WATERRO Electromagnetic valve 1/2″ – 220V AC – NC – SS304 The WATERRO 1/2″ electromagnetic valve (220V AC, normally closed, SS304) is a professional, industrial-grade electromechanical assembly designed for fully automated fluid flow control in water treatment systems, commercial filtration units and production process lines. The valve features a normally closed (NC — Normally Closed) configuration, meaning that it remains securely closed without power, completely blocking flow, and opens only when the coil is supplied with 220V AC control voltage. The body is made entirely of premium AISI 304 stainless steel (SS304), ensuring excellent resistance to corrosion, oxidation and mechanical stress under high-pressure conditions. The carefully designed diaphragm mechanism provides immediate response, high operating precision and maximum service life during intensive water treatment, dosing and filtration cycles. Key advantages Premium AISI 304 stainless steel: The body ensures maximum mechanical strength and complete resistance to aggressive water chemistry. Safe normally closed (NC) operation: In the event of power loss or emergency system shutdown, the valve closes automatically, preventing uncontrolled leakage and overflow risks. Standard 220V AC industrial control: The high-efficiency solenoid coil ensures immediate, stable and safe valve operation from any automation control panel. Universal 1/2″ connection: The compact dimensions allow easy integration into reverse osmosis systems, dosing units and local filtration pipeline systems. Absolute leak tightness: High-quality internal seals ensure complete closure without leakage and provide stable pressure retention in the closed position. Easy installation and servicing: The standard threaded connection enables fast, leak-tight integration into pipelines and easy access to the assembly during maintenance. Technical specification Parameter Value Brand / Model WATERRO Electromagnetic valve 1/2″-220V-NC-SS304 Connection size 1/2″ Threaded connection Initial state Normally closed (NC) Supply voltage 220V AC (50/60 Hz) Body material AISI 304 stainless steel (SS304) Application Process automation, dosing systems, water filters, water treatment Compatible fluids Purified water, process water, neutral and mildly aggressive fluids