{"product_id":"castair-copper-discharge-tube-fitting-11-25-ss-dtf50j11-25-ss","title":"Castair Copper Discharge Tube Fitting 11.25-SS - DTF50J11.25-SS","description":"\u003cp\u003eThe Castair DTF50J11.25-SS is a copper discharge tube fitting — a pre-formed 1\/2-inch copper tube section measuring 11.25 inches in length, used at the pump discharge connection on Castair air compressors. These fittings are the precision-bent copper tube segments that connect the pump's discharge port to the tank check valve or downstream plumbing, navigating the specific geometry of compressor mounting configurations. The straight-to-straight compression end configuration on this unit handles a specific routing requirement in the compressor assembly.\u003c\/p\u003e\n\n\u003ch2\u003eWhat These Fittings Are For\u003c\/h2\u003e\n\u003cp\u003eAir compressor pump discharge connections require copper or steel rigid tubing — not rubber hose — because pump discharge air temperatures regularly exceed 250–300°F immediately after compression. The discharge tube fitting is the curved or straight copper section that bridges between the pump outlet port and the rest of the discharge plumbing (check valve, tank, or flex connection to the distribution system).\u003c\/p\u003e\n\n\u003cp\u003eCastair offers multiple discharge tube fittings in the DTF50J series to cover different compressor configurations. The lengths (11.25\", 19.5\", 25\", 30\", 36\") reflect the different standoff distances required in various compressor frame sizes and tank configurations. When you need to replace a discharge fitting, matching the exact length and end configuration is critical — an incorrect length won't reach the ports correctly, and incorrect end fitting geometry won't seal.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e DTF50J11.25-SS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube diameter:\u003c\/strong\u003e 1\/2\" (50 in the part number designation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 11.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd type:\u003c\/strong\u003e straight-to-straight compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Pump discharge connection on Castair compressors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Specific compressor model compatibility for each length variant is not published in Castair's public catalog. Contact us with your compressor pump model and frame configuration to confirm which DTF50J length you need before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhy Copper for Discharge Tube Fittings?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat tolerance:\u003c\/strong\u003e Copper handles continuous 300°F+ air temperatures without degradation. At pump discharge, the air is at its hottest point in the system — copper is the appropriate material for this application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkability:\u003c\/strong\u003e Copper can be field-bent to minor adjustments if needed, though these pre-formed fittings should fit the intended application without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression fitting compatibility:\u003c\/strong\u003e Copper tube works with standard compression fittings and sleeves — no special tools required for installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration resistance:\u003c\/strong\u003e Properly supported copper discharge tubing handles compressor vibration better than rigid black pipe, which is why Castair uses it at the pump-to-tank connection point.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompanion Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDT12:\u003c\/strong\u003e 1\/2\" discharge tube with fittings (pre-assembled tube assembly)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDT34:\u003c\/strong\u003e 3\/4\" discharge tube with fittings (for larger pump outlets)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCA1212:\u003c\/strong\u003e Compression adaptor 1\/2\"x1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE1212:\u003c\/strong\u003e Compression elbow 1\/2\"x1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNS12:\u003c\/strong\u003e Compression nut and sleeve, 1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCT50:\u003c\/strong\u003e 1\/2\" copper tubing by the foot — if you need a custom-length run\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen to Replace a Discharge Tube Fitting\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVisible corrosion, pinhole leaks, or cracking at any point in the tube body\u003c\/li\u003e\n\u003cli\u003eLeaks at either compression end that can't be corrected by tightening\u003c\/li\u003e\n\u003cli\u003eDuring a pump rebuild — replace discharge fittings at the same time as pump valves and rings\u003c\/li\u003e\n\u003cli\u003eIf the original fitting shows heat discoloration or has been previously over-tightened\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016\u003c\/strong\u003e — we stock Castair discharge tube fittings and can help identify the correct length for your compressor\u003c\/li\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 at 866-217-0063\u003c\/strong\u003e — call us with your pump model and we'll confirm which DTF50J length you need\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e on Castair parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance\u003c\/strong\u003e — if you need a different length or the DT12 pre-assembled tube instead, we'll advise you correctly\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":53342547378389,"sku":"DTF50J11.25-SS","price":151.94,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-copper-discharge-tube-fitting-11-25-ss-dtf50j11-25-ss","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}