DC 24V 1/2″ Electric Solenoid Valve COM54 ,R18

DescriptionWhen you are designing industrial IoT agriculture nodes or setting up automated dispensing systems, you need reliable electromechanical actuators. This 24V DC Solenoid Valve allows your microcontrollers to turn standard water pipes on and off on command, stepping your hardware into the realm of physical automation.Whether you are prototyping a smart watering dashboard for a commercial farm, or demonstrating fluid actuation during the Bootcamp, this valve provides rugged, predictable performance.The 24V Industrial AdvantageWhile 12V components are common in hobbyist projects, 24V DC is the gold standard for industrial control systems (PLCs). Why? Because at 24 Volts, the solenoid draws half the current (Amps) to do the exact same amount of magnetic work as a 12V valve. Lower current means you can run thinner, cheaper wires over much longer distances across a farm or warehouse without experiencing severe voltage drops.Understanding “Normally Closed” (NC) LogicFor fluid control, a Normally Closed (NC) valve is a vital failsafe. When the valve has zero electrical power, an internal spring forces the plunger down, completely blocking the water. If your power grid goes down, your code crashes, or a wire gets accidentally severed, the valve automatically snaps shut. It only allows water to pass when an active 24V current is pulling the plunger upward. This inherently prevents catastrophic accidental flooding.Crucial Note: The Pressure RequirementThis is a servo-assisted diaphragm valve. It relies on the actual pressure of the incoming municipal water line to help push the thick internal rubber diaphragm open. It requires a minimum water pressure of 0.02 Mpa (about 2.9 PSI) to function correctly. It will not work efficiently on low-pressure, gravity-fed systems (like a standard unpressurized rain barrel).How to Drive It with an Arduino or ESP32You cannot power this valve directly from a microcontroller. You must use an intermediate component, such as a 5V Relay Module or a high-power MOSFET (like the IRF3205), to switch the 24V power supply. Hardware Pro Tip: Solenoids are massive inductive coils. Always ensure your switching circuit includes a flyback diode wired in parallel across the valve’s terminals to protect your electronics from massive high-voltage spikes when the magnetic field collapses!Key Features:Standard 1/2″ Threads: The 1/2″ male threaded inlet and outlet make it incredibly easy to adapt to standard PVC plumbing and flexible garden hoses.Internal Debris Filter: Features a built-in metal mesh screen on the inlet side to prevent dirt, rocks, and pipe scale from jamming the internal diaphragm.Spade Connectors: The electrical terminals utilize standard male quick-disconnect spade terminals for fast, secure, and solderless wiring.Technical Specifications:Operating Voltage: 24V DCValve Type: Diaphragm (Servo-assisted)Default State: Normally Closed (NC)Inlet/Outlet Port Size: 1/2″ Male ThreadWorking Pressure: 0.02 Mpa – 0.8 MpaFluid Temperature Range: ~1°C to 75°CSuitable Media: Water and low-viscosity fluids (Not suitable for acid, gas, or thick oils)Ideal Applications:Industrial smart agriculture and automated greenhouse irrigationAutomated touchless sinks and commercial fluid dispensingLong-distance IoT fluid control systems requiring 24V logicMechatronics and plumbing automation educational labs