38059-Satchwell Inter. Guide 05

Actuators (cont)
MVL
Pulsed and
Proportional Linear
Valve Actuators
(700N & 1500N)
ST
Rotary Valve
Actuators
(100N)
MDL
Damper Actuators
MVL actuators have linear characteristic (linear ratio
between input signal and valve coupling joint movement).
They are used for fluid control in air-conditioning-heating
systems and in industrial processes.
Two different control types are available:
- floating (3-point)
- proportional (dc voltage or current)
They are designed for direct coupling on all Controlli
globe valves (add AG31 linkage for V.B valves) and they
may also be used easily on valves of other manufacturers
with 0...45 mm stroke for floating action models or
10...45 mm stroke for proportional action models.
INSTALLATION DETAILS
Stroke - MVL2/4 0...45 mm, MVL5 10...45 mm
Running speed - 1.33 s/mm
Thrust - MVL 1500 N, MVL.A/C 700 N
Protection class - IP 55
ST actuators are used to control VFG butterfly valves in
heating, refrigeration and hydraulic plants.
INSTALLATION DETAILS
Angular travel - 90°
Timing - 360 secs
Torque - 10 Nm
Radial force - 100 N (max)
Protection class - IP 20
Shaft - Ø 20mm with 18x6 key
The MDL actuators are used in civil and industrial systems
for driving dampers and other devices that require the
control of an angular position within a maximum angle of
160° (e.g. for adjusting the flame n liquid or gas burners).
PRODUCT SELECTION Actuators
52
Mod. Input Stroke/Time(s) Supply Input Control
16.5 25 45 Signal
Raise Lower Actuators
MVL26 22 33 60 230 V floating
MVL46 22 33 60 24 V floating
MVL46A 22 (16) 33 (25) 60 (45) 24 V floating
MVL46C 22 (16) 33 (25) 60 (45) 24 V floating
Proportional Actuators
MVL56 22 33 60 24 V prop. (V or mA)
MVL56A 22 (16) 33 (25) 60 (45) 24 V prop. (V or mA)
MVL56C
Data Sheet - MVL
22 (16) 33 (25) 60 (45) 24 V prop. (V or mA)
Remark: MVL A/C models are fitted with spring return device.
Values in brackets indicate the spring return time.
A – spring return retracts (valve stem up)
C – spring return extends (valve stem down)
ACCESSORIES
DMVL – two auxiliary microswitches (SPDT) adjustable, rated 230V, 10 (3) amp.
MVLPA2 – potentiometer for MVL2 (pcb with 1KΩ auxiliary pot.)
MVLPA4 – potentiometer for MVL4 ”
MVLPA4M – potentiometer for MVL46A and MVL46C ”
245 – stem heater 24V (for valve applications with fluids below –10°C)
AG31 – linkage kit for fitting actuator to VMB and VSG valves
Model Supply Control signal
ST404 24Vac 2 positions, 3 points from controller
ST405 230Vac ”
Data Sheet - VF-ST400
Model Stroke time (s) Torque Power Control
90°C 160°C (Nm) supply signal
MDL22 15 27 6 (8) 230Vac 3-point
MDL24 45 80 20 (27) ” ”
MDL26 60 107 30 (40) ” ”
MDL42 15 27 6 (8) 24Vac 3-point
MDL44 45 80 20 (27) ” ”
MDL46 60 107 30 (40) ” ”
MDL52 15 27 6 (8) 24Vac proportional
MDL54 45 80 20 (27) ” ”
MDL56 60 107 30 (40) ” ”
Data Sheet - MDL
INSTALLATION DETAILS
Action - direct/reversing
Angular travel - 90° preset, 0...160° adjustable (55...160° adjustable - MDL5-)
Thrust - 500 N max
Protection class - IP 55
ACCESSORY
AF22 – coupling for VFG butterfly valves.