{"product_id":"304-ss-reducing-hex-nipple-bsp-male-thread-pipe-fitting","title":"304 Stainless Steel Reducing Hex Nipple BSP Male Thread Pipe Fitting | 1\/8\" to 2\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e304 Stainless Steel Reducing Hex Nipple — Connect Different BSP Pipe Sizes Without Adapters\u003c\/h2\u003e\n\u003cp\u003eWhen your pipe run changes diameter mid-system, finding a reliable reducing hex nipple with BSP male threads on both ends can be a real challenge. Plumbers, irrigation installers, and industrial maintenance crews all face the same problem: mismatched pipe sizes that need a compact, leak-free transition. These 304 stainless steel reducing hex nipples are built for exactly that job — delivering a solid male-to-male BSP threaded connection between two different pipe diameters in a single compact fitting.\u003c\/p\u003e\n\u003cp\u003eEach listing is for 1 piece. The fitting features male BSP (British Standard Pipe) threads on both ends — a larger thread on one side and a smaller thread on the other — machined from 304 stainless steel for durability and corrosion resistance. Available in 24 size combinations ranging from 1\/8\" BSP (DN6) up to 2\" BSP (DN50), covering the most common reducing transitions used in residential, commercial, and light industrial plumbing. The hex body allows easy wrench installation without slipping.\u003c\/p\u003e\n\u003cp\u003eThese reducing hex nipples are well suited for water supply lines where pipe diameter steps down between zones, compressed air distribution systems that branch from a main trunk line to smaller tool feeds, and irrigation manifolds connecting a larger header pipe to individual zone valves. The compact hex body keeps the transition short, saving space in tight pipe chases or valve boxes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eThread Compatibility:\u003c\/strong\u003e Both ends are BSP (British Standard Pipe) male threads. Confirm your fittings, valves, or pipe sockets use BSP female threads before ordering. BSP is \u003cem\u003enot\u003c\/em\u003e interchangeable with NPT (National Pipe Taper) threads.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSize Selection Note:\u003c\/strong\u003e The first size in each variant is the \u003cstrong\u003elarger\u003c\/strong\u003e (inlet) end; the second size is the \u003cstrong\u003esmaller\u003c\/strong\u003e (outlet) end. Example: \"3\/4\\\" to 1\/2\\\" BSP\" = 3\/4\\\" male on one side, 1\/2\\\" male on the other. Verify both pipe thread sizes before adding to cart.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These BSP Reducing Hex Nipples\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMale-to-Male BSP Threads on Both Ends\u003c\/strong\u003e — Designed as a reducing hex nipple with BSP male threads, this fitting connects two female-threaded ports of different sizes without needing a separate union or adapter.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e — Machined from 304 SS for resistance to rust, oxidation, and general corrosion — a reliable choice for water lines, air systems, and outdoor plumbing applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eHex Body for Wrench Grip\u003c\/strong\u003e — The six-sided hex profile gives your pipe wrench or adjustable wrench a solid, slip-free grip during installation, reducing the risk of rounding or thread damage.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e24 Size Combinations — DN6 to DN50\u003c\/strong\u003e — Covers reducing transitions from 1\/8\" BSP (DN6) all the way up to 2\" BSP (DN50), making it easy to find the exact male thread pipe fitting reducer your system needs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSuitable for Water, Air, and Mild Fluids\u003c\/strong\u003e — Generally compatible with potable water, compressed air, steam (low pressure), and light oils — versatile enough for plumbing, HVAC, and irrigation use cases.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eCompact Reducing Profile\u003c\/strong\u003e — The short body length keeps the diameter transition tight and space-efficient, ideal for valve boxes, manifold assemblies, and confined pipe chases where a bulky fitting won't fit.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Reducing Hex Nipple Pipe Fitting\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe) — Male on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eBSPT (tapered) — See variant options; confirm with your system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range (Larger End)\u003c\/th\u003e\n\u003ctd\u003e1\/8\" BSP (DN6) to 2\" BSP (DN50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range (Smaller End)\u003c\/th\u003e\n\u003ctd\u003e1\/8\" BSP (DN6) to 1-1\/2\" BSP (DN40)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Size Combinations\u003c\/th\u003e\n\u003ctd\u003e24 variants — see dropdown above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHex Body\u003c\/th\u003e\n\u003ctd\u003eYes — wrench-ready six-sided profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBrushed \/ mill finish stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking Pressure\u003c\/th\u003e\n\u003ctd\u003eTypically up to 150 PSI (≈10 bar) — contact us to confirm for your application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Fluids\u003c\/th\u003e\n\u003ctd\u003eWater, air, steam (low pressure), light oils, mild chemicals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size reducing hex nipple for my pipe system?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIdentify the BSP thread size on both the larger and smaller pipe ends. The first size listed in each variant is the \u003cstrong\u003elarger (inlet) end\u003c\/strong\u003e and the second is the \u003cstrong\u003esmaller (outlet) end\u003c\/strong\u003e. For example, \"3\/4\\\" to 1\/2\\\" BSP\" means the larger port is 3\/4\\\" and the smaller port is 1\/2\\\".\u003c\/p\u003e\n\u003cp\u003eBSP sizes correspond to DN nominal diameters: 1\/8\\\" = DN6, 1\/4\\\" = DN8, 3\/8\\\" = DN10, 1\/2\\\" = DN15, 3\/4\\\" = DN20, 1\\\" = DN25, 1-1\/4\\\" = DN32, 1-1\/2\\\" = DN40, 2\\\" = DN50.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating do these reducing hex nipples typically handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel hex nipples generally handle working pressures up to \u003cstrong\u003e150 PSI (approximately 10 bar)\u003c\/strong\u003e in standard plumbing and fluid systems. For high-pressure applications, please contact us to confirm suitability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these fittings be used outdoors or in corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. 304 stainless steel offers good resistance to rust, oxidation, and mild corrosion, making it suitable for outdoor plumbing, irrigation systems, and light marine environments. For highly aggressive chemical or saltwater exposure, 316 stainless steel is typically recommended instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre BSP threads compatible with NPT fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo — BSP (British Standard Pipe) and NPT (National Pipe Taper) threads are \u003cstrong\u003enot directly interchangeable\u003c\/strong\u003e. BSP threads have a 55° thread angle while NPT uses 60°. Mixing them can cause leaks or cross-threading. Always confirm your existing pipe system uses BSP threads before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant with these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. BSPT (tapered) threads generally require \u003cstrong\u003ePTFE tape or thread sealant compound\u003c\/strong\u003e to achieve a leak-free seal. Apply 2–3 wraps of PTFE tape in the direction of the thread before assembly. BSPP (parallel) threads typically require a bonded seal or O-ring at the face instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat fluids are these stainless steel pipe fittings compatible with?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003e304 stainless steel reducing hex nipples are generally compatible with \u003cstrong\u003ewater, air, steam (low pressure), oils, and many mild chemicals\u003c\/strong\u003e. They are not recommended for strong acids, chloride-rich solutions, or highly alkaline fluids without further verification. Contact us if you need to confirm compatibility for a specific fluid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tool do I use to install a hex nipple?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eUse a \u003cstrong\u003epipe wrench or adjustable wrench\u003c\/strong\u003e on the hex body of the nipple. The six-sided hex design provides a secure grip surface, allowing you to tighten the fitting without damaging the threads. Avoid over-tightening, which can stress the fitting or the connected pipe threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003esize combination\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1\u00264\" to 1\u00268\" BSP (DN8 to DN6) \/ 1 pcs","offer_id":52336604250386,"sku":"PENG026027x1","price":9.7,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" to 1\u00268\" BSP (DN10 to DN6) \/ 1 pcs","offer_id":52336604283154,"sku":"PENG026028x1","price":9.7,"currency_code":"USD","in_stock":true},{"title":"3\u00268\" to 1\u00264\" BSP (DN10 to DN8) \/ 1 pcs","offer_id":52336604315922,"sku":"PENG026029x1","price":9.7,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" to 1\u00268\" BSP (DN15 to DN6) \/ 1 pcs","offer_id":52336604348690,"sku":"PENG026030x1","price":11.06,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" to 1\u00264\" BSP (DN15 to DN8) \/ 1 pcs","offer_id":52336604381458,"sku":"PENG026031x1","price":11.53,"currency_code":"USD","in_stock":true},{"title":"1\u00262\" to 3\u00268\" BSP (DN15 to DN10) \/ 1 pcs","offer_id":52336604414226,"sku":"PENG026032x1","price":12.08,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" to 1\u00264\" BSP (DN20 to DN8) \/ 1 pcs","offer_id":52336604446994,"sku":"PENG026033x1","price":12.48,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" to 3\u00268\" BSP (DN20 to DN10) \/ 1 pcs","offer_id":52336604479762,"sku":"PENG026034x1","price":12.92,"currency_code":"USD","in_stock":true},{"title":"3\u00264\" to 1\u00262\" BSP (DN20 to DN15) \/ 1 pcs","offer_id":52336604512530,"sku":"PENG026035x1","price":12.1,"currency_code":"USD","in_stock":true},{"title":"1\" to 3\u00268\" BSP (DN25 to DN10) \/ 1 pcs","offer_id":52336604545298,"sku":"PENG026036x1","price":15.2,"currency_code":"USD","in_stock":true},{"title":"1\" to 1\u00262\" BSP (DN25 to DN15) \/ 1 pcs","offer_id":52336604578066,"sku":"PENG026037x1","price":15.2,"currency_code":"USD","in_stock":true},{"title":"1\" to 3\u00264\" BSP (DN25 to DN20) \/ 1 pcs","offer_id":52336604610834,"sku":"PENG026038x1","price":15.75,"currency_code":"USD","in_stock":true},{"title":"1-1\u00264\" to 1\u00262\" BSP (DN32 to DN15) \/ 1 pcs","offer_id":52336604643602,"sku":"PENG026039x1","price":24.34,"currency_code":"USD","in_stock":true},{"title":"1-1\u00264\" to 3\u00264\" BSP (DN32 to DN20) \/ 1 pcs","offer_id":52336604676370,"sku":"PENG026040x1","price":24.62,"currency_code":"USD","in_stock":true},{"title":"1-1\u00264\" to 1\" BSP (DN32 to DN25) \/ 1 pcs","offer_id":52336604709138,"sku":"PENG026041x1","price":21.9,"currency_code":"USD","in_stock":true},{"title":"1-1\u00262\" to 1\u00262\" BSP (DN40 to DN15) \/ 1 pcs","offer_id":52336604741906,"sku":"PENG026042x1","price":28.7,"currency_code":"USD","in_stock":true},{"title":"1-1\u00262\" to 3\u00264\" BSP (DN40 to DN20) \/ 1 pcs","offer_id":52336604774674,"sku":"PENG026043x1","price":29.08,"currency_code":"USD","in_stock":true},{"title":"1-1\u00262\" to 1\" BSP (DN40 to DN25) \/ 1 pcs","offer_id":52336604807442,"sku":"PENG026044x1","price":29.35,"currency_code":"USD","in_stock":true},{"title":"1-1\u00262\" to 1-1\u00264\" BSP (DN40 to DN32) \/ 1 pcs","offer_id":52336604840210,"sku":"PENG026045x1","price":30.06,"currency_code":"USD","in_stock":true},{"title":"2\" to 1\u00262\" BSP (DN50 to DN15) \/ 1 pcs","offer_id":52336604872978,"sku":"PENG026046x1","price":43.11,"currency_code":"USD","in_stock":true},{"title":"2\" to 3\u00264\" BSP (DN50 to DN20) \/ 1 pcs","offer_id":52336604905746,"sku":"PENG026047x1","price":43.11,"currency_code":"USD","in_stock":true},{"title":"2\" to 1\" BSP (DN50 to DN25) \/ 1 pcs","offer_id":52336604938514,"sku":"PENG026048x1","price":43.66,"currency_code":"USD","in_stock":true},{"title":"2\" to 1-1\u00264\" BSP (DN50 to DN32) \/ 1 pcs","offer_id":52336604971282,"sku":"PENG026049x1","price":44.31,"currency_code":"USD","in_stock":true},{"title":"2\" to 1-1\u00262\" BSP (DN50 to DN40) \/ 1 pcs","offer_id":52336605004050,"sku":"PENG026050x1","price":44.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-02_9ad6926f-6a74-438b-80e2-91af0ab60e46.jpg?v=1781071602","url":"https:\/\/homediyer.com\/de\/products\/304-ss-reducing-hex-nipple-bsp-male-thread-pipe-fitting","provider":"HomeDIYer","version":"1.0","type":"link"}