{"product_id":"bsp-male-to-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\u003ch2\u003eBSP Male to Female Reducing Bush — Stainless Steel Pipe Fitting Adapter for Reliable Size Reduction\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003cp\u003eWhen a pipe system changes diameter mid-run — at a pump inlet, tank outlet, or manifold port — a mismatched thread size can stall an entire installation. Plumbers, pipefitters, and DIY homeowners working on water supply, compressed air, hydraulic, or industrial fluid systems need a reducing bush that threads in cleanly, holds pressure, and doesn't corrode over time. These BSP male to female reducing bushes are built for exactly that job.\u003c\/p\u003e\n\u003cp\u003eEach piece is a single-body stainless steel reducing bush with a larger female BSP thread on one end and a smaller male BSP thread on the other. Female (socket) sizes range from 1\/2\" to 3\", and male (spigot) sizes range from 2\" to 4\", covering a wide span of common pipe reduction combinations. Both ends are machined to BSP thread standards. Sold individually (1 pc per order); select your required F × M combination from the variant menu above.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include reducing a 2\" female port down to a 1\" male outlet on a water pump, stepping down manifold connections in compressed-air distribution lines, and adapting tank fittings in irrigation or industrial fluid-transfer systems — all situations where a durable, corrosion-resistant BSP reducing bush is the right solution.\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 BSP (British Standard Pipe) threads — compatible with BSPP (G) parallel and BSPT (R\/Rc) tapered BSP systems. \u003cstrong\u003eNot directly compatible with NPT threads.\u003c\/strong\u003e Verify your existing pipe thread standard before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These BSP Male to Female Stainless Steel Reducing Bushes\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Size Range\u003c\/strong\u003e — Female ports from 1\/2\" to 3\" paired with male outlets from 2\" to 4\", covering the most common BSP pipe reducing bush combinations in one product line.\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 corrosion resistance in water, air, oil, and mild chemical service — suitable for indoor plumbing, outdoor installations, and marine-adjacent environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePrecision BSP Thread Form\u003c\/strong\u003e — Both male and female ends are machined to BSP thread standards, ensuring consistent engagement with BSP-threaded valves, pumps, tanks, and pipe fittings without cross-threading or galling.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eReducing Bush Design\u003c\/strong\u003e — Single-body hex-profile bush allows installation and removal with a standard pipe wrench or spanner — no additional coupling or nipple required to reduce pipe diameter.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePressure-Capable for Fluid Systems\u003c\/strong\u003e — Suitable for water supply lines, compressed-air distribution, hydraulic circuits, and industrial fluid-transfer applications where a reliable stainless steel BSP adapter is required.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSold Individually, Ships Ready\u003c\/strong\u003e — Each order contains 1 reducing bush in your selected size combination, packaged and shipped from our US warehouse — no minimum order quantity required.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — BSP Male to Female Reducing Bush\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\u003eBSP Male to Female Reducing Bush (Pipe Adapter)\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\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe) — BSPP (G) or BSPT (R\/Rc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFemale (Socket) Thread Sizes\u003c\/th\u003e\n\u003ctd\u003e1\/2\", 3\/4\", 1\", 1-1\/4\", 1-1\/2\", 2\", 2-1\/2\", 3\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMale (Spigot) Thread Sizes\u003c\/th\u003e\n\u003ctd\u003e2\", 2-1\/2\", 3\", 4\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Combinations\u003c\/th\u003e\n\u003ctd\u003eSee variant options (21 size combinations available)\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\u003eWorking Pressure\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm for your specific size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Systems\u003c\/th\u003e\n\u003ctd\u003eWater supply, compressed air, hydraulic, industrial fluid transfer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNPT Compatibility\u003c\/th\u003e\n\u003ctd\u003eNot directly compatible — BSP-to-NPT adapter required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eBefore ordering:\u003c\/strong\u003e Confirm your existing pipe thread standard is BSP (not NPT or metric). Use a thread gauge or caliper to verify thread pitch and diameter if unsure. BSP and NPT threads are not interchangeable.\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 BSP reducing bush?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the female (larger) port first, then the male (smaller) outlet. BSP sizes are nominal — for example, a 1\" BSP fitting has an actual thread OD of approximately 33.25 mm (1.309\"). Select the variant that matches your existing pipe thread sizes. When in doubt, measure with a thread gauge or caliper rather than relying on pipe OD alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating can I expect from these stainless steel reducing bushes?\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 150 PSI (approximately 10 bar) in standard plumbing and fluid-transfer applications. Actual ratings depend on size, wall thickness, and installation conditions. Contact us to confirm the rating for your specific variant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings suitable for outdoor or marine use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Stainless steel offers strong corrosion resistance and is typically suitable for outdoor, marine, and humid environments. For highly aggressive environments (salt spray, chemical exposure), confirm the grade with us before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these fittings use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings use BSP (British Standard Pipe) threads — also known as G threads (parallel) or R\/Rc threads (tapered). BSP is widely used in plumbing, hydraulics, and pneumatics outside North America and is compatible with most BSP-threaded valves, pumps, and pipe systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these fittings with NPT-threaded pipes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBSP and NPT threads are not directly interchangeable — they have different thread angles (55° vs 60°) and pitch. In some sizes they may appear to engage, but this can result in leaks or damage. Use a BSP-to-NPT adapter if you need to connect to NPT-threaded components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat fluids or media are these reducing bushes compatible with?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless steel BSP reducing bushes are generally compatible with water, air, oil, and many mild chemicals. Compatibility with aggressive acids, solvents, or high-chloride environments should be verified based on the specific stainless steel grade. Contact us to confirm suitability for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant when installing these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eFor tapered BSP (BSPT\/R) threads, PTFE tape or thread sealant compound is typically recommended to achieve a leak-free seal. For parallel BSP (BSPP\/G) threads, a bonded seal washer or O-ring face seal is generally used instead of tape. Check your fitting type before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003etype and size 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":"F1\u00262\" ** M2\" \/ 1pcs","offer_id":52336741744914,"sku":"LFLHYJJ02244x1","price":33.97,"currency_code":"USD","in_stock":true},{"title":"F1\u00262\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336741777682,"sku":"LFLHYJJ02241x1","price":55.19,"currency_code":"USD","in_stock":true},{"title":"F3\u00264\" ** M2\" \/ 1pcs","offer_id":52336741810450,"sku":"LFLHYJJ02243x1","price":46.76,"currency_code":"USD","in_stock":true},{"title":"F3\u00264\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336741843218,"sku":"LFLHYJJ02234x1","price":43.22,"currency_code":"USD","in_stock":true},{"title":"F1\" ** M2\" \/ 1pcs","offer_id":52336741875986,"sku":"LFLHYJJ02231x1","price":34.52,"currency_code":"USD","in_stock":true},{"title":"F1\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336741908754,"sku":"LFLHYJJ02232x1","price":57.91,"currency_code":"USD","in_stock":true},{"title":"F1\" ** M4\" \/ 1pcs","offer_id":52336741941522,"sku":"LFLHYJJ02233x1","price":142.66,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00264\" ** M2\" \/ 1pcs","offer_id":52336741974290,"sku":"LFLHYJJ02235x1","price":36.15,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00264\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336742007058,"sku":"LFLHYJJ02237x1","price":56.0,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00264\" ** M3\" \/ 1pcs","offer_id":52336742039826,"sku":"LFLHYJJ02240x1","price":85.11,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00264\" ** M4\" \/ 1pcs","offer_id":52336742072594,"sku":"LFLHYJJ02238x1","price":142.66,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00262\" ** M2\" \/ 1pcs","offer_id":52336742105362,"sku":"LFLHYJJ02242x1","price":32.34,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00262\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336742138130,"sku":"LFLHYJJ02229x1","price":57.64,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00262\" ** M3\" \/ 1pcs","offer_id":52336742170898,"sku":"LFLHYJJ02230x1","price":86.47,"currency_code":"USD","in_stock":true},{"title":"F1-1\u00262\" ** M4\" \/ 1pcs","offer_id":52336742203666,"sku":"LFLHYJJ02236x1","price":139.24,"currency_code":"USD","in_stock":true},{"title":"F2\" ** M2-1\u00262\" \/ 1pcs","offer_id":52336742236434,"sku":"LFLHYJJ02228x1","price":58.18,"currency_code":"USD","in_stock":true},{"title":"F2 ** M3\" \/ 1pcs","offer_id":52336742269202,"sku":"LFLHYJJ02245x1","price":84.29,"currency_code":"USD","in_stock":true},{"title":"F2\" ** M4\" \/ 1pcs","offer_id":52336742301970,"sku":"LFLHYJJ02226x1","price":138.31,"currency_code":"USD","in_stock":true},{"title":"F2-1\u00262\" ** M3\" \/ 1pcs","offer_id":52336742334738,"sku":"LFLHYJJ02227x1","price":80.38,"currency_code":"USD","in_stock":true},{"title":"F2-1\u00262\" ** M4\" \/ 1pcs","offer_id":52336742367506,"sku":"LFLHYJJ02239x1","price":139.94,"currency_code":"USD","in_stock":true},{"title":"F3\" ** M4\" \/ 1pcs","offer_id":52336742400274,"sku":"LFLHYJJ02225x1","price":155.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-02_39689078-924c-4776-b9cc-b1091506a446.jpg?v=1781158371","url":"https:\/\/homediyer.com\/de\/products\/bsp-male-to-female-reducing-bush-stainless-steel-pipe-fitting","provider":"HomeDIYer","version":"1.0","type":"link"}