{"product_id":"grundfos-magna1d-40-80-f-220-flanged-pump-heating-circulator-240v-dn40-99221308-model-c-4900-used","title":"Grundfos Magna1D 40-80 F 220 Flanged Pump Heating Circulator 240v Dn40 99221308 Model C #4900 USED","description":"\u003cdiv style=\"max-width: 900px; margin: 0 auto; padding: 20px; line-height: 1.6;\"\u003e\n\n\u003ch2\u003eGrundfos MAGNA1 D 40-80 F 220 Model C – 240V Twin-Head Flanged Heating Circulator Pump (99221308) #4900 USED\u003c\/h2\u003e\n\n\u003cp\u003e\nThis listing is for a \u003cstrong\u003eGrundfos MAGNA1 D 40-80 F 220 Model C\u003c\/strong\u003e high-efficiency twin-head canned-rotor circulator pump with \u003cstrong\u003eDN40 PN10 flanged connections\u003c\/strong\u003e and a \u003cstrong\u003e220 mm port-to-port length\u003c\/strong\u003e. It is designed for clean heating, cooling and building-services circulation systems where reliable variable-speed performance and twin-head resilience are required.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e supplied as a \u003cstrong\u003eused pump\u003c\/strong\u003e. The unit has been previously installed\/used and may show cosmetic wear consistent with service use. It is inspected prior to dispatch. \u003cstrong\u003eGuarantee:\u003c\/strong\u003e supplied with a \u003cstrong\u003e6-month guarantee\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump type:\u003c\/strong\u003e MAGNA1 D Model C twin-head canned-rotor circulator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrundfos product number:\u003c\/strong\u003e 99221308\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel\/version:\u003c\/strong\u003e Model C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e DN40 PN10 flanged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePort-to-port length:\u003c\/strong\u003e 220 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 1 × 230 V \/ 240 V class, 50\/60 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower input:\u003c\/strong\u003e P1 18.4–276 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 0.20–1.25 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum head class:\u003c\/strong\u003e 8 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum flow:\u003c\/strong\u003e approximately 24 m³\/h \/ 6.7 L\/s\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum operating pressure:\u003c\/strong\u003e 10 bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid temperature range:\u003c\/strong\u003e -10 °C to +110 °C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum inlet pressure:\u003c\/strong\u003e 0.10 bar at 75 °C, 0.50 bar at 95 °C, 1.00 bar at 110 °C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNet weight:\u003c\/strong\u003e 32.3 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnergy efficiency index:\u003c\/strong\u003e EEI 0.23\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e proportional pressure, constant pressure or constant curve \/ constant speed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwin-head function:\u003c\/strong\u003e wireless alternating operation between the two pump heads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e glandless canned-rotor pump 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\/magna\/magna1-d\/magna1-d-40-80-f-99221308?pumpsystemid=2947143777\u0026amp;tab=variant-curves\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos MAGNA1 D 40-80 F (99221308) – Variant curves\n\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical documentation\u003c\/h3\u003e\n\n\u003cp\u003e\nThe MAGNA1 Model C technical data PDF can be viewed here:\u003cbr\u003e\n\u003ca href=\"https:\/\/api.grundfos.com\/literature\/Grundfosliterature-5992758.pdf\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos MAGNA1 Model C technical data PDF\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\u003eHeating systems and boiler circuits\u003c\/li\u003e\n  \u003cli\u003eCommercial building-services circulation\u003c\/li\u003e\n  \u003cli\u003eDistrict heating and district cooling\u003c\/li\u003e\n  \u003cli\u003eAir-conditioning and chilled water systems\u003c\/li\u003e\n  \u003cli\u003eMixing loops and plant-room circulation\u003c\/li\u003e\n  \u003cli\u003eGround-source heat pump and solar-heating systems\u003c\/li\u003e\n  \u003cli\u003eReplacement of matching DN40 twin-head 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\u003eMAGNA1\u003c\/strong\u003e – Grundfos high-efficiency circulator range with simple control and monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD\u003c\/strong\u003e – twin-head pump\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40\u003c\/strong\u003e – nominal diameter of inlet and outlet ports, DN40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e80\u003c\/strong\u003e – maximum head class, 80 dm \/ approximately 8 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF\u003c\/strong\u003e – flanged connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e220\u003c\/strong\u003e – port-to-port length in millimetres\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel C\u003c\/strong\u003e – MAGNA1 pump version shown on the nameplate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat does the twin-head design do?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe \u003cstrong\u003eMAGNA1 D\u003c\/strong\u003e has two pump heads mounted on a common body. Twin-head pumps are commonly used where duty\/standby operation, alternating operation or improved service resilience is required.\n\u003c\/p\u003e\n\n\u003cp\u003e\nOn MAGNA1 D Model C pumps, the twin-head function allows the two pump heads to communicate wirelessly and operate in alternating mode. Normally one pump head runs at a time, with changeover every 24 hours or if one pump head registers an alarm.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat control modes are available?\u003c\/h4\u003e\n\n\u003cp\u003e\nMAGNA1 Model C has simple onboard control with LED indication. The available operating modes are:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProportional-pressure control\u003c\/strong\u003e – useful where system pressure losses vary with flow demand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstant-pressure control\u003c\/strong\u003e – useful where a stable pressure is required across changing flow demand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstant curve \/ constant speed\u003c\/strong\u003e – runs the pump on a fixed curve, similar to a traditional fixed-speed circulator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe pump is selected using the control button on the pump. Grundfos GO can also be used for selected functions such as adjusting the proportional-pressure setpoint, managing the fault-relay trigger setting in twin-head pumps, and reading warning\/alarm indications.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this suitable to replace other DN40 twin-head circulators?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis model uses \u003cstrong\u003eDN40 PN10 flanged connections\u003c\/strong\u003e with a \u003cstrong\u003e220 mm port-to-port length\u003c\/strong\u003e. Where dimensions and duty are comparable, it can replace other DN40 twin-head in-line circulators from brands such as \u003cstrong\u003eWilo, Lowara and KSB\u003c\/strong\u003e, subject to hydraulic duty, flange standard, electrical supply and control compatibility.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe advantage of an electronically controlled circulator is that it can often be adjusted during commissioning to better match the required duty of the pump being replaced, rather than being locked to one fixed-speed curve.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat liquids can this pump be used with?\u003c\/h4\u003e\n\n\u003cp\u003e\nMAGNA1 is suitable for thin, clean, non-aggressive and non-explosive liquids that do not contain solid particles, fibres or mineral oils. Typical uses include heating water, chilled water and clean circulation duties.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eWater\/glycol mixtures may be used\u003c\/strong\u003e up to 50%, but glycol concentration and temperature affect viscosity, performance and pump selection. The system should be cleaned and flushed before glycol is added, and the glycol mixture should be maintained according to the supplier’s instructions.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLiquids containing solid particles or fibres\u003c\/li\u003e\n  \u003cli\u003eFlammable, combustible or explosive liquids\u003c\/li\u003e\n  \u003cli\u003eDiesel, petrol, mineral oils or aggressive chemicals\u003c\/li\u003e\n  \u003cli\u003eSea water or aggressive saline solutions\u003c\/li\u003e\n  \u003cli\u003eDirty water, wastewater or drainage applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eCan this be used on domestic hot-water systems?\u003c\/h4\u003e\n\n\u003cp\u003e\nMAGNA1 pumps are listed by Grundfos for domestic hot-water systems, but suitability depends on water quality, temperature, local regulations and pump housing material. This pump is the \u003cstrong\u003ecast iron housing\u003c\/strong\u003e version, not the stainless-steel \u003cstrong\u003eN\u003c\/strong\u003e version. For domestic hot-water applications, Grundfos strongly recommends stainless-steel pumps to reduce corrosion risk.\n\u003c\/p\u003e\n\n\u003cp\u003e\nGrundfos also recommends using MAGNA pumps in domestic hot-water applications only where water hardness is below approximately \u003cstrong\u003e14 °dH\u003c\/strong\u003e, and keeping the liquid temperature below \u003cstrong\u003e65 °C\u003c\/strong\u003e to reduce the risk of lime precipitation. Please check the full system requirements before ordering.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat minimum inlet pressure is required?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe required minimum inlet pressure depends on liquid temperature. For this pump family, the relevant guidance is:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e75 °C:\u003c\/strong\u003e 0.10 bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e95 °C:\u003c\/strong\u003e 0.50 bar\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e110 °C:\u003c\/strong\u003e 1.00 bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe inlet pressure and system pressure should always be checked against the installed duty, liquid temperature and manufacturer documentation before commissioning.\n\u003c\/p\u003e\n\n\u003ch4\u003eDoes this pump have a mechanical shaft seal?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. MAGNA1 is a \u003cstrong\u003ecanned-rotor circulator\u003c\/strong\u003e, meaning the pump and motor form an integrated wet-rotor unit without a conventional mechanical shaft seal.\n\u003c\/p\u003e\n\n\u003ch4\u003eDoes this pump need external motor protection?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo external motor protection is normally required. The pump incorporates overload protection, but the electrical installation must still be carried out correctly and in accordance with local regulations.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhy choose MAGNA1 instead of MAGNA3?\u003c\/h4\u003e\n\n\u003cp\u003e\nMAGNA1 is usually chosen when you need a reliable, energy-efficient circulator with simpler setup and lower cost. MAGNA3 adds more advanced features such as expanded monitoring, energy metering and additional communication\/control options.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this a new pump?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This item is supplied as \u003cstrong\u003eused\u003c\/strong\u003e. It has been inspected prior to dispatch and is supplied with a \u003cstrong\u003e6-month guarantee\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eAbout Our Stock\u003c\/h3\u003e\n\n\u003cp\u003e\nStock code: \u003cstrong\u003e#4900\u003c\/strong\u003e\u003cbr\u003e\nWe specialise in supplying \u003cstrong\u003eused and surplus pumps\u003c\/strong\u003e. This unit is inspected prior to dispatch and supplied with a \u003cstrong\u003e6-month guarantee\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":57405618520441,"sku":null,"price":1100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1218\/7894\/files\/f801d146-317e-47e6-b87a-807e2d309332.jpg?v=1781000364","url":"https:\/\/thepumpdealer.co.uk\/products\/grundfos-magna1d-40-80-f-220-flanged-pump-heating-circulator-240v-dn40-99221308-model-c-4900-used","provider":"The Pump Dealer","version":"1.0","type":"link"}