{"product_id":"danfoss-034g0508-ets-series-electric-expansion-valve","title":"Vanne d'expansion électrique série ETS Danfoss 034G0508","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G0508 (034G0508)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eby Danfoss is a high-precision electric expansion valve designed for precise liquid injection in air conditioning and refrigeration systems. Engineered for industrial-scale thermal management, this bi-flow component is critical in large-scale data center cooling, commercial HVAC, and food processing plants. By leveraging an advanced stepper motor drive, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G0508\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures optimal evaporator utilization and stable superheat control even under fluctuating load conditions. This precision directly translates to enhanced energy efficiency and a significant reduction in compressor downtime, making it a cornerstone for mission-critical cooling infrastructure where thermal stability is non-negotiable.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e034G0508\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebelongs to the ETS Colibri or similar high-performance stepper motor valve series. It features a sophisticated drive mechanism that converts electrical pulses into precise linear motion, allowing for fine-tuned refrigerant flow control. The integrated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIP67\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eenclosure rating ensures the internal motor and electronics are fully protected against dust and temporary immersion, which is vital for environments with heavy condensation. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBi-flow\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecapability allows the valve to manage refrigerant flow in both directions, making it ideal for heat pump applications or systems requiring reversible cycles without additional check valves. The 2-meter factory-fitted cable provides a reliable electrical interface with minimal signal attenuation.\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\u003eAttribute\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\u003e034G0508\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\u003eProduct Type\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\u003eFlow Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBi-flow\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCable Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 m (6.6 ft)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEnclosure Rating\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\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\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to 65 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRefrigerants\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eR410A, R407C, R404A, R134a, R22, R1234ze\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax. Working Pressure\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\u003eActuator Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStepper Motor\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\u003eHow do I verify if the 034G0508 is compatible with my existing PLC or controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe valve requires a bipolar stepper motor driver. Ensure your controller can output the correct current (typically 100 mA RMS) and step rate (approx. 150 steps per second) required by Danfoss ETS series specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary benefit of the Bi-flow design in this specific model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Bi-flow design allows the valve to maintain identical flow characteristics and high-precision control in both heating and cooling modes, eliminating the need for complex piping and external solenoid valves in reversible systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the signs of a failing 034G0508 expansion valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCommon indicators include erratic superheat readings, \"hunting\" (rapid fluctuations in pressure), or the valve failing to close completely (migration of refrigerant during standstill). Ensure the driver is calibrated before replacing the hardware.\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 Protocol:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDuring installation, the valve body must be protected against excessive heat. Use a wet cloth or heat-sink paste to wrap the valve body, ensuring the internal temperature does not exceed 100 deg C. Direct flame contact with the motor housing will cause permanent internal seal failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Orientation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor optimal oil return and to prevent liquid slugging within the valve mechanism, install the valve with the actuator pointing upwards (within 90 degrees of vertical). Avoid installing the valve upside down as this promotes the accumulation of debris in the motor compartment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring \u0026amp; Noise Suppression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse shielded cables for the stepper motor connection if the distance to the controller exceeds 3 meters. Ensure the shield is grounded only at the controller end to prevent ground loops, which can cause \"missed steps\" in the motor and lead to inaccurate flow control.\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":53102419378539,"sku":"034G0508","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/034g0508-p0lty22u5zy.png?v=1776136880","url":"https:\/\/www.plcprotech.com\/fr\/products\/danfoss-034g0508-ets-series-electric-expansion-valve","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}