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Products - ACTUATORS For rotary mixers, reversible and ball valves


for 3-way and 4-way rotary mixing valves

FIRŠT actuators, series S11 MOD X, are modulating actuators designed for operating 3-way and 4-way mixing valves (DN 15 - DN 50).

  • The FIRŠT S11 MOD X AC/DC actuators have defined direction of rotation (90° rotating angle).
  • Actuators are available with cable and molex connection with manual control handle and are recommended for mixing applications.

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s11 modx dimenzije

S11 MOD X AC/DC, for 3-way and 4-way mixing valves (90° rotation)

Code Type Voltage Rotation time Connection Max. torque [Nm] Weight [kg]
S11 MOD X 20758-K AC/DC24 V AC/DC75s/90°Cable 10 Nm0,44 kg
12948 S11 MOD X 20758-M AC/DC 24 V AC/DC
75s/90° Molex  10 Nm 0,36 kg
Modulating signal: 0...10 VDC, 4...20 mA
Output signal: 0... 10 VDC, max < 0,5 mA/ 10V
Supply voltage: 24 VAC , 50/60 Hz +/- 20%
24 VDC +/-10%
Rotation time: 75s/90°
Power consumption: 2 W (operation), 0,4 W (stand by),
5VA for transformer sizing (class 2 power sources)
Max.Torque: 10 Nm
Protection class: II
Enclosure rating: IP44 (cable connection),
IP44 (specially sealed Molex cable)
Connection: cable 1,5 m, 4x0,5mm ² / Molex connection
Direction of rotation: defined CW/CCW (90°)
Manual operation: with manual control handle
Position indicator: handle with position indicator
Media temperature: +2°C..+110°C
Ambient temperature: 0°C..+55°C
Storage temperature: -10°C..+70°C
Humidity: 0%..80% R.H. (non condensed)


Actuators S11 - MOD X AC/DC are recommended for mixing or diverting applications with FMV 130E, FMV 140E nad FMV H-151E valves. 

Actuators can also be used with 2-way, 3-way and 6-way ISO 5211 F04 valves.

Installation position:

s11 ct installation position

Electrical connection:

electrical connection s11modx

Installation examples:

instalation examples s11modx

Features and options:

Power supply: 24V AC/DC
Control signal: 0,16-9,84 V (0-20mA) ; 2-9,84 V (4-20mA) ; 0,16-4,88 V; 5,12-9,84 V
Output signal: 0-10 VDC, max <0,5mA/10V
Connection: cable 1,5 m (4x0,5mm2 / Molex connector)
Mounting kits: for assembeling on mixing valves of other manufacturers.


Code Image Designation Data Sheet
10755 Cable connector with molex IP44 3x0.75mm 2 l=1,7m (for S11 2P & S11 3P) Data sheet IP44 Molex cable connector
10756 Cable connector with molex IP44 4x0.5mm 2 l=1,7m (for S11 MOD X) Data sheet IP44 Molex cable connector
50103 Adapter kit for valves: firšt mixing valves series FMV G131/141, ESBE, Barberi, LK, ACOSO, Evenes, Seltron Data sheet euronorm M8
58104 Adapter kit for valves: firšt mixing valves series FMV130E, FMV 140E and FMV H 151E Data sheet euronorm M6
58106 Adapter kit for ISO 5211 F04 (for valves: FBV 661 ISO F04 DN15)
Data sheet ISO 5211 F04