{"product_id":"danfoss-ev260b-032u8057-proportional-nc-solenoid-valve","title":"DANFOSS EV260B 032U8057 Proportional NC Solenoid Valve","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057 (032U8057)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-precision 2\/2-way proportional solenoid valve from the Danfoss EV260B series, engineered for stepless flow regulation in industrial automation and process control. Utilizing a 6 mm orifice and a specialized proportional actuator, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows for infinite adjustment of the flow rate based on the electrical input signal, rather than simple on\/off operation. The valve body is constructed from durable brass with high-grade PTFE sealing material, making it suitable for a variety of fluids including water, oil, and compressed air. Designed for high-reliability applications, this Normally Closed (NC) valve ensures precise control in dosing systems, cooling loops, and mixing applications where maintaining a specific flow or pressure is critical to process integrity.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe EV260B series hardware is optimized for linear flow characteristics and industrial endurance:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProportional Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnlike standard solenoid valves, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a specialized B-type actuator (13.5 mm system) that translates variable electrical current into proportional plunger travel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNormally Closed (NC) Function:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe valve remains closed when de-energized, providing a fail-safe position for critical fluid circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePTFE Sealing Technology:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-performance PTFE seals offer excellent chemical resistance and thermal stability, allowing for reliable operation across diverse fluid groups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eServo-Operated Mechanics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEmploys a servo-driven principle that utilizes the differential pressure of the medium to assist in valve actuation, ensuring smooth and stable flow regulation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirectional Accuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an embossed 1-way arrow on the brass body to ensure correct single-flow installation, preventing backflow issues and mechanical chatter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEV260B 6B G 38T NC000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e032U8057\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDanfoss\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFunction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2\/2-way Normally Closed (NC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperation Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProportional (Stepless)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrifice Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDifferential Pressure Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 to 10 bar (7.25 to 145 psi)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBody Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeal Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePTFE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAmbient Temperature Max\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eActuator System\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13.5 mm (Type B)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this valve require a minimum differential pressure to operate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. As a servo-operated valve, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erequires a minimum differential pressure of 0.5 bar (approx. 7.25 psi) to function correctly. If the system pressure is below this threshold, the valve may not open fully or provide stable proportional control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of signal is required to control the proportional function?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis typically controlled via a Pulse Width Modulation (PWM) signal or a 4-20 mA \/ 0-10V signal through a dedicated Danfoss signal converter (such as the ECI electronic controller). The variable current changes the magnetic force to position the plunger accurately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this valve suitable for high-viscosity fluids?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe EV260B series is optimized for clean fluids. While it can handle light oils, high-viscosity liquids may affect the response time and the linearity of the proportional control. For maximum precision, the fluid should be free of debris that could interfere with the 6 mm orifice or the servo mechanism.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFluid Filtration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo protect the 6 mm orifice and the sensitive proportional mechanism, it is highly recommended to install a 50-micron filter upstream of the valve. Particles in the fluid can cause the valve to \"stick\" or prevent it from sealing completely in the NC position.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrientation and Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor optimal performance, mount the valve with the coil in a vertical position (actuator facing up). This prevents sediment from settling in the armature tube and reduces wear on the internal guiding parts during proportional movement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePID Tuning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen integrating the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e032U8057\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einto a control loop, ensure the PID parameters of your PLC or controller are tuned to account for the servo-operated response time. Excessive \"gain\" in the control signal can cause the valve to hunt or oscillate, potentially leading to premature mechanical fatigue.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Danfoss","offers":[{"title":"Default Title","offer_id":53102417445227,"sku":"032U8057","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/032u8057-30abl4yem5c.png?v=1776136876","url":"https:\/\/www.plcprotech.com\/products\/danfoss-ev260b-032u8057-proportional-nc-solenoid-valve","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}