{"product_id":"grundfos-ups-50-60-4-f-b-280-bronze-circulator-pump-415v-96402040-4851","title":"Grundfos UPS 50-60\/4 F B 280 Bronze Circulator Pump 415V 96402040 #4851","description":"\u003cdiv style=\"max-width: 900px; margin: 0 auto; padding: 20px; line-height: 1.6;\"\u003e\n\n\u003ch2\u003eGrundfos UPS 50-60\/4 F B 280 – Bronze Circulator Pump 415V (96402040) #4851\u003c\/h2\u003e\n\n\u003cp\u003e\nThis listing is for a \u003cstrong\u003eGrundfos UPS 50-60\/4 F B 280\u003c\/strong\u003e bronze-bodied circulator pump. It is a \u003cstrong\u003ethree-speed, glandless canned-rotor circulator\u003c\/strong\u003e with \u003cstrong\u003eDN50 PN6\/10 flanged connections\u003c\/strong\u003e and a \u003cstrong\u003e280 mm port-to-port length\u003c\/strong\u003e, designed for commercial hot-water circulation and similar clean-water circulation duties where a bronze pump housing is required.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e supplied in \u003cstrong\u003eas new surplus condition\u003c\/strong\u003e – the unit has not been installed or used but may show minor cosmetic markings from storage and handling. \u003cstrong\u003eGuarantee:\u003c\/strong\u003e supplied with a \u003cstrong\u003e2-year guarantee\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump type:\u003c\/strong\u003e UPS Series 200 bronze circulator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct number:\u003c\/strong\u003e 96402040\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e DN50 PN6\/10 DIN flanges\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePort-to-port length:\u003c\/strong\u003e 280 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 3 × 400–415 V, 50 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeed control:\u003c\/strong\u003e 3 selectable fixed speed settings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower input:\u003c\/strong\u003e P1 240 \/ 290 \/ 430 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 0.43 \/ 0.50 \/ 0.92 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid temperature range:\u003c\/strong\u003e -10 °C to +120 °C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum operating pressure:\u003c\/strong\u003e 10 bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump housing:\u003c\/strong\u003e bronze\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpeller:\u003c\/strong\u003e stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e glandless canned-rotor circulator with no conventional mechanical shaft seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eNeed help confirming suitability?\u003c\/strong\u003e\u003cbr\u003e\nCall us on \u003cstrong\u003e01803 220416\u003c\/strong\u003e for technical advice.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eManufacturer product page\u003c\/h3\u003e\n\n\u003cp\u003e\nFull technical specifications, curves and documentation can be viewed on the official Grundfos product page:\u003cbr\u003e\n\u003ca href=\"https:\/\/product-selection.grundfos.com\/uk\/products\/ups-series-200\/ups-b\/ups-50-604-f-b-280-96402040?frequency=50\u0026amp;pumpsystemid=2954752946\u0026amp;tab=variant-curves\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos UPS 50-60\/4 F B 280 (96402040) – Variant curves\n\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCommercial hot-water circulation\u003c\/li\u003e\n  \u003cli\u003eDomestic hot-water recirculation systems\u003c\/li\u003e\n  \u003cli\u003eClean water circulation duties requiring a bronze pump body\u003c\/li\u003e\n  \u003cli\u003eBuilding services and plant-room circulation\u003c\/li\u003e\n  \u003cli\u003eReplacement of matching DN50, 280 mm bronze circulators\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat does the model number mean?\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPS\u003c\/strong\u003e – Grundfos three-speed glandless circulator range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50\u003c\/strong\u003e – nominal connection size, DN50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e60\u003c\/strong\u003e – maximum head class, approximately 6 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e\/4\u003c\/strong\u003e – 4-pole motor version\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF\u003c\/strong\u003e – flanged connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eB\u003c\/strong\u003e – bronze pump housing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e280\u003c\/strong\u003e – port-to-port length in millimetres\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat connection does this pump have?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis pump has \u003cstrong\u003eDN50 PN6\/10 DIN flanged connections\u003c\/strong\u003e with a \u003cstrong\u003e280 mm port-to-port length\u003c\/strong\u003e. Please check the flange size, pressure rating and pipework gap against your existing pump before ordering.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this suitable to replace another DN50 bronze circulator?\u003c\/h4\u003e\n\n\u003cp\u003e\nYes, where the existing pump has matching \u003cstrong\u003eDN50 PN6\/10 flanges\u003c\/strong\u003e, a \u003cstrong\u003e280 mm port-to-port length\u003c\/strong\u003e, compatible electrical supply and a suitable duty point. It may replace similar bronze-bodied circulators from Grundfos or other manufacturers, subject to hydraulic duty and site configuration.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhy choose the bronze version?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe \u003cstrong\u003ebronze pump housing\u003c\/strong\u003e is used where corrosion resistance or water compatibility is required, particularly in hot-water recirculation applications. Cast iron circulators are normally used for closed heating systems, while bronze versions are typically selected where the circulated water is domestic hot water or where a non-ferrous housing is specified.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this a variable-speed pump?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This is a traditional \u003cstrong\u003ethree-speed UPS circulator\u003c\/strong\u003e. The installer selects one of three fixed speed settings to suit the duty. It is not an electronically variable-speed MAGNA-style circulator.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat liquids can this pump be used with?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis pump is intended for clean, non-aggressive water-based circulation duties. It is commonly used for hot-water recirculation and clean building-services circulation where the system materials, temperature and water quality are suitable.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirty water, wastewater or drainage applications\u003c\/li\u003e\n  \u003cli\u003eLiquids containing solids or fibres\u003c\/li\u003e\n  \u003cli\u003eFlammable liquids\u003c\/li\u003e\n  \u003cli\u003eOils or aggressive chemicals\u003c\/li\u003e\n  \u003cli\u003eApplications outside the pump’s temperature, pressure or material limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDoes this pump have a mechanical shaft seal?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This is a \u003cstrong\u003eglandless canned-rotor circulator\u003c\/strong\u003e, so the pump and motor form an integrated wet-rotor unit with no conventional mechanical shaft seal.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhy would I use this pump instead of a modern high-efficiency replacement?\u003c\/h4\u003e\n\n\u003cp\u003e\nA modern high-efficiency circulator may be the best option where the whole system is being upgraded, but this original-style UPS pump can make sense where the existing installation is already set up for a \u003cstrong\u003e3-phase 400–415V\u003c\/strong\u003e circulator. Many modern high-efficiency replacements are \u003cstrong\u003esingle-phase 230V\u003c\/strong\u003e, so using a like-for-like 3-phase UPS can avoid changing the electrical supply, controls or wiring arrangement.\n\u003c\/p\u003e\n\n\u003cp\u003e\nOlder Grundfos UPS catalogue data for the UPS 50-60 F 280 family gives low minimum inlet-pressure requirements: \u003cstrong\u003e0.05 bar at 75 °C\u003c\/strong\u003e, \u003cstrong\u003e0.35 bar at 90 °C\u003c\/strong\u003e and \u003cstrong\u003e1.65 bar at 120 °C\u003c\/strong\u003e. This can be useful when replacing an existing pump in an older hot-water circulation system, especially where the system was originally designed around this UPS pump style. Any modern replacement should still be checked against its own minimum inlet pressure \/ NPSH requirement before substitution.\n\u003c\/p\u003e\n\u003chr\u003e\n\n\u003ch3\u003eAbout Our Stock\u003c\/h3\u003e\n\n\u003cp\u003e\nStock code: \u003cstrong\u003e#4851\u003c\/strong\u003e\u003cbr\u003e\nWe specialise in supplying \u003cstrong\u003enew and unused surplus pumps\u003c\/strong\u003e. All units are inspected prior to dispatch and supplied with a \u003cstrong\u003e2-year guarantee\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":57387307729273,"sku":null,"price":1495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1218\/7894\/files\/b6c3e29c-dd5f-4962-b39a-4a3dfd0f6dbc.jpg?v=1780663331","url":"https:\/\/thepumpdealer.co.uk\/products\/grundfos-ups-50-60-4-f-b-280-bronze-circulator-pump-415v-96402040-4851","provider":"The Pump Dealer","version":"1.0","type":"link"}