{"product_id":"hongsen-bfk-bi-flow-refrigeration-filter-driers","title":"HONGSEN BFK Series Bi-Flow Refrigeration Filter Driers","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe HONGSEN BFK Series consists of bi-flow filter driers designed for installation in the liquid lines of refrigeration and air-conditioning systems requiring refrigerant flow in both directions.\u003c\/p\u003e\n\u003cp\u003eThe internal filtration system removes moisture and solid contaminants from the refrigerant circuit, helping protect compressors, expansion valves and other sensitive refrigeration components.\u003c\/p\u003e\n\u003cp\u003eBFK filter driers contain a solid core composed of 80% 3A molecular sieve and 20% activated alumina. This combination provides moisture absorption and acid-removal performance for compatible HCFC and HFC refrigeration systems using POE or PAG synthetic lubricants.\u003c\/p\u003e\n\u003cp\u003eSAE flare and copper ODF solder connection versions are available.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBidirectional refrigerant-flow design\u003c\/li\u003e\n\u003cli\u003eDesigned for refrigeration and air-conditioning liquid lines\u003c\/li\u003e\n\u003cli\u003eSolid filter core construction\u003c\/li\u003e\n\u003cli\u003e80% 3A molecular sieve\u003c\/li\u003e\n\u003cli\u003e20% activated alumina\u003c\/li\u003e\n\u003cli\u003eMoisture and acid-removal capability\u003c\/li\u003e\n\u003cli\u003e40-micrometre filtration fineness\u003c\/li\u003e\n\u003cli\u003eLow-pressure-drop internal design\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant powder-coated shell\u003c\/li\u003e\n\u003cli\u003eSAE flare and ODF solder connections available\u003c\/li\u003e\n\u003cli\u003eSuitable for HCFC and HFC refrigerants\u003c\/li\u003e\n\u003cli\u003eCompatible with systems using POE or PAG lubricants\u003c\/li\u003e\n\u003cli\u003eCan be installed in different mounting orientations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Technical Specifications\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBi-flow filter drier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Line\u003c\/td\u003e\n\u003ctd\u003eRefrigeration liquid line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable Refrigerants\u003c\/td\u003e\n\u003ctd\u003eHCFC and HFC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Lubricants\u003c\/td\u003e\n\u003ctd\u003ePOE or PAG synthetic lubricants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter-Core Composition\u003c\/td\u003e\n\u003ctd\u003e80% 3A molecular sieve and 20% activated alumina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Fineness\u003c\/td\u003e\n\u003ctd\u003e40 micrometres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedium Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +120°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Working Pressure\u003c\/td\u003e\n\u003ctd\u003e4.2 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Test Pressure\u003c\/td\u003e\n\u003ctd\u003e6.3 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Options\u003c\/td\u003e\n\u003ctd\u003eSAE flare or ODF solder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Protection\u003c\/td\u003e\n\u003ctd\u003eCorrosion-resistant powder coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Direction\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSAE Flare Models\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003cth\u003eA\u003c\/th\u003e\n\u003cth\u003eØB\u003c\/th\u003e\n\u003cth\u003eØC\u003c\/th\u003e\n\u003cth\u003eD\u003c\/th\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003cth\u003eS\u003c\/th\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-083\u003c\/td\u003e\n\u003ctd\u003e3\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e158 mm\u003c\/td\u003e\n\u003ctd\u003e66.5 mm\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003ctd\u003e17 mm\u003c\/td\u003e\n\u003ctd\u003e167 mm\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e5\/8-18UNF\u003c\/td\u003e\n\u003ctd\u003e582 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-084\u003c\/td\u003e\n\u003ctd\u003e1\/2 SAE\u003c\/td\u003e\n\u003ctd\u003e165 mm\u003c\/td\u003e\n\u003ctd\u003e66.5 mm\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e175 mm\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e3\/4-16UNF\u003c\/td\u003e\n\u003ctd\u003e624 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-164\u003c\/td\u003e\n\u003ctd\u003e1\/2 SAE\u003c\/td\u003e\n\u003ctd\u003e179 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e189 mm\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e3\/4-16UNF\u003c\/td\u003e\n\u003ctd\u003e839 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-165\u003c\/td\u003e\n\u003ctd\u003e5\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e186 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e13 mm\u003c\/td\u003e\n\u003ctd\u003e23.5 mm\u003c\/td\u003e\n\u003ctd\u003e198 mm\u003c\/td\u003e\n\u003ctd\u003e22 mm\u003c\/td\u003e\n\u003ctd\u003e7\/8-14UNF\u003c\/td\u003e\n\u003ctd\u003e893 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eODF Solder Models\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003cth\u003eA\u003c\/th\u003e\n\u003cth\u003eØB\u003c\/th\u003e\n\u003cth\u003eØC\u003c\/th\u003e\n\u003cth\u003eD\u003c\/th\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-083S\u003c\/td\u003e\n\u003ctd\u003e3\/8 ODF\u003c\/td\u003e\n\u003ctd\u003e141 mm\u003c\/td\u003e\n\u003ctd\u003e66.5 mm\u003c\/td\u003e\n\u003ctd\u003e9.7 mm\u003c\/td\u003e\n\u003ctd\u003e9 mm\u003c\/td\u003e\n\u003ctd\u003e147 mm\u003c\/td\u003e\n\u003ctd\u003e542 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-084S\u003c\/td\u003e\n\u003ctd\u003e1\/2 ODF\u003c\/td\u003e\n\u003ctd\u003e149 mm\u003c\/td\u003e\n\u003ctd\u003e66.5 mm\u003c\/td\u003e\n\u003ctd\u003e12.8 mm\u003c\/td\u003e\n\u003ctd\u003e11 mm\u003c\/td\u003e\n\u003ctd\u003e155 mm\u003c\/td\u003e\n\u003ctd\u003e558 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-164S\u003c\/td\u003e\n\u003ctd\u003e1\/2 ODF\u003c\/td\u003e\n\u003ctd\u003e161 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e12.8 mm\u003c\/td\u003e\n\u003ctd\u003e11 mm\u003c\/td\u003e\n\u003ctd\u003e167 mm\u003c\/td\u003e\n\u003ctd\u003e773 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-165S\u003c\/td\u003e\n\u003ctd\u003e5\/8 ODF\u003c\/td\u003e\n\u003ctd\u003e161 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e16.1 mm\u003c\/td\u003e\n\u003ctd\u003e11 mm\u003c\/td\u003e\n\u003ctd\u003e167 mm\u003c\/td\u003e\n\u003ctd\u003e780 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-305S\u003c\/td\u003e\n\u003ctd\u003e5\/8 ODF\u003c\/td\u003e\n\u003ctd\u003e236 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e16.1 mm\u003c\/td\u003e\n\u003ctd\u003e11 mm\u003c\/td\u003e\n\u003ctd\u003e242 mm\u003c\/td\u003e\n\u003ctd\u003e1,227 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-306S\u003c\/td\u003e\n\u003ctd\u003e3\/4 ODF\u003c\/td\u003e\n\u003ctd\u003e241 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e19.1 mm\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003ctd\u003e247 mm\u003c\/td\u003e\n\u003ctd\u003e1,232 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-307S\u003c\/td\u003e\n\u003ctd\u003e7\/8 ODF\u003c\/td\u003e\n\u003ctd\u003e247 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e22.3 mm\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003ctd\u003e253 mm\u003c\/td\u003e\n\u003ctd\u003e1,242 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBFK-309S\u003c\/td\u003e\n\u003ctd\u003e1-1\/8 ODF\u003c\/td\u003e\n\u003ctd\u003e256 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003ctd\u003e28.7 mm\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e262 mm\u003c\/td\u003e\n\u003ctd\u003e1,280 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModels without the \u003ccode dir=\"ltr\"\u003eS\u003c\/code\u003e suffix use SAE flare connections.\u003c\/li\u003e\n\u003cli\u003eModels ending in \u003ccode dir=\"ltr\"\u003eS\u003c\/code\u003e use ODF solder connections.\u003c\/li\u003e\n\u003cli\u003eSelect the model according to pipe size, connection method, refrigerant and system operating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBidirectional refrigeration liquid lines\u003c\/li\u003e\n\u003cli\u003eReversible air-conditioning systems\u003c\/li\u003e\n\u003cli\u003eCommercial refrigeration equipment\u003c\/li\u003e\n\u003cli\u003eCold-room refrigeration systems\u003c\/li\u003e\n\u003cli\u003eCondensing units\u003c\/li\u003e\n\u003cli\u003eRefrigeration heat-pump systems\u003c\/li\u003e\n\u003cli\u003eSystems using HCFC or HFC refrigerants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003ePlease provide the following information when requesting a quotation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequired model\u003c\/li\u003e\n\u003cli\u003ePipe connection size\u003c\/li\u003e\n\u003cli\u003eSAE flare or ODF solder connection\u003c\/li\u003e\n\u003cli\u003eRefrigerant type\u003c\/li\u003e\n\u003cli\u003eSystem working pressure\u003c\/li\u003e\n\u003cli\u003eRequired quantity\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HONGSEN","offers":[{"title":"SAE Flare \/ BFK-083","offer_id":44103367917627,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true},{"title":"SAE Flare \/ BFK-084","offer_id":44103367950395,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true},{"title":"SAE Flare \/ BFK-164","offer_id":44103367983163,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"SAE Flare \/ BFK-165","offer_id":44103368015931,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-083S","offer_id":44103368179771,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-084S","offer_id":44103368212539,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-164S","offer_id":44103368245307,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-165S","offer_id":44103368278075,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-305S","offer_id":44103368310843,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-306S","offer_id":44103368343611,"sku":null,"price":15.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-307S","offer_id":44103368376379,"sku":null,"price":16.0,"currency_code":"USD","in_stock":true},{"title":"ODF Solder \/ BFK-309S","offer_id":44103368409147,"sku":null,"price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/8920\/8123\/files\/2026-09-03_110340_924.png?v=1788404661","url":"https:\/\/xiaxuecoldroom.com\/products\/hongsen-bfk-bi-flow-refrigeration-filter-driers","provider":"XIAXUE Refrigeration","version":"1.0","type":"link"}