{"product_id":"valvula-desviadora-termostatica-esbe-vtd300","title":"ESBE VTD300 thermostatic diverting valve for heating, DHW and solar","description":"\u003ch2\u003eESBE VTD300 thermostatic diverting valve for heating, domestic hot water and solar\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eESBE VTD300\u003c\/strong\u003e sends water to one outlet or the other according to its temperature, without electricity: below the change-over point it goes to port B and above it, to port A. At Q-Tech we fit it in the \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, tested in our workshop before it reaches your site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003e3-way thermostatic diverting valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eESBE VTD300 series (VTD322)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eHeating, domestic hot water (DHW), solar and zones, according to ESBE\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003ctd\u003e45, 50 or 60 °C depending on the model\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eExternal thread G 1 (DN 20)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFlow\u003c\/th\u003e\u003ctd\u003eKvs 3.6 m³ per hour\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eNone: an internal thermostat switches the port\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated and tested in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eQ-Tech pre-assembled plant room\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ESBE VTD300?\u003c\/h3\u003e\n\u003cp\u003eThe ESBE VTD300 is a 3-way thermostatic diverting valve that \u003cstrong\u003eswitches the water outlet when it reaches its set temperature\u003c\/strong\u003e, according to ESBE. An internal thermostat makes the change, and the valve works in any mounting position.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn heating, DHW or solar installations, water sometimes has to take a different route depending on whether it is cooler or warmer. The VTD300 makes that change on its own, \u003cstrong\u003ewith no sensor, no actuator and no wiring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith the 45 °C model, for example, water below 43 °C goes to port B, between 43 and 47 °C it is split between both ports and above 47 °C it goes to port A, according to ESBE. Both ports seal tightly.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePressure class\u003c\/th\u003e\u003ctd\u003ePN10\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum differential pressure\u003c\/th\u003e\u003ctd\u003e100 kPa (1 bar)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia temperature\u003c\/th\u003e\u003ctd\u003e100 °C continuously; 110 °C temporarily; minimum 0 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eChange-over tolerance\u003c\/th\u003e\u003ctd\u003e±2 °C on the 45 °C model; ±3 °C on the 50 and 60 °C models\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eScale accuracy\u003c\/th\u003e\u003ctd\u003e±1 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLeakage between ports\u003c\/th\u003e\u003ctd\u003eTight sealing from AB to A and from AB to B\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMedia\u003c\/th\u003e\u003ctd\u003eWater and water with up to 50% glycol\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnections\u003c\/th\u003e\u003ctd\u003eExternal thread G (ISO 228-1)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eDezincification-resistant brass (DZR)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDimensions\u003c\/th\u003e\u003ctd\u003eA 70 mm, B 42 mm, C 42 mm, D 46 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConformity\u003c\/th\u003e\u003ctd\u003ePressure Equipment Directive (PED), article 4.3; no CE marking\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eModel\u003c\/th\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003cth\u003eChange-over point\u003c\/th\u003e\u003cth\u003eTolerance\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eNet weight\u003c\/th\u003e\u003cth\u003eReference\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e45 °C\u003c\/td\u003e\u003ctd\u003e±2 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600100\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e50 °C\u003c\/td\u003e\u003ctd\u003e±3 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600200\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVTD322\u003c\/td\u003e\u003ctd\u003eG 1 external\u003c\/td\u003e\u003ctd\u003e60 °C\u003c\/td\u003e\u003ctd\u003e±3 °C\u003c\/td\u003e\u003ctd\u003e3.6\u003c\/td\u003e\u003ctd\u003e0.45 kg\u003c\/td\u003e\u003ctd\u003e31600300\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum differential pressure of 1 bar\u003c\/strong\u003e, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eWith 30 to 50% glycol, maximum output drops by 30 to 40%, according to ESBE.\u003c\/li\u003e\n\u003cli\u003eThe change-over point is fixed; ESBE offers VTD911 replacement thermostats at 45, 50, 60 and 70 °C, which are not on this page.\u003c\/li\u003e\n\u003cli\u003eESBE recommends fitting shut-off valves on the connections to make maintenance easier.\u003c\/li\u003e\n\u003cli\u003eNo CE marking: it is pressure equipment under article 4.3 of the PED.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eWhen to choose it\u003c\/th\u003e\u003cth\u003eKvs (m³ per hour)\u003c\/th\u003e\u003cth\u003eMaximum continuous water temperature\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-solar-vts520-altas-temperaturas\"\u003eESBE VTS520 for solar thermal\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you need to mix water to deliver solar DHW at a fixed temperature\u003c\/td\u003e\u003ctd\u003e3.0 to 3.5\u003c\/td\u003e\u003ctd\u003e110 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/valvula-mezcladora-termostatica-esbe-vta320-antiescaldaduras\"\u003eESBE VTA320 and VTA520 for DHW\u003c\/a\u003e\u003c\/td\u003e\u003ctd\u003eIf you need to limit the hot water temperature at the taps\u003c\/td\u003e\u003ctd\u003e1.2 to 3.5\u003c\/td\u003e\u003ctd\u003e95 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich temperature should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe point at which you want the water to change outlet: 45, 50 or 60 °C. Tell us about your installation and we will tell you the model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference from a mixing valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA mixing valve blends hot and cold water to give one temperature. A diverting valve does not mix: it sends the water to one port or the other according to its temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the change-over point be changed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, by replacing the thermostat with an ESBE VTD911 kit of another temperature. ESBE states that the change is easy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need maintenance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder normal conditions, no, according to ESBE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is not advisable: a professional should install it, following ESBE's instructions. Q-Tech delivers it fitted in the plant room or installs it with an Expert Technician.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it \u003cstrong\u003ein stock in Málaga\u003c\/strong\u003e and dispatch it as soon as we confirm your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech fits the VTD300 in the \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003epre-assembled plant room\u003c\/a\u003e: assembled and \u003cstrong\u003etested in our workshop\u003c\/strong\u003e, it arrives ready to connect. You can book \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e or a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e to choose the model. See also our \u003ca href=\"\/en-en\/collections\/solar-termica\"\u003esolar thermal range\u003c\/a\u003e or message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/3774A292BDB3394CE30AD6ECFF9E548952936BF38C45F233DC33421F82BF190D\/05c474a55a544fe0b69b56e1fdbb3fa0\/pdf\/media\/47b26288efb54926bf71982e84559b65\/VTD300_en_L_LR.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESBE VTD300 data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/0D30EAD07DFBEB6725148944A53B3BBECFE690061D0B5F8AF68119C504540A0E\/04c884b18c574499acc01a66cbc5251e\/pdf\/media\/92875a16bcbb42ab90e6cefe1bd7195f\/Anv_VTD300_98140408_ver%20E_lr.pdf\" target=\"_blank\" rel=\"noopener\"\u003eVTD300 installation instructions (multilingual)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/esbe.eu\/storage\/2A821A4D8C08D0D60EAC8208547582482D69B8965B765A9315610AB8B192E62A\/5467c0179c09428b9c0fc0e945a420b0\/pdf\/media\/2bb608aca05345b19387843856edaf44\/DoC_VTD300_E.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDeclaration of conformity\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e\n","brand":"ESBE","offers":[{"title":"VTD322 G 1 · change-over at 45 °C (31600100)","offer_id":59035881505112,"sku":"SE-CO10445","price":186.33,"currency_code":"EUR","in_stock":true},{"title":"VTD322 G 1 · change-over at 50 °C (31600200)","offer_id":59035881537880,"sku":"SE-CO10446","price":186.33,"currency_code":"EUR","in_stock":true},{"title":"VTD322 G 1 · change-over at 60 °C (31600300)","offer_id":59035881570648,"sku":"SE-CO10447","price":186.33,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/esbe-vtd322-desviadora-termostatica.webp?v=1793795444","url":"https:\/\/q-tech.es\/en-en\/products\/esbe-vtd300-thermostatic-diverting-valve","provider":"Q-Tech ® ","version":"1.0","type":"link"}