{"product_id":"foster-bl50fs-fst-series","title":"Foster BL50FS, 1\/2\" Straight-Thru Coupler x 1\/2\" Female NPT, FST Series, Ball Lock, Brass","description":"\u003cp\u003eMaximum-flow connections for air, fluid, and vacuum lines. The Foster \u003cstrong\u003eBL50FS\u003c\/strong\u003e is a brass 1\/2\" coupler from the FST Straight-Thru Series - with NO valve in either half, so the coupling flows as freely as the pipe itself. Standard industrial interchange, rated to 2200 PSI.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Foster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e FST (Straight-Thru, Industrial Interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BL50FS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e 1\/2\" Standard Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e 1\/2\" Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/2\" Female NPT, FPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Straight-Thru - NO valve in socket or plug (full flow)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual sleeve (retract to connect and disconnect)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking:\u003c\/strong\u003e Ball Lock - rotate sleeve to lock against accidental disconnect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e Inside diameter same as nominal pipe - maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal:\u003c\/strong\u003e Buna-N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 2200 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Service:\u003c\/strong\u003e 27 in. Hg maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40F to +250F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ANSI\/B93.2, 4:1 safety factor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1pc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy this coupler\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight-thru, no valve\u003c\/strong\u003e — which means unrestricted full flow with minimal pressure drop, ideal for air, fluid transfer, and vacuum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame ID as nominal pipe\u003c\/strong\u003e — which means the coupling does not choke your line, maximizing flow and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard industrial interchange\u003c\/strong\u003e — which means it couples with the most widely used industrial coupler design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrass construction\u003c\/strong\u003e — which means corrosion resistance for water, air, and many fluids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall lock option\u003c\/strong\u003e — which means the sleeve rotates to lock against accidental disconnect under load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does straight-thru mean?\u003c\/strong\u003e\u003cbr\u003eThere is no shut-off valve in either the socket or the plug, so the coupling flows as freely as the pipe — maximum flow, minimal pressure drop. Note: lines do not self-seal on disconnect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this connect to?\u003c\/strong\u003e\u003cbr\u003eStandard industrial interchange — only same-size FST sockets and plugs couple together.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is it rated for?\u003c\/strong\u003e\u003cbr\u003eRated to 2200 PSI (brass, 1\/2\"), per ANSI\/B93.2, 4:1 safety factor.\u003c\/p\u003e\u003cp\u003eIdeal for high-flow air, fluid transfer, and vacuum lines where shut-off is not needed. Pair this coupler with a matching 1\/2\" FST plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy from hpcouplers:\u003c\/strong\u003e Foster quality, responsive US-based support, accurate specs, fast shipping.\u003c\/p\u003e","brand":"Foster","offers":[{"title":"Default Title","offer_id":45534658854959,"sku":"FOST BL50FS (1)","price":438.0,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9849\/files\/Foster_Stock_Image_v1.png?v=1781220743","url":"https:\/\/www.hpcouplers.com\/en-mx\/products\/foster-bl50fs-fst-series","provider":"hpcouplers","version":"1.0","type":"link"}