{"product_id":"brass-hose-barb-bsp-thread-connector-male-female-reducer","title":"Brass Hose Barb to BSP Thread Connector – 1\/4” 3\/8” 1\/2” Male\/Female Pipe Fitting Reducer","description":"\u003ch2\u003eBrass Hose Barb to BSP Thread Connector – 1\/4” to 1\/2” Male\/Female Reducer\u003c\/h2\u003e\n\n\u003cp\u003eA precision-machined brass fitting that transitions between a barbed hose tail (for flexible hose) and a BSP threaded port (for rigid pipe or equipment). The barbed tail grips the inner bore of flexible hose; the BSP thread connects to valves, pumps, compressors, and manifolds. Available in male BSP (external thread) and female BSP (internal thread) configurations, and in reducing variants that connect two different hose or pipe sizes in a single fitting.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Free-machining brass (CuZn39Pb3)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard:\u003c\/strong\u003e BSP (BSPP — parallel thread, ISO 228-1)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBSP Sizes:\u003c\/strong\u003e 1\/4”, 3\/8”, 1\/2” (male or female, select above)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHose Barb ID:\u003c\/strong\u003e Matches nominal hose inner diameter (e.g., 1\/4” barb for 6mm ID hose)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e Up to 150 PSI (10 bar) for water\/air; lower for fuel applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20°C to +120°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Air, water, fuel, light oil (verify chemical compatibility for aggressive fluids)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHose Barb Sizing — ID vs OD Explained\u003c\/h3\u003e\n\u003cp\u003eHose barb fittings are sized by the \u003cstrong\u003einner diameter (ID) of the hose\u003c\/strong\u003e they accept, not the outer diameter. This is a common source of ordering errors:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA \u003cstrong\u003e1\/4” (6mm) barb\u003c\/strong\u003e fits hose with 6mm inner bore — the hose OD will be larger depending on wall thickness\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003e3\/8” (10mm) barb\u003c\/strong\u003e fits hose with 10mm inner bore\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003e1\/2” (12mm) barb\u003c\/strong\u003e fits hose with 12mm inner bore\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways measure the hose inner bore, not the outer diameter, when selecting a barb fitting.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Questions Does This Product Answer?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Do I need PTFE tape on a BSP hose barb fitting?\"\u003c\/em\u003e — BSPP (parallel) threads do not self-seal. Use a bonded seal washer (dowty washer) on the male thread shoulder, or apply PTFE tape as a temporary measure. For permanent installations, use anaerobic thread sealant (e.g., Loctite 577).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"What hose clamp should I use with a brass barb fitting?\"\u003c\/em\u003e — Use a worm-drive (Jubilee) clamp or ear clamp positioned 5–10mm from the end of the barb. For high-pressure applications, use two clamps per barb. Avoid over-tightening on brass barbs — the soft brass can deform.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Can I use brass fittings with fuel?\"\u003c\/em\u003e — Yes for petrol (gasoline), diesel, and light oils. Not suitable for ethanol concentrations above E20 or aggressive solvents. For E85 or methanol fuel systems, use stainless steel or PTFE-lined fittings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"What is the difference between a reducing barb and a straight barb?\"\u003c\/em\u003e — A straight barb has the same hose ID on both ends. A reducing barb has different IDs on each end, allowing connection between two different hose sizes in a single fitting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomotive:\u003c\/strong\u003e Coolant hose connections, fuel line adapters, vacuum line fittings, intercooler hose connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir compressors:\u003c\/strong\u003e Flexible hose to compressor outlet, regulator inlet connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIrrigation:\u003c\/strong\u003e Garden hose to threaded valve connections, drip system adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine:\u003c\/strong\u003e Bilge pump hose connections, raw water intake fittings, fuel tank vent adapters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial:\u003c\/strong\u003e Coolant system hose connections, lubrication line adapters, hydraulic return line fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePush hose fully onto the barb until the hose end contacts the fitting shoulder — partial insertion causes leaks and hose blowoff under pressure\u003c\/li\u003e\n  \u003cli\u003eFor fuel and high-pressure applications, use a proper hose clamp rated for the application pressure\u003c\/li\u003e\n  \u003cli\u003eApply thread sealant to the BSP thread before assembly; do not rely on thread interference alone for BSPP parallel threads\u003c\/li\u003e\n  \u003cli\u003eInspect brass fittings for dezincification (pitting, white powder deposits) in high-chloride water systems; replace if dezincification is evident\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e1 × Brass hose barb to BSP thread connector (size and configuration as selected above).\u003c\/p\u003e","brand":"Cable Parts 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