when the power is applied to connection 3 (cable = orange). The actuator stops in the mid

dle position of the 3-point controller. If the power is cut off or is switched off by a safety device at con

nection 21 (cable = red), the gear unit is released so that the spring turns the coupling piece back to

the 0° position. In the two end positions (limit stop of damper, limit stop due to angle-of-rotation limit,

max. angle of rotation of 95° reached) or in the case of an overload, the torque-dependent cut-off is

activated (no limit switches).

Intended use

This product is only suitable for the purpose intended by the manufacturer, as described in the “De

scription of operation” section.

All related product regulations must also be adhered to. Changing or converting the product is not ad

missible.

Engineering and fitting notes

The electronic concept enables the parallel operation of multiple control ball valves with different tor

ques. However, it must be ensured that the operating voltage is within the required tolerance range.

The actuator can be fitted in any position apart from suspended. It can be plugged directly onto the

control ball valves of types VKR and BKR and is fixed by means of the mounting kit.

No auxiliary switches or potentiometers can be installed subsequently.

The angle of rotation can be limited to between 0° and 90° in 5° stages