{"product_id":"castair-256-gallon-discharge-manifold-256dm","title":"Castair 256 Gallon Discharge Manifold - 256DM","description":"\u003ch2\u003eCastair 256 Gallon Discharge Manifold — Part 256DM\u003c\/h2\u003e\n\u003cp\u003eThe Castair 256DM is the discharge manifold for Castair compressed air systems in the 256-gallon configuration. The discharge manifold is the central connection point where compressed air from the compressor pump (or pumps, in a duplex configuration) combines before entering the receiver tank or the distribution system. It provides the porting for safety relief valves, check valves, pressure gauges, and system connections in a single assembly.\u003c\/p\u003e\n\u003cp\u003eWhen a discharge manifold cracks, develops a leak at a port, or is damaged, the whole assembly typically needs replacement — manifold bodies are not generally field-repairable for pressure-rated connections. The 256DM is the OEM replacement for Castair systems designed around the 256-gallon configuration.\u003c\/p\u003e\n\u003ch3\u003eComponent Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 256DM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Discharge manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e Castair 256-gallon compressor systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Major component — tank \/ manifold assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat a Discharge Manifold Does\u003c\/h3\u003e\n\u003cp\u003eThe discharge manifold sits between the compressor pump discharge and the receiver tank (or distribution piping). It serves several functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure combining:\u003c\/strong\u003e On duplex units, combines the discharge from two pump heads into a single outlet stream\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety valve port:\u003c\/strong\u003e Provides a connection point for the pressure relief valve required by code on all compressed air systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge port:\u003c\/strong\u003e Houses the system pressure gauge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck valve location:\u003c\/strong\u003e Many manifolds integrate or mount the check valve(s) that prevent backflow from the receiver to the pump at shutdown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService connection points:\u003c\/strong\u003e Provides porting for aftercooler connections, moisture separator connections, and system isolation valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen a Discharge Manifold Needs Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrack or fracture in the manifold body:\u003c\/strong\u003e A cracked manifold is a safety issue — replace it, do not attempt to repair a pressure-rated casting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion through the manifold wall:\u003c\/strong\u003e Internal scale buildup and external corrosion can eventually perforate the manifold — replacement is the correct response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamaged or stripped port threads:\u003c\/strong\u003e If a port is stripped past repair, the manifold needs replacement to maintain pressure-rated connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem rebuild or modernization:\u003c\/strong\u003e When rebuilding a Castair system, replacing the discharge manifold ensures the central connection point is in serviceable condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eDischarge manifold replacement is a major service procedure on a compressed air system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDepressurize and lockout\/tagout the system completely before removal\u003c\/li\u003e\n\u003cli\u003eLabel or photograph all connections before disassembly\u003c\/li\u003e\n\u003cli\u003eUse appropriate thread sealant on all NPT connections (do not use PTFE tape on pressure-rated connections without confirming it is rated for compressed air service)\u003c\/li\u003e\n\u003cli\u003eTest all connections after reassembly — do not return to service without a leak check at operating pressure\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 256DM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Castair 256-gallon compressor systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Major component — discharge manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection configuration:\u003c\/strong\u003e Contact us for port sizes and layout details\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 for full dimensional and connection specifications for your specific Castair system 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 industrial air compressor equipment since 2016. A discharge manifold replacement is not a part you want to guess on — the port layout and connections must match your specific Castair system configuration. Call us with your compressor model number before ordering and we will confirm the correct manifold and walk through any installation questions.\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 fit and discuss installation\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e We will confirm this is the right manifold for your system before you order\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":53342504386773,"sku":"256DM","price":484.22,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-256-gallon-discharge-manifold-256dm","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}