{"product_id":"bsp-male-female-reducing-bush-stainless-steel-pipe-fitting","title":"BSP Male to Female Reducing Bush Stainless Steel Pipe Fitting Adapter","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBSP Male to Female Reducing Bush — Step Down Pipe Sizes Without Replacing Your Fittings\u003c\/h2\u003e\n\u003cp\u003eWhen your manifold, valve body, or pump port is a larger BSP size than the line you need to connect, swapping out the entire fitting assembly wastes time and money. Plumbers, hydraulic technicians, and industrial maintenance crews rely on a BSP male to female reducing bush to bridge the gap cleanly — one compact piece threaded directly into the existing port, ready to accept the smaller line.\u003c\/p\u003e\n\u003cp\u003eEach piece is machined from stainless steel, delivering corrosion resistance and mechanical strength across a wide range of service conditions. The male (outer) thread screws into your existing female BSP port, while the female (inner) thread accepts the smaller male fitting or pipe end. Available in 44 size combinations spanning female ports from 1\/8\" up to 3\" and male outlets from 1\/4\" up to 4\", so you can match virtually any step-down requirement in your system.\u003c\/p\u003e\n\u003cp\u003eTypical applications include reducing port sizes on hydraulic manifolds and valve blocks, adapting compressed air distribution headers to smaller branch lines, stepping down water supply connections in commercial plumbing systems, and fitting instrumentation or gauge connections into larger process pipe bodies — all scenarios where a stainless steel BSP reducing bush adapter keeps the installation clean and leak-free.\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 Standard:\u003c\/strong\u003e BSP (British Standard Pipe) — compatible with BSPP and BSPT systems. \u003cstrong\u003eNot directly interchangeable with NPT threads.\u003c\/strong\u003e Confirm your system's thread standard before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSize Selection:\u003c\/strong\u003e Variant names use F (Female port) × M (Male outlet) notation — e.g., F1\/2\" × M1\/4\" means the bush screws into a 1\/2\" female port and accepts a 1\/4\" male fitting. Use a thread gauge to verify your existing port size if unsure.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These BSP Reducing Bush Stainless Steel Fittings\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-Female Reducing Design\u003c\/strong\u003e — The hex-body reducing bush threads directly into an existing female BSP port and provides a smaller female outlet, eliminating the need to re-tap or replace the host fitting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStainless Steel Construction\u003c\/strong\u003e — Machined from stainless steel for resistance to rust, oxidation, and mild chemical exposure — suitable for outdoor plumbing, marine, and industrial environments where carbon steel would corrode.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e44 Size Combinations\u003c\/strong\u003e — Female ports from 1\/8\" to 3\" paired with male outlets from 1\/4\" to 4\" cover the full range of BSP reducing bush adapter needs from small instrumentation lines to large-bore industrial pipe.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eHex-Body Wrench Grip\u003c\/strong\u003e — The external hex profile allows standard open-end or adjustable wrenches to apply proper torque during installation, reducing the risk of cross-threading or under-tightening in tight spaces.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLeak-Resistant Thread Form\u003c\/strong\u003e — BSP threads are designed for use with PTFE tape or liquid thread sealant to form a reliable, pressure-rated seal in water, air, oil, and hydraulic fluid systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBroad System Compatibility\u003c\/strong\u003e — BSP is the dominant thread standard across the UK, Europe, Australia, and Asia, making these stainless steel pipe reducing bushes a direct fit for imported equipment, OEM machinery, and international plumbing systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Reducing Bush Pipe Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eMale to Female Reducing Bush (Reducer Bushing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe — BSPP \/ BSPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFemale Port Size Range\u003c\/th\u003e\n\u003ctd\u003e1\/8\" to 3\" BSP (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMale Outlet Size Range\u003c\/th\u003e\n\u003ctd\u003e1\/4\" to 4\" BSP (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Size Combinations\u003c\/th\u003e\n\u003ctd\u003e44 variants — see variant options above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody Shape\u003c\/th\u003e\n\u003ctd\u003eHex body for wrench installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural stainless steel (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Sealant\u003c\/th\u003e\n\u003ctd\u003ePTFE tape or liquid thread compound (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm for your specific size and application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Media\u003c\/th\u003e\n\u003ctd\u003eWater, compressed air, hydraulic oil, mild chemicals (confirm for aggressive media)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece (1pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right reducing bush size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect the \u003cstrong\u003eF (Female)\u003c\/strong\u003e size to match your existing port — this is the thread that screws into your manifold, valve, or pipe body. Then select the \u003cstrong\u003eM (Male)\u003c\/strong\u003e size to match the smaller pipe or fitting you are connecting. For example, if your pump has a 1\/2\" BSP port and you need to connect a 1\/4\" instrument line, choose \u003cstrong\u003eF1\/2\" × M1\/4\"\u003c\/strong\u003e. If you are unsure of your port size, use a thread pitch gauge or caliper to measure the thread diameter and pitch before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating can these reducing bushes handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless steel BSP reducing bushes are generally rated for working pressures up to approximately 150 PSI (≈10 bar) in standard water and air plumbing applications. Actual pressure capacity depends on the specific size, wall thickness, and the nature of the media. For high-pressure hydraulic circuits or steam lines, please contact us to confirm suitability for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Stainless steel provides strong resistance to rust, oxidation, and many corrosive substances, making these BSP reducing bush fittings well-suited for outdoor plumbing installations, marine environments, food-processing adjacent systems, and industrial settings where carbon steel fittings would corrode prematurely. For highly aggressive chemicals or saltwater immersion, contact us to confirm material compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these fittings use — and is it compatible with NPT?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings use \u003cstrong\u003eBSP (British Standard Pipe)\u003c\/strong\u003e threads, which are common in the UK, Europe, Australia, and Asia. BSP threads have a 55° thread angle and are \u003cstrong\u003enot directly interchangeable with NPT (National Pipe Taper)\u003c\/strong\u003e threads, which have a 60° angle and are standard in North America. Mixing BSP and NPT threads without a proper conversion adapter will typically result in cross-threading or leaks. Always verify your system's thread standard before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these for compressed air or gas lines?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless steel BSP reducing bushes are generally suitable for compressed air distribution systems when properly sealed with PTFE tape or an approved thread sealant. For natural gas or LPG lines, always verify compliance with local building codes and consult a licensed gas fitter — regulations vary by jurisdiction and not all fittings are approved for gas service without specific certification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant, and which type should I use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, thread sealant is typically required. For \u003cstrong\u003eBSPP (parallel) threads\u003c\/strong\u003e, the threads do not seal on their own — apply PTFE tape (2–3 wraps on the male thread) or a liquid thread compound before assembly. For \u003cstrong\u003eBSPT (tapered) threads\u003c\/strong\u003e, the taper provides some mechanical seal, but sealant is still recommended for most pressure applications. Always apply sealant to the male threads, not the female port, and avoid over-tightening, which can crack the fitting body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a reducing bush and a reducing coupling?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA \u003cstrong\u003ereducing bush\u003c\/strong\u003e (also called a reducer bushing or hex bush) has \u003cem\u003emale threads on the outside\u003c\/em\u003e and \u003cem\u003efemale threads on the inside\u003c\/em\u003e. It screws into an existing female port and provides a smaller female outlet — ideal for stepping down a port in a valve body, manifold, or pump. A \u003cstrong\u003ereducing coupling\u003c\/strong\u003e has female threads on both ends and joins two male pipe ends of different sizes. Choose a reducing bush when you need to adapt a port; choose a coupling when you need to join two pipe ends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"F1\u00268\" ** M1\u00264\" \/ 1pcs","offer_id":52336594059538,"sku":"LFLHYJJ00285x1","price":5.43,"currency_code":"USD","in_stock":true},{"title":"F1\u00268\" ** M3\u00268\" \/ 1pcs","offer_id":52336594092306,"sku":"LFLHYJJ00283x1","price":5.83,"currency_code":"USD","in_stock":true},{"title":"F1\u00268\" ** M1\u00262\" \/ 1pcs","offer_id":52336594125074,"sku":"LFLHYJJ00286x1","price":6.53,"currency_code":"USD","in_stock":true},{"title":"F1\u00268\" ** M3\u00264\" \/ 1pcs","offer_id":52336594157842,"sku":"LFLHYJJ00278x1","price":9.72,"currency_code":"USD","in_stock":true},{"title":"F1\u00264\" ** M3\u00268\" \/ 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