{"product_id":"ets-50-034g1709-danfoss-electric-expansion-valve","title":"ETS 50 (034G1709) Danfoss Electric Expansion Valve","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eETS 50 (034G1709)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-resolution, electronically operated expansion valve (EEV) engineered for precision refrigerant mass flow control in industrial air conditioning and refrigeration systems. As a central component in high-efficiency thermal management, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDanfoss 034G1709 (034G1709)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a bipolar stepper motor to provide accurate needle positioning, which is critical for maintaining stable superheat (SH) control and optimizing energy efficiency. This model features a straightway design with symmetric 1 1\/8 inch ODF connections, making it a robust choice for B2B industrial chillers, heat pumps, and close-control units where fast response and high reliability are paramount.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe technical architecture of the 034G1709 is designed for seamless integration and long-term durability. It features bi-metal (steel\/copper) solder connections that simplify the installation process while protecting the precision internal motor from excessive heat conduction. The electrical interface is a standardized M12 4-pin male connector, providing a vibration-proof and moisture-tight link to the electronic controller. Rated at IP67, the valve's enclosure is fully protected against dust and water ingress, ensuring reliable performance in environments with heavy condensation or frequent defrost cycles. The internal balanced needle design supports bi-flow operation, allowing for consistent flow regulation in both heating and cooling modes.\u003c\/p\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\u003eETS 50 (034G1709)\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\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eElectric Expansion Valve (EEV)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInlet\/Outlet Size\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 1\/8 in x 1 1\/8 in Solder 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\u003eBi-metal (Steel\/Copper)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDirection\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 Connection\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 (PS)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.5 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFluid Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eR410A, R407C, R404A, R134a, R22\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 kg\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\u003eWhy are bi-metal connections used on the 034G1709?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe bi-metal design allows for standard copper-to-copper brazing at the pipe ends, while the stainless steel portion acts as a thermal barrier, protecting the internal stepper motor and precision needle seals from high temperatures during soldering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat control driver is required for this valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G1709\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erequires a bipolar stepper motor driver (such as the Danfoss EKD or EKE series) that provides a constant current of approximately 100 mA RMS and is capable of driving 2625 steps for a full-stroke operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this valve be used in reversible heat pump systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the ETS 50 series features a balanced needle and cage design that ensures identical mass flow accuracy in both directions, eliminating the need for external check-valve loops in reversible circuits.\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 Safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDuring the installation process, it is mandatory to wrap the valve body in a wet cloth. Ensure the temperature of the valve housing remains below 100 Celsius to prevent permanent damage to the motor magnets and the internal PEEK seat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eM12 Cable Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen connecting the M12 4-pin cable, ensure the nut is hand-tightened to compress the O-ring seal properly for IP67 integrity. Form a drip loop in the cable to prevent water from tracking directly into the electrical connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController Calibration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUpon initial commissioning, the controller must perform an initialization run (overdrive) of at least 2625 steps to establish the mechanical \"zero\" (fully closed) position. Failure to calibrate will lead to inaccurate flow regulation and potential superheat hunting.\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":53102415577451,"sku":"034G1709","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/034g1709-ekcvwlbhrp5.png?v=1776136884","url":"https:\/\/www.plcprotech.com\/products\/ets-50-034g1709-danfoss-electric-expansion-valve","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}