HONEYWELL ML7421A8035-E 24V 50/60HZ DIRECT COUPLED ELECTRIC VALVE ACTUATOR
Note
ML7421A8035 can be used up to a max 3'' valve only
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
1) ML7421A is for big valve.Torque is 1,800Nm. ML7420A8088A is for 1.5'' and below. Torque is 600Nm.
2) Pls note that there is no performance warranty on ML7420A with V5011P1038 (2'' 2-Way). It may not be strong enough to close the valve after a while.
3) All modulating actuators/thermostats are automatically 24Vac. This is industry standard.
Note
Replaced ML7421A1032 model
Replaced ML7421A3004 model
Replaced ML7421A1008 model
Complete Set
HONEYWELL V5013P1028 DN50 2'' 3-WAY BRONZE AHU VALVE C/W ML7421A8035-E MODULATING ACTUATOR
HONEYWELL V5329A2077 DN65 2-1/2'' 3-WAY VALVE + ML7421A8035-E 24V ELECTRICAL VALVE ACTUATOR
HONEYWELL V5329A 2-1/2'' 3-WAY CI AHU VALVE C/W ML7421A (1,800N) MODULATING ACTUATOR * Note: ML7984A (710N) is not recommended for 2.1/2'' 3 way valve. Torque not strong enough.
V5329A/ML7421A- 3'' 3 Way valve c/w mod actuator
V5328A/ML7421A - 3'' 2 way valve c/w mod actuator
New Combination With New Valve Types
The valve for 3'' 3-Way is V5GV3W080F and the valve for 2-Way is V5GV2W080F. You can still use back the same ML7421A Actuator
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
