{"product_id":"034g2603-danfoss-ets-250-electric-expansion-valve","title":"034G2603 Danfoss ETS 250 Electric Expansion Valve","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G2603 (034G2603)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-capacity ETS 250 series electric expansion valve designed for precise liquid injection in large-scale refrigeration and air conditioning systems. Engineered for high-resolution flow control, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G2603\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a sophisticated bipolar stepper motor to provide accurate refrigerant metering, ensuring optimal evaporator utilization and stable superheat control. This straightway valve is built with a balanced design that allows for bi-directional flow, making it an ideal solution for heat pump systems and high-tonnage chillers. With its copper solder ODF connections and an IP67-rated M12 electrical interface, this valve offers the durability and sealing integrity required for the most demanding industrial cooling environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G2603\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures a robust mechanical and electrical architecture for advanced system integration:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Resolution Stepper Actuator:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe ETS 250 series provides 3810 steps of resolution, allowing for extremely fine adjustments in refrigerant flow to maintain peak system efficiency under varying loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBalanced Internal Orifice:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe balanced design ensures that the valve performance remains independent of the pressure drop across the valve, providing stable regulation even at high differential pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandardized Connectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with a 4-pin M12 male electrical connector, ensuring a secure, waterproof (IP67) connection that is compatible with Danfoss EKD and universal EEV controllers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCopper Solder ODF Connections:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures high-quality copper ends to facilitate standard brazing procedures, ensuring leak-free integration into the primary liquid line.\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\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e034G2603 (ETS 250)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\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\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolder ODF\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConnection Material\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFlow Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStraightway \/ Bi-flow capable\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Interface\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eM12, 4-Pin Male\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP67\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Working Pressure\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.5 bar (660 psig)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Refrigerants\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eR410A, R407C, R404A, R134a, R22, etc.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFull Stroke Steps\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3810\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\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\u003eCan the ETS 250 be used in heat pump applications?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G2603\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures a balanced design that supports bi-flow operation. This allows the valve to regulate refrigerant flow in both heating and cooling cycles with the same precision and capacity, eliminating the need for check valve bypass loops in many heat pump architectures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens to the valve position during a power failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ETS 250 is a stepper-motor-driven valve and will remain in its last position if power is lost. For safety in critical systems, it is recommended to use a controller equipped with a battery backup (UPS) or a capacitor module to force the valve to the closed position upon power loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a specific orientation required for the M12 connector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe M12 connector is keyed to ensure correct alignment. However, for environmental protection, it is best practice to install the valve such that the cable enters from below or from the side to prevent moisture from pooling around the connector pins.\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\u003eBrazing Safeguards:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDuring installation, the valve body must be kept cool. Wrap the valve housing in a wet cloth and ensure the flame is directed away from the actuator assembly. The internal motor and seals are sensitive to temperatures exceeding 120 Celsius; failure to protect the valve during brazing will cause permanent internal damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController Programming:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure your controller is programmed for the specific step rate and total steps (3810) of the ETS 250. An incorrect \"steps per second\" setting can lead to missed steps or motor stalls, resulting in erratic superheat and potential compressor damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMoisture Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile the electrical connection is rated IP67, ensure that the M12 cable is properly seated and the locking nut is hand-tightened. In low-temperature applications, ensure that the valve and actuator are adequately insulated to prevent excessive ice buildup, which can put mechanical stress on the electrical cable.\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":53102416003435,"sku":"034G2603","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/034g2603-z4y20uyjc2p.png?v=1776136888","url":"https:\/\/www.plcprotech.com\/products\/034g2603-danfoss-ets-250-electric-expansion-valve","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}