{"product_id":"castair-1-4-npt-female-mini-ball-valve-bv25m","title":"Castair 1\/4\" NPT-Female Mini Ball Valve BV25M","description":"\u003cp\u003eThe Castair BV25M is a 1\/4\" NPT-Female Mini Ball Valve built for compressed air distribution systems where you need a reliable, compact shutoff. This is the valve you reach for on small-bore air lines, instrument connections, tool drops, and branch isolations where a full-size valve would be physically impractical. The 1\/4\" NPT female connections on both ports fit standard male NPT fittings directly — no adapters, no bushings, no workarounds.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" NPT Female Threads (Both Ports):\u003c\/strong\u003e Connects directly to standard male NPT fittings on air lines, tools, and pneumatic components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini Ball Valve Design:\u003c\/strong\u003e Compact body profile fits in tight panel spaces, manifolds, and branch takeoffs where standard valves won't clear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuarter-Turn Operation:\u003c\/strong\u003e Full open to full closed in 90 degrees — fast and definitive shutoff with no ambiguity about valve position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast Air Construction:\u003c\/strong\u003e Built to the pressure demands of commercial compressed air systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Drop-In Fit:\u003c\/strong\u003e Standard NPT thread pattern matches existing hardware in any shop or industrial air system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e BV25M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Size:\u003c\/strong\u003e 1\/4\" NPT Female (inlet and outlet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e Mini ball valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Quarter-turn (90°)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard:\u003c\/strong\u003e NPT (National Pipe Taper)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePressure rating and body material — contact us for complete specifications.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere This Valve Gets Used\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Tool Drops:\u003c\/strong\u003e Put one at every air tool station so a tech can isolate and disconnect tools without killing pressure to the whole shop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument and Control Lines:\u003c\/strong\u003e Small-bore pneumatic control circuits where a standard valve is physically too large\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Drain Lines:\u003c\/strong\u003e Inline shutoff on compressor tank and moisture trap drain connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistribution Manifold Ports:\u003c\/strong\u003e Control flow to each port independently on a multi-outlet manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Assemblies:\u003c\/strong\u003e Tight-clearance installations inside control enclosures and equipment cabinets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBranch Line Isolation:\u003c\/strong\u003e Dead-end a branch for maintenance or expansion without depressurizing the main header\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eComparing Ball Valve Sizes — Which One Do You Need?\u003c\/h2\u003e\n\u003cp\u003eCast Air offers ball valves in 1\/4\", 3\/8\", 1\/2\", and 3\/4\" NPT sizes. The BV25M is the right choice for low-flow applications — instrument lines, small tool drops, and drain connections. If you're running air to impact wrenches, spray guns, or high-demand tools, step up to the 3\/8\" BV38 or 1\/2\" BV50. The 3\/4\" BV75 is for main headers serving 5-10HP rotary compressors. Matching valve size to line size keeps pressure drop in check and extends valve life.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cp\u003eWe have been supplying shops, contractors, and industrial customers with compressor parts and accessories since 2016. We stock Cast Air valves, fittings, and components so you can source everything from one place. Free shipping on qualifying orders. Our team can help you identify the right valve size and configuration for your system — call us before you order if you need to confirm fit or discuss your application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342521884885,"sku":"BV25M","price":39.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/MidwestControlBallValve.jpg?v=1772652591","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-1-4-npt-female-mini-ball-valve-bv25m","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}