{"product_id":"baxi-sb-4x-circulador-compacto-acs","title":"Baxi SB-4X compact brass DHW recirculation circulator","description":"\u003ch2\u003eCompact Baxi circulator for hot water recirculation in small loops\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaxi SB-4X\u003c\/strong\u003e is Baxi's compact circulator for \u003cstrong\u003edomestic hot water recirculation\u003c\/strong\u003e in small systems: brass body, canned rotor motor and a consumption of only 5 W. Q-Tech integrates it into its \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, built and tested in the workshop together with the cylinder and the return valves, so that only the final connection is left on site.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eCompact canned rotor circulator for DHW recirculation\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eBaxi SB-4X (reference 7720450)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eDomestic hot water recirculation loops in homes and small systems, drinking water only\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum head\u003c\/th\u003e\u003ctd\u003e1 m (Baxi catalogue curve)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower input\u003c\/th\u003e\u003ctd\u003e5 W (4 to 6 W depending on the operating point)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eR ½ with unions, with pre-fitted shut-off valve and check valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eSingle-phase 230 V\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003eIntegrated into a pre-assembled plant room or installed by an on-site Expert Technician (\u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003ePre-Montaje Avanzado\u003c\/a\u003e)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the Baxi SB-4X?\u003c\/h3\u003e\n\u003cp\u003eThe Baxi SB-4X is a compact Baxi circulator for domestic hot water recirculation circuits, with a brass pump body and a 5 W canned rotor motor. It keeps the water moving around the return loop. It is installed after the draw-off points.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn a home or a small system without recirculation, the water cools down in the pipe and the user waits with the tap open until it runs hot. The SB-4X keeps the water moving around the return loop, so \u003cstrong\u003ehot water reaches the tap sooner\u003c\/strong\u003e, with very low power consumption.\u003c\/p\u003e\n\u003cp\u003eAn oversized circulator in a small loop uses more energy and makes more noise; an undersized one does not reach the last tap. Q-Tech checks the length and flow of the loop before choosing between the SB-4X and the SB Series.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eMaximum operating pressure\u003c\/th\u003e\u003ctd\u003e10 bar\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum operating temperature\u003c\/th\u003e\u003ctd\u003e65 °C (up to 70 °C for short periods of 2 hours)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum ambient temperature\u003c\/th\u003e\u003ctd\u003e40 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eSingle-phase 230 V\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRated current\u003c\/th\u003e\u003ctd\u003e0.05 A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower input\u003c\/th\u003e\u003ctd\u003e5 W (4 to 6 W)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSpeed\u003c\/th\u003e\u003ctd\u003e3,000 rpm, single speed\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum head\u003c\/th\u003e\u003ctd\u003e1 m, according to the Baxi catalogue curve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePipe connection\u003c\/th\u003e\u003ctd\u003eR ½, with unions; pre-fitted shut-off valve and check valve\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum water hardness\u003c\/th\u003e\u003ctd\u003e36 °f (Baxi manual)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMotor\u003c\/th\u003e\u003ctd\u003eCanned rotor, quiet operation\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePump body\u003c\/th\u003e\u003ctd\u003eCorrosion-resistant brass; insulating casing\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eElectrical protection\u003c\/th\u003e\u003ctd\u003eIP 42\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003ctd\u003e1.3 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBaxi reference\u003c\/th\u003e\u003ctd\u003e7720450\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\u003eDrinking water only\u003c\/strong\u003e, in domestic hot water recirculation circuits up to 10 bar and 65 °C.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum water hardness of 36 °f\u003c\/strong\u003e according to Baxi's manual; harder water should be treated first.\u003c\/li\u003e\n\u003cli\u003eDesigned for small loops: its maximum head is 1 m.\u003c\/li\u003e\n\u003cli\u003eFitted on the loop return, after the draw-off points, with an R ½ union connection.\u003c\/li\u003e\n\u003cli\u003ePlant room ambient temperature up to 40 °C.\u003c\/li\u003e\n\u003cli\u003eIt is not a heating circulator.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIf the loop is long or serves a building, it needs more flow and head: the \u003ca href=\"\/en-en\/products\/baxi-serie-sb-bomba-circuladora-acs\"\u003eBaxi SB Series\u003c\/a\u003e reaches up to 9.5 m³ per hour and 9 m.\u003c\/li\u003e\n\u003cli\u003eIf the circuit is for heating rather than domestic hot water, Baxi offers the high-efficiency \u003ca href=\"\/en-en\/products\/bomba-circuladora-baxi-quantum-maxi-alta-eficiencia\"\u003eQuantum MAXI\u003c\/a\u003e range.\u003c\/li\u003e\n\u003cli\u003eIf the water is harder than the maximum, water treatment is needed first.\u003c\/li\u003e\n\u003cli\u003eIf you are looking for electronic control or time programming, the SB-4X runs at a fixed speed; see the \u003ca href=\"\/en-en\/collections\/bombas-recirculadoras\"\u003erecirculation pumps\u003c\/a\u003e collection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat system is the SB-4X for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor small domestic hot water recirculation loops, such as those in a home or a shop. For larger loops, the SB Series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere is it installed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn the return of the hot water loop, after the draw-off points. It has an R ½ connection with a pre-fitted shut-off valve and check valve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much power does it use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbout 5 W, between 4 and 6 W depending on the operating point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it noisy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBaxi describes it as quiet: it has a canned rotor and no fan.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe have it in stock at our warehouse; if no units are left when you order, we order it urgently and inform you of the updated lead time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBaxi states that it must be installed by qualified personnel. Q-Tech can integrate it into its plant room or install it on your site.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eWith the \u003cstrong\u003epre-assembled plant room\u003c\/strong\u003e, Q-Tech fits the SB-4X in its workshop with the cylinder, valves and controls, and delivers it tested and \u003cstrong\u003eready to connect\u003c\/strong\u003e: only the final connection is left on site. More information on \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003ePre-Montaje Avanzado\u003c\/a\u003e and the \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly\u003c\/a\u003e service.\u003c\/p\u003e\n\u003cp\u003eIf the system already exists, an \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e replaces or integrates the circulator. To choose between the SB-4X and the SB Series with your loop data, you can book a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003etechnical call\u003c\/a\u003e (a paid service). See also the \u003ca href=\"\/en-en\/collections\/bombas-recirculadoras\"\u003erecirculation pumps\u003c\/a\u003e collection 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\u003cp\u003e\u003ca href=\"https:\/\/www.baxi.es\/profesionales\/productos\/complementos-componentes\/circuladores\/sb\" target=\"_blank\" rel=\"noopener\"\u003eSB Series and SB-4X on baxi.es: installation manual, declaration of conformity and price catalogue (in Spanish)\u003c\/a\u003e\u003c\/p\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":"BAXI","offers":[{"title":"Default Title","offer_id":59106415804760,"sku":"SE-BR07300","price":197.64,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/baxi-sb-4x-circulador-compacto-acs.webp?v=1794497433","url":"https:\/\/q-tech.es\/en\/products\/baxi-sb-4x-compact-dhw-circulator","provider":"Q-Tech ® ","version":"1.0","type":"link"}