{"product_id":"grundfos-upcd-40-120-f-flanged-pump-heating-circulator-415v-dn40-96406323-4881-used-copy","title":"Grundfos TPD 50-60\/2 A F A BQQE Flanged Pump Heating Circulator 415v Dn50 98957979 #4887 USED","description":"\u003cdiv style=\"max-width: 900px; margin: 0 auto; padding: 20px; line-height: 1.6;\"\u003e\n\n\u003ch2\u003eGrundfos TPD 50-60\/2 A-F-A-BQQE-DW1 – Flanged Twin-Head Heating Circulator Pump 415V DN50 (98957979) #4887 USED\u003c\/h2\u003e\n\n\u003cp\u003e\nThis listing is for a \u003cstrong\u003eGrundfos TPD 50-60\/2\u003c\/strong\u003e twin-head dry-rotor in-line circulator pump, product number \u003cstrong\u003e98957979\u003c\/strong\u003e. It has \u003cstrong\u003eDN50 PN6\/10 DIN flanged connections\u003c\/strong\u003e and is designed for heating, cooling and commercial building-services circulation duties where a robust twin-head pump arrangement is 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 TPD twin-head dry-rotor in-line circulator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrundfos product number:\u003c\/strong\u003e 98957979\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e TPD 50-60\/2 A-F-A-BQQE-DW1\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\u003eRated flow:\u003c\/strong\u003e 16.2 m³\/h \/ 4.5 L\/s\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated head:\u003c\/strong\u003e 4.39 m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 3 × 220–240D \/ 380–415Y V, 50 Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated motor output:\u003c\/strong\u003e 0.37 kW per motor head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e 2-pole asynchronous IE3 motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated speed:\u003c\/strong\u003e 2850–2880 rpm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated current:\u003c\/strong\u003e 1.74 \/ 1.00 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid temperature range:\u003c\/strong\u003e -25 °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\u003eMotor protection \/ insulation:\u003c\/strong\u003e IP55 \/ class F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft seal:\u003c\/strong\u003e BQQE mechanical seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e top-pull-out design for service without removing the pump housing from the pipework\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\/tp-tpe\/tpd\/tpd-50-602-98957979?frequency=50\u0026amp;pumpsystemid=2927688804\u0026amp;tab=variant-curves\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos TPD 50-60\/2 (98957979) – 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\nGrundfos TP, TPD, TPE and TPED technical documentation can be viewed here:\u003cbr\u003e\n\u003ca href=\"https:\/\/api.grundfos.com\/literature\/Grundfosliterature-1580.pdf\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos TPE3, TPE2, TPE Series 2000\/1000, TP and TPD data booklet\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 circulation systems\u003c\/li\u003e\n  \u003cli\u003eCommercial building-services circulation\u003c\/li\u003e\n  \u003cli\u003eAir-conditioning and chilled water systems\u003c\/li\u003e\n  \u003cli\u003eDistrict heating and district cooling\u003c\/li\u003e\n  \u003cli\u003ePlant-room circulation duties\u003c\/li\u003e\n  \u003cli\u003eReplacement of matching DN50 twin-head dry-rotor 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\u003eTPD\u003c\/strong\u003e – twin-head version of the Grundfos TP dry-rotor in-line circulator range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50\u003c\/strong\u003e – nominal diameter of inlet and outlet ports, 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\/2\u003c\/strong\u003e – 2-pole motor version\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\u003c\/strong\u003e – basic pump version\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF\u003c\/strong\u003e – DIN flange connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\u003c\/strong\u003e – basic materials version\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBQQE\u003c\/strong\u003e – shaft seal code\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDW1\u003c\/strong\u003e – motor \/ voltage \/ speed suffix\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\u003eTPD\u003c\/strong\u003e design has two parallel pump heads on a common in-line pump body. Twin-head pumps are commonly used where duty\/standby operation, duty sharing or service resilience is required, depending on the system controls and installation setup.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat does BQQE mean?\u003c\/h4\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eBQQE\u003c\/strong\u003e describes the mechanical seal construction and materials:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eB\u003c\/strong\u003e – rubber bellows seal construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e – silicon carbide rotating seal face\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e – silicon carbide stationary seal face\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eE\u003c\/strong\u003e – EPDM elastomers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nBQQE is commonly used for heating and cooling water duties compatible with EPDM. The silicon carbide \/ silicon carbide seal faces offer good wear resistance and are useful for hot water applications.\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 typically suitable for clean circulation liquids compatible with cast iron and EPDM, including heating water, chilled water, district heating\/cooling water, condensate, softened water and clean industrial circulation liquids.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eWater\/glycol mixtures may be used\u003c\/strong\u003e, but allowable temperature and concentration depend on the full system design, seal selection and operating conditions. Refer to the Grundfos liquid compatibility guidance before use with glycol or brines.\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 liquids\u003c\/li\u003e\n  \u003cli\u003eMineral oils or synthetic oils without suitable alternative seal selection\u003c\/li\u003e\n  \u003cli\u003eStrong chemicals or solvents that attack EPDM\u003c\/li\u003e\n  \u003cli\u003eSea water or aggressive saline solutions\u003c\/li\u003e\n  \u003cli\u003eDirty water, wastewater or drainage duties\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eIs this suitable to replace other DN50 circulators?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis model uses \u003cstrong\u003eDN50 PN6\/10 DIN flanges\u003c\/strong\u003e with a \u003cstrong\u003e280 mm port-to-port length\u003c\/strong\u003e. Where dimensions and duty are comparable, it can replace other DN50 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\u003ch4\u003eWhat is the difference between TPD and TPED?\u003c\/h4\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eTPD\u003c\/strong\u003e is the fixed-speed twin-head version of the TP dry-rotor in-line pump range. \u003cstrong\u003eTPED\u003c\/strong\u003e is the electronically speed-controlled twin-head version with integrated variable-speed motor control. If replacing a TPED with a TPD, or vice versa, the electrical supply, control method and required pump duty must be checked carefully.\n\u003c\/p\u003e\n\n\u003ch4\u003eCan the motor be removed without disturbing the pipework?\u003c\/h4\u003e\n\n\u003cp\u003e\nYes. The pump uses a \u003cstrong\u003etop-pull-out design\u003c\/strong\u003e, meaning the power head can be removed for service while the pump housing remains installed in the pipework.\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\u003ch4\u003eWho should install this pump?\u003c\/h4\u003e\n\n\u003cp\u003e\nInstallation should be carried out by a competent heating engineer or electrician. The pump must be installed, wired and protected according to the motor nameplate, manufacturer instructions and applicable electrical regulations.\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#4887\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":57405249421689,"sku":null,"price":1200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1218\/7894\/files\/00eeddcb-e86c-4fb9-9646-d3d320043788.jpg?v=1780994513","url":"https:\/\/thepumpdealer.co.uk\/products\/grundfos-upcd-40-120-f-flanged-pump-heating-circulator-415v-dn40-96406323-4881-used-copy","provider":"The Pump Dealer","version":"1.0","type":"link"}