{"product_id":"castair-repair-kit-for-1-2x1-2-90-for-dd-pk-and-pp-units-npt-flare-fitting-2414025k","title":"Castair Repair Kit For 1\/2\"X1\/2\" 90° for DD,PK, and PP Units NPT Flare Fitting 2414025K","description":"\u003ch2\u003eCastair Repair Kit — 1\/2\" x 1\/2\" 90-Degree NPT Flare Fitting, DD\/PK\/PP Units, Part 2414025K\u003c\/h2\u003e\n\u003cp\u003eThe Castair 2414025K is the repair kit for the 1\/2\" x 1\/2\" 90-degree NPT flare fitting used on Castair DD, PK, and PP series compressor units. At $8.47, this kit gives you the seals, seats, or replacement components needed to restore a leaking or failed flare fitting connection without replacing the entire fitting assembly.\u003c\/p\u003e\n\u003cp\u003eFlare fitting connections at 90-degree elbows are common leak points on air compressors — the fitting sees both pressure stress and mechanical stress from vibration and thermal cycling. When you find a leak at one of these connections, the correct response is a proper repair with the right kit rather than wrapping threads in tape and hoping it holds. The 2414025K contains what you need for a lasting repair on the specific fitting configuration used in these Castair unit types.\u003c\/p\u003e\n\u003ch3\u003eKit Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2414025K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Type:\u003c\/strong\u003e 90-degree NPT to flare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Size:\u003c\/strong\u003e 1\/2\" x 1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Unit Types:\u003c\/strong\u003e DD (duplex), PK, and PP series Castair compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $8.47\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNPT Flare Fittings — What They Are and Why They Leak\u003c\/h3\u003e\n\u003cp\u003eA flare fitting creates a metal-to-metal seal using a conical flare at the end of a tube pressed against a matching conical seat in the fitting body. NPT (National Pipe Taper) threads are the connection between the fitting and the threaded port. The 90-degree configuration changes the flow direction at the connection point.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon failure mode — flare seat wear:\u003c\/strong\u003e Repeated assembly\/disassembly or excessive torque can damage the flare seat, preventing a complete seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon failure mode — nut\/ferrule wear:\u003c\/strong\u003e The compression nut and ferrule that create the flare seal can wear or crack over time, especially with vibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon failure mode — contamination:\u003c\/strong\u003e Debris or scale on the flare seat or mating surface prevents a complete seal even with correct torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDD, PK, and PP Unit Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis repair kit is specifically designed for the fitting configuration used in Castair DD (duplex), PK, and PP series units. The fitting dimensions and kit contents are matched to these unit types. Using the correct kit ensures the replacement components are the right material, size, and configuration for the fitting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDD units:\u003c\/strong\u003e Duplex compressor configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePK units:\u003c\/strong\u003e Castair PK series compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePP units:\u003c\/strong\u003e Castair PP series compressors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not certain whether your Castair compressor is a DD, PK, or PP unit, check the model plate on the compressor or call us with the model number — we can confirm the correct repair kit.\u003c\/p\u003e\n\u003ch3\u003eWhen Does a Shop Need This Kit?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak at a 90-degree fitting on the compressor:\u003c\/strong\u003e If you have identified a leak at a 1\/2\" 90-degree elbow fitting on a DD, PK, or PP unit, this kit contains the repair components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter a fitting is disturbed during other service:\u003c\/strong\u003e Moving a fitting connection for pump or motor service can damage the flare seat — have the repair kit on hand before you start the work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreventive stocking:\u003c\/strong\u003e At $8.47, keeping one or two of these kits on the shelf means a fitting leak does not turn into a compressor-down situation while you wait for parts to arrive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 2414025K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Size:\u003c\/strong\u003e 1\/2\" x 1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Configuration:\u003c\/strong\u003e 90-degree NPT to flare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Units:\u003c\/strong\u003e DD, PK, PP series Castair compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Price:\u003c\/strong\u003e $8.47\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Manufacturer product page data was not available at time of writing. Specifications are derived from the product name and part number. Contact us to confirm fit for your specific Castair compressor model before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe have specialized in air compressor parts and equipment since 2016. OEM Castair repair kits are part of our regular inventory. When you call us with your compressor model and the location of the leak, we can confirm whether the 2414025K is the right kit or whether a different fitting size applies to your specific unit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e Call 866-217-0063 to confirm the right repair kit for your compressor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e on all Castair parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e We will match the right kit to your specific fitting failure\u003c\/li\u003e\n\u003c\/ul\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":53342503338197,"sku":"2414025K","price":15.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/CHECK-VALVES-300x166.jpg?v=1772652471","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-repair-kit-for-1-2x1-2-90-for-dd-pk-and-pp-units-npt-flare-fitting-2414025k","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}