{"product_id":"fleck-2850-aiq-nbp-filter-valve-no-dlfc","title":"Fleck 2850 AiQ NBP Filter Valve 1½\" BSP – No DLFC","description":"\u003cp\u003eThe \u003cstrong\u003eFleck 2850 AiQ NBP Filter Valve\u003c\/strong\u003e combines the proven Fleck 2850 heavy-duty brass valve platform with Pentair's latest \u003cstrong\u003eAdvanced-iQ (AiQ) controller and powerhead\u003c\/strong\u003e, providing modern electronic control for commercial and industrial automatic backwashing filtration systems.\u003c\/p\u003e\n\u003cp\u003eDesigned as the new-generation alternative to the Fleck 2850 Filter Valve previously supplied with the SXT controller, the AiQ platform provides an intuitive full-colour interface, simplified programming, USB-C connectivity and a modular powerhead designed to make installation, commissioning and servicing easier.\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003eNBP (No Bypass Piston)\u003c\/strong\u003e filter configuration. During a backwash or regeneration cycle, the NBP configuration prevents untreated water from passing through to service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: this valve is supplied without a DLFC (Drain Line Flow Control). The appropriate DLFC should be selected separately to suit the vessel size, filter media and required backwash flow rate.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFleck 2850 heavy-duty brass control valve\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdvanced-iQ (AiQ) electronic controller and powerhead\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for automatic backwashing filtration systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNBP – No Bypass Piston\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo untreated water to service during backwash\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupplied \u003cstrong\u003ewithout DLFC\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1½\" BSP inlet and outlet connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous service flow up to \u003cstrong\u003e11.6 m³\/h\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum backwash flow up to \u003cstrong\u003e11.1 m³\/h\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWorking pressure: \u003cstrong\u003e1.8–8.5 bar\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWorking temperature: \u003cstrong\u003e1–43°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e24 V, 50\/60 Hz electrical supply\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e50 mm (DN40) distributor tube\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1\" NPT drain connection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for filter vessels from \u003cstrong\u003e10\" to 24\" diameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable electronic cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to 99 minutes available per cycle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFull-colour multilingual display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB-C programming and data transfer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField-updateable controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModular powerhead design for easier installation and servicing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMulti-angle status light\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced AiQ Control\u003c\/h3\u003e\n\u003cp\u003ePentair's Advanced-iQ controller provides a modern replacement for the traditional Fleck SXT control platform. Programming can be carried out directly through the controller, with a dedicated \u003cstrong\u003eFilter Cycle\u003c\/strong\u003e available when configuring the valve.\u003c\/p\u003e\n\u003cp\u003eThe USB-C connection supports programming, data transfer, usage history retrieval, software updates, diagnostics and troubleshooting. The controller can also be programmed before installation, while flash programming allows predefined configurations to be transferred efficiently between multiple valves.\u003c\/p\u003e\n\u003ch3\u003eNBP – No Bypass Piston\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNo Bypass Piston (NBP)\u003c\/strong\u003e configuration stops the supply of untreated water to service while the filter is carrying out its cleaning or backwash cycle.\u003c\/p\u003e\n\u003cp\u003eThis makes the NBP version particularly suitable for commercial and industrial applications where allowing untreated water downstream during backwash would be undesirable.\u003c\/p\u003e\n\u003ch3\u003eDLFC Selection\u003c\/h3\u003e\n\u003cp\u003eThis version is supplied \u003cstrong\u003ewithout a Drain Line Flow Control (DLFC)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe DLFC determines the backwash flow rate through the filter vessel and should be selected separately according to the \u003cstrong\u003efilter media, vessel diameter and required media bed expansion\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSupplying the valve without a fixed DLFC allows it to be configured for a wide variety of filtration media and vessel sizes.\u003c\/p\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eThe Fleck 2850 AiQ NBP Filter Valve is suitable for commercial and industrial automatic backwashing filters including activated carbon, multimedia, sediment and specialist filtration systems where the required backwash rate is determined by the media and vessel size.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fleck","offers":[{"title":"Default Title","offer_id":43726542667971,"sku":"10344000024C00006 | 0301283093SXT-NB","price":985.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/3227\/4627\/files\/2850aiq4.jpg?v=1787663063","url":"https:\/\/www.gapswater.co.uk\/products\/fleck-2850-aiq-nbp-filter-valve-no-dlfc","provider":"GAPS Water Treatment Ltd","version":"1.0","type":"link"}