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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