{"product_id":"brass-octagonal-blanking-plug-male-female-pipe-end-cap","title":"Brass Octagonal Blanking Plug — Male \u0026 Female Pipe End Cap | 1-1\/4\" 1-1\/2\" 2\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBrass Octagonal Blanking Plug — Reliable Pipe End Cap for Plumbing \u0026amp; Hydraulic Systems\u003c\/h2\u003e\n\u003cp\u003eWhen you need to seal off an open pipe end during installation, maintenance, or system testing, a loose or ill-fitting cap can cause leaks, pressure loss, or contamination. DIYers, plumbers, and maintenance technicians working on water supply lines, compressed air systems, or hydraulic circuits need a dependable brass octagonal blanking plug that threads in securely and stays put.\u003c\/p\u003e\n\u003cp\u003eEach plug is machined from solid brass and features an octagonal head for easy wrench engagement. Available in both male thread (Type M) and female thread (Type F) configurations, with sizes spanning 1-1\/4\" (≈32mm), 1-1\/2\" (≈38mm), and 2\" (≈50mm) nominal pipe sizes. Sold individually (1 pc per order); select your type and size from the variant options above.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include capping unused ports on manifolds and valve bodies, sealing pipe ends during pressure testing of plumbing rough-ins, and blanking off hydraulic or pneumatic circuit branches — all scenarios where a secure, wrench-tightened brass pipe end cap 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\u003eCompatibility Note:\u003c\/strong\u003e These plugs generally follow BSP thread standards. If your system uses NPT threads, please verify thread form before ordering. When in doubt, contact us to confirm fit.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Brass Octagonal Blanking Plugs\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOctagonal Head Design\u003c\/strong\u003e — The multi-flat head provides solid wrench grip for controlled torque, reducing the risk of rounding off during installation or removal of the pipe end cap.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMale \u0026amp; Female Thread Options\u003c\/strong\u003e — Available in both external (Type M) and internal (Type F) thread configurations, covering the most common blanking plug installation scenarios in plumbing and hydraulic systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSolid Brass Construction\u003c\/strong\u003e — Machined from brass for inherent corrosion resistance, good machinability, and compatibility with water, air, and light oil media — a durable choice for brass pipe fittings applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eThree Nominal Sizes\u003c\/strong\u003e — Covers 1-1\/4\", 1-1\/2\", and 2\" pipe sizes, making it straightforward to find the right fit for residential plumbing, commercial HVAC, or light industrial compressed air lines.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStandard Thread Form\u003c\/strong\u003e — Threads are machined to consistent tolerances for reliable engagement with standard BSP fittings, minimizing cross-threading risk during hand-starting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🚿\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Application Range\u003c\/strong\u003e — Suitable for sealing unused ports, capping pipe ends during pressure testing, and blanking hydraulic or pneumatic circuit branches — a practical addition to any plumbing or pipe fitting toolkit.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Brass Octagonal Blanking Plug\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\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eOctagonal (multi-flat wrench drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eBSP (British Standard Pipe) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Configuration\u003c\/th\u003e\n\u003ctd\u003eMale (external) — Type M; Female (internal) — Type F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003e1-1\/4\" (≈32mm), 1-1\/2\" (≈38mm), 2\" (≈50mm) nominal pipe size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brass (unlacquered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eGenerally up to 150–200 PSI (verify against system requirements)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Sealant\u003c\/th\u003e\n\u003ctd\u003ePTFE tape or thread sealant compound (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation Tool\u003c\/th\u003e\n\u003ctd\u003eOpen-end wrench or adjustable spanner\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 Media\u003c\/th\u003e\n\u003ctd\u003eWater, compressed air, light hydraulic oil (confirm for other media)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\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\u003eSpec Confirmation:\u003c\/strong\u003e Exact thread pitch and pressure ratings vary by size. If your application is safety-critical or involves gas lines, please contact us to confirm specifications before installation.\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 blanking plug for my pipe?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the plug size to your pipe's \u003cstrong\u003enominal bore size\u003c\/strong\u003e — not the outer diameter. For example, a 1-1\/2\" pipe end cap fits a pipe with a 1-1\/2\" nominal bore (approximately 48mm OD). When in doubt, measure the internal thread diameter of your fitting and select accordingly. Available sizes: 1-1\/4\" (≈32mm), 1-1\/2\" (≈38mm), and 2\" (≈50mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the male and female thread versions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe \u003cstrong\u003emale thread plug (Type M)\u003c\/strong\u003e has external threads and screws into a female-threaded socket or fitting. The \u003cstrong\u003efemale thread plug (Type F)\u003c\/strong\u003e has internal threads and accepts a male-threaded pipe end. Choose based on the thread type of the fitting you need to seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these blanking plugs use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese plugs generally follow \u003cstrong\u003eBSP (British Standard Pipe)\u003c\/strong\u003e thread standards, which are widely used in plumbing and hydraulic systems globally. If your system uses NPT threads, please contact us to confirm compatibility before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these brass plugs be used outdoors or in wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass offers good natural corrosion resistance and is suitable for most indoor plumbing, compressed air, and light outdoor applications. For prolonged exposure to saltwater or highly corrosive environments, additional sealing (such as PTFE tape) is recommended, and a stainless steel alternative may be worth considering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating do these blanking plugs typically handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass pipe blanking plugs of this type are generally rated for working pressures up to approximately \u003cstrong\u003e150–200 PSI\u003c\/strong\u003e depending on size and installation conditions. Always verify the pressure rating against your system requirements and apply appropriate thread sealant for a leak-free seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread sealant or PTFE tape with these plugs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, in most cases applying \u003cstrong\u003ePTFE (Teflon) tape\u003c\/strong\u003e or a thread sealant compound is recommended to ensure a leak-free seal, especially in pressurized water or gas lines. This is standard practice for threaded pipe fittings and helps prevent seepage at the thread interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tool do I use to install the octagonal blanking plug?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe octagonal head is designed for use with a standard \u003cstrong\u003eopen-end wrench or adjustable spanner\u003c\/strong\u003e. Do not over-tighten — snug plus 1–2 turns with thread sealant applied is typically sufficient for a secure, leak-free seal without risking thread damage.\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\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"【A】F1-1\u00264\" \/ 1pcs","offer_id":52331557683474,"sku":"LFLHYJJ02094x1","price":22.17,"currency_code":"USD","in_stock":true},{"title":"【A】F1-1\u00262\" \/ 1pcs","offer_id":52331557716242,"sku":"LFLHYJJ02096x1","price":30.06,"currency_code":"USD","in_stock":true},{"title":"【B】F2\" \/ 1pcs","offer_id":52331557749010,"sku":"LFLHYJJ02097x1","price":49.48,"currency_code":"USD","in_stock":true},{"title":"【C】M1-1\u00264\" \/ 1pcs","offer_id":52331557781778,"sku":"LFLHYJJ02099x1","price":17.65,"currency_code":"USD","in_stock":true},{"title":"【C】M1-1\u00262\" \/ 1pcs","offer_id":52331557814546,"sku":"LFLHYJJ02095x1","price":24.34,"currency_code":"USD","in_stock":true},{"title":"【C】M2\" \/ 1pcs","offer_id":52331557847314,"sku":"LFLHYJJ02098x1","price":44.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-03_196b6b41-7959-422f-9e1c-ac66e1d0ecdf.jpg?v=1781080795","url":"https:\/\/homediyer.com\/products\/brass-octagonal-blanking-plug-male-female-pipe-end-cap","provider":"HomeDIYer","version":"1.0","type":"link"}