{"product_id":"grundfos-umc-d-65-60-circulator-replacement-pump-head-240v-96406330-5009","title":"Grundfos UMC\/D 65-60 Circulator Replacement Pump Head 240V 96406330 #5009\/17","description":"\u003cdiv style=\"max-width: 900px; margin: 0 auto; padding: 20px; line-height: 1.6;\"\u003e\n\n\u003ch2\u003eGrundfos UMC\/D 65-60 Circulator Replacement Pump Head 240V 96406330 #5009\u003c\/h2\u003e\n\n\u003cp\u003e\nThis listing is for a \u003cstrong\u003eGrundfos UMC\/D 65-60 replacement circulator pump head\u003c\/strong\u003e, current part number \u003cstrong\u003e96406330\u003c\/strong\u003e, also associated with old \/ superseded part number \u003cstrong\u003e56632673\u003c\/strong\u003e. It is a genuine Grundfos replacement head for compatible \u003cstrong\u003eUMC 65-60\u003c\/strong\u003e and \u003cstrong\u003eUMCD 65-60\u003c\/strong\u003e commercial circulator pump assemblies.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis is a \u003cstrong\u003ereplacement pump head only\u003c\/strong\u003e. It is not a complete pump and does not include the pump body, flanges, valves, pipework or complete circulator assembly. It is intended for repairing an existing compatible Grundfos installation where the pump body and pipework are being retained.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e UMC replacement heads can also fit the corresponding \u003cstrong\u003eGrundfos UMS range\u003c\/strong\u003e, including suitable UMS 65-60 installations, where the existing pump head, body interface and electrical specification match. Please check the existing pump nameplate, head fixing, terminal box arrangement and photos before ordering.\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 item 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\u003eManufacturer:\u003c\/strong\u003e Grundfos\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e replacement circulator pump head \/ motor head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel reference:\u003c\/strong\u003e UMC\/D 65-60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent replacement head part number:\u003c\/strong\u003e 96406330\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOld \/ superseded part number:\u003c\/strong\u003e 56632673\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStock code:\u003c\/strong\u003e #5009\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable pump range:\u003c\/strong\u003e UMC \/ UMCD 65-60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdditional compatibility:\u003c\/strong\u003e may also fit corresponding UMS 65-60 pump assemblies, subject to confirmation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 240V, single-phase, 50Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump style:\u003c\/strong\u003e glandless wet-rotor circulator head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel head reference:\u003c\/strong\u003e 65-60 \/ 6m head class\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e replacement head for compatible UMC, UMCD and corresponding UMS circulator pump bodies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e check existing pump model, nameplate, head interface, terminal box arrangement and electrical supply before purchase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eObsolescence note:\u003c\/strong\u003e this is a legacy Grundfos spare that is now difficult to obtain through normal distributor channels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eNeed help confirming compatibility?\u003c\/strong\u003e\u003cbr\u003e\nCall us on \u003cstrong\u003e01803 220416\u003c\/strong\u003e or send photos of your existing pump nameplate, terminal box and pump body.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical documentation\u003c\/h3\u003e\n\n\u003cp\u003e\nArchived Grundfos UMC \/ UPC in-line circulator brochure:\u003cbr\u003e\n\u003ca href=\"https:\/\/www.water-pump.biz\/pdf\/UPC-Inline-Circulator.pdf\" rel=\"nofollow noopener\" target=\"_blank\"\u003e\nView Grundfos UMC \/ UPC in-line circulator brochure\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\u003eReplacement head for compatible Grundfos UMC 65-60 circulators\u003c\/li\u003e\n  \u003cli\u003eReplacement head for compatible Grundfos UMCD 65-60 twin-head circulators\u003c\/li\u003e\n  \u003cli\u003ePossible replacement head for corresponding Grundfos UMS 65-60 circulators, subject to confirmation\u003c\/li\u003e\n  \u003cli\u003eCommercial heating circulation\u003c\/li\u003e\n  \u003cli\u003eHVAC circulation systems\u003c\/li\u003e\n  \u003cli\u003eClean closed-loop water circulation\u003c\/li\u003e\n  \u003cli\u003eRepair of legacy 240V single-phase circulator installations without changing pipework\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is this item?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis is a \u003cstrong\u003ereplacement pump head\u003c\/strong\u003e for compatible Grundfos UMC\/D 65-60 circulator pumps. It replaces the motor\/head section of the pump while retaining the existing pump body, flanges and pipework.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this a complete pump?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This is the \u003cstrong\u003epump head only\u003c\/strong\u003e. It is intended for replacing a failed head on an existing compatible pump body.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs 56632673 the same part?\u003c\/h4\u003e\n\n\u003cp\u003e\n\u003cstrong\u003e56632673\u003c\/strong\u003e is an older \/ superseded Grundfos reference associated with this replacement head. The current replacement head part number used for this listing is \u003cstrong\u003e96406330\u003c\/strong\u003e. When checking compatibility, compare both the old part number and the current part number against the existing pump model, size, voltage and head\/body interface.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat does UMC\/D mean?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe wording \u003cstrong\u003eUMC\/D\u003c\/strong\u003e is used because this replacement head is suitable for both \u003cstrong\u003eUMC\u003c\/strong\u003e single-head pump assemblies and \u003cstrong\u003eUMCD\u003c\/strong\u003e twin-head pump assemblies of the corresponding 65-60 size, where the existing head and body interface match.\n\u003c\/p\u003e\n\n\u003ch4\u003eDoes this fit the UMS range?\u003c\/h4\u003e\n\n\u003cp\u003e\nYes, UMC replacement heads can also fit the corresponding \u003cstrong\u003eGrundfos UMS range\u003c\/strong\u003e, including suitable UMS 65-60 installations. Compatibility should still be confirmed against the existing pump nameplate, pump body, head interface and electrical supply before ordering.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat voltage is this head?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis is a \u003cstrong\u003e240V, single-phase, 50Hz\u003c\/strong\u003e replacement head. It is intended for existing single-phase commercial heating circulator installations and is not a 415V three-phase replacement head.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat does 65-60 mean?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe \u003cstrong\u003e65\u003c\/strong\u003e refers to the pump size \/ DN65 circulator family, and \u003cstrong\u003e60\u003c\/strong\u003e refers to the 6m head class. This replacement head is for the 65-60 size range, not the smaller 50-60 or larger 80-60 versions.\n\u003c\/p\u003e\n\n\u003ch4\u003eDoes this fit UMCD twin-head pumps?\u003c\/h4\u003e\n\n\u003cp\u003e\nYes. This head can be used on compatible \u003cstrong\u003eUMCD 65-60\u003c\/strong\u003e twin-head pump assemblies. On twin-head pumps, only the failed head is normally replaced while the shared pump body remains in place.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhy choose this replacement head instead of a modern high-efficiency circulator?\u003c\/h4\u003e\n\n\u003cp\u003e\nThe main advantage is that this head allows a like-for-like repair of an existing \u003cstrong\u003eUMC, UMCD or corresponding UMS 65-60\u003c\/strong\u003e installation. If the existing pump body, flanges and pipework are still sound, replacing only the head can avoid disturbing the pipework and can be much simpler than changing the complete circulator.\n\u003c\/p\u003e\n\n\u003cp\u003e\nModern high-efficiency circulators can be a good option, but a full replacement may require checks on port-to-port length, flange standard, electrical supply, control method, minimum inlet pressure and commissioning settings. A correct original-style replacement head keeps the repair closer to the original pump arrangement that the system was designed around.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat about NPSH or minimum inlet pressure?\u003c\/h4\u003e\n\n\u003cp\u003e\nWhen changing an older circulator for a modern high-efficiency replacement, the \u003cstrong\u003eminimum inlet pressure \/ NPSH requirement\u003c\/strong\u003e should be checked. Modern circulators may have different minimum inlet pressure requirements to avoid cavitation noise and bearing damage, especially at higher liquid temperatures.\n\u003c\/p\u003e\n\n\u003cp\u003e\nUsing the correct original-style replacement head keeps the pump closer to the original hydraulic arrangement. It does not remove the need to check system pressure, water temperature and system condition, but it avoids introducing a different modern pump design with different inlet-pressure assumptions.\n\u003c\/p\u003e\n\n\u003ch4\u003eShould the terminal box be changed at the same time?\u003c\/h4\u003e\n\n\u003cp\u003e\nDistributor information for this type of replacement head often recommends changing the terminal box with the head to help prolong pump life. If the existing terminal box is old, heat-damaged, water-damaged or showing signs of electrical wear, it should be inspected and replaced where required by a competent person.\n\u003c\/p\u003e\n\n\u003ch4\u003eDoes this pump head have a mechanical shaft seal?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This is a glandless wet-rotor circulator head, so it does not use a conventional mechanical shaft seal like a dry-rotor pump. The pumped liquid lubricates and cools the rotor\/bearing assembly, so the pump must not be run dry.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat liquids is it suitable for?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis head is intended for clean commercial heating and HVAC circulation water duties in compatible UMC, UMCD and corresponding UMS pump bodies. Suitability depends on the full pump body, system water quality, temperature, pressure and electrical installation.\n\u003c\/p\u003e\n\n\u003ch4\u003eCan this handle dirty water or sludge?\u003c\/h4\u003e\n\n\u003cp\u003e\nNo. This type of circulator head is for clean closed-loop circulation duties. It is not designed for dirty water, sewage, sludge, abrasive solids, fibres or heavily contaminated systems. Poor system water quality can damage the rotor and bearing assembly.\n\u003c\/p\u003e\n\n\u003ch4\u003eIs this still available from Grundfos?\u003c\/h4\u003e\n\n\u003cp\u003e\nThis is a legacy Grundfos replacement head and is now difficult to obtain through normal distributor channels. Some spares listings show this part as discontinued or obsolete with no known replacement, so surplus stock can be useful where an existing UMC, UMCD or corresponding UMS installation needs to be kept running.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat should I check before ordering?\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003eExisting pump model: UMC, UMCD or corresponding UMS\u003c\/li\u003e\n  \u003cli\u003eExisting size: 65-60\u003c\/li\u003e\n  \u003cli\u003eCurrent replacement head part number: 96406330\u003c\/li\u003e\n  \u003cli\u003eOld \/ superseded part number: 56632673\u003c\/li\u003e\n  \u003cli\u003eElectrical supply: 240V, single-phase, 50Hz\u003c\/li\u003e\n  \u003cli\u003eHead\/body interface and bolt pattern\u003c\/li\u003e\n  \u003cli\u003eTerminal box condition and wiring arrangement\u003c\/li\u003e\n  \u003cli\u003eSystem water quality and whether the pump body is still serviceable\u003c\/li\u003e\n  \u003cli\u003eMinimum inlet pressure \/ NPSH suitability if considering a modern alternative\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eAbout Our Stock\u003c\/h3\u003e\n\n\u003cp\u003e\nStock code: \u003cstrong\u003e#5009\u003c\/strong\u003e\u003cbr\u003e\nWe specialise in supplying \u003cstrong\u003enew and unused surplus commercial pump equipment and replacement pump heads\u003c\/strong\u003e. This item is supplied in \u003cstrong\u003eas new surplus condition\u003c\/strong\u003e and may show minor cosmetic marks from storage and handling.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis item is supplied with a \u003cstrong\u003e2-year guarantee\u003c\/strong\u003e. Please check the part number, voltage, pump size and compatibility carefully before purchase. If unsure, send us photos of your existing pump and we will help confirm suitability.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":63786324623737,"sku":null,"price":795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1218\/7894\/files\/d888be2a-adb4-4f9c-ab17-12473af127ae.jpg?v=1792402227","url":"https:\/\/thepumpdealer.co.uk\/products\/grundfos-umc-d-65-60-circulator-replacement-pump-head-240v-96406330-5009","provider":"The Pump Dealer","version":"1.0","type":"link"}