Description
HONEYWELL ML7421B8012-E 24V 50/60HZ DIRECT COUPLED ELECTRIC VALVE ACTUATOR
Full Set
HONEYWELL ML7421B8012-E 24V 50/60HZ DIRECT COUPLED ELECTRIC VALVE ACTUATOR +V5088A1005 DN100 -4'' 2 way valve
HONEYWELL ML7421B8012-E 24V 50/60HZ DIRECT COUPLED ELECTRIC VALVE ACTUATOR + V5088A1013 DN125 -5'' 2 way valve
HONEYWELL ML7421B8012-E 24V 50/60HZ DIRECT COUPLED ELECTRIC VALVE ACTUATOR + V5088A1021 DN150 -6'' 2 way valve
What is a Modulating Control Valve?
A modulating control valve is an automated valve that is used to control the amount of flow in a system or process. They go beyond simple shutoff or isolation (on/off) and actually allow precise control of the flow rate. The actuators on these valves use feedback and control signals to accurately open and close the valve.
Note
ML7421B is for big valve (4'' Valve and above).Torque is 1,800Nm. ML7420A8088A is for 1.5'' and below. Torque is 600Nm.
Note
Replaced ML7421B1032
Replaced M7421B1006
GENERAL
The ML7421A / ML7421B actuators are designed for modulating control, accepting 0(2)...10v or 4...20mA input
signal, and providing feedback signal 2...10 Vdc only. They operate Honeywell’s standard valves in heating, ventilation,
and air conditioning (HVAC) applications.
FEATURE
Easy and quick installation
No separate linkage and adjustments required
Low power consumption and maintenance-free
Self-adaption function
Force-limiting end stops
Manual operation knob
0(2)~10 Vdc input and 2~10 Vdc position feedback
Direct/ Reverse action adjustable
Selectable stroke position when signal failure
Corrosion-resistant design
SPECIFICATION
Temperature
Ambient operating -10~+50℃ at 5~95% r.h.
Ambient storage -40...+70 °C at 5...95% r.h.
Medium temperature 150 °C max. (220 °C with
High-Temperature kit)
Signals
Signal input y=0(2)~10 Vdc or 4~20 mA
Input impedance for voltage Ri=100 KΩ
for mA Ri=500Ω
Position feedback signal x=2~10Vdc
Output impedance 1 KΩ max.
Output load 1 mA max.
Safety
Protection class III as per EN60730-1
Protection standard IP54 as per EN60529
Flame retardant housing V0 as per UL94
(with metal cable gland)
Material
Cover ABS-FR
Yoke and Base Aluminum die-cast
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