{"product_id":"castair-belt-guard-aftercooler-bgac2-duplex-mounted","title":"Castair Belt Guard Aftercooler BGAC2 Duplex Mounted","description":"\u003cp\u003eThe Castair BGAC2x2M is a duplex belt guard aftercooler — two BGAC2 cores mounted together as a single assembly for twin-pump reciprocating compressor installations or applications requiring 100 CFM total aftercooling capacity. It uses the same proven 50 CFM core as the BGAC2M, doubled up in a single mounted package.\u003c\/p\u003e\n\n\u003cp\u003eDuplex compressors — two-pump units on a common base frame — produce discharge air from two separate cylinder heads. Without aftercooling on both discharge points, hot air from one or both pumps bypasses the cooling step and carries full moisture load downstream. The BGAC2x2M handles both discharge lines in a single unit, keeping the installation compact and maintaining consistent treatment across both pumps.\u003c\/p\u003e\n\n\u003cp\u003eThe BGAC2x2M is also the right choice when you need more total aftercooling capacity than a single BGAC2M provides. Two cores delivering 50 CFM each handle 100 CFM total, which covers larger single-pump compressors or combined output from multiple machines feeding a common header.\u003c\/p\u003e\n\n\u003ch3\u003eCore Performance Specifications — Per Unit and Combined\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM Rating Per Core:\u003c\/strong\u003e 50 CFM each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal CFM Capacity:\u003c\/strong\u003e 100 CFM (two cores operating in parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Inlet Air Temperature:\u003c\/strong\u003e 250°F (performance figures based on this inlet condition per core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure:\u003c\/strong\u003e 250 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature:\u003c\/strong\u003e 350°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling Performance:\u003c\/strong\u003e Each core cools air to within 15°F above ambient temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Reduction:\u003c\/strong\u003e Up to 65% reduction in water content per core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture physics:\u003c\/strong\u003e Water content in compressed air decreases approximately 50% for every 20°F temperature reduction. A 150–200°F drop through the aftercooler produces the 65% moisture reduction figure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePhysical Dimensions and Connections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAftercooler Core Size (each):\u003c\/strong\u003e 18 in L x 14-1\/4 in W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cores:\u003c\/strong\u003e 2 (duplex)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Connections:\u003c\/strong\u003e Two 1 in NPT inlets (one per core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Connections:\u003c\/strong\u003e Two 1 in NPT outlets (one per core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Duplex mounted — both cores pre-assembled to a common mounting panel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Use a Duplex Aftercooler vs. a Single-Core Unit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin-pump compressors:\u003c\/strong\u003e A duplex reciprocating compressor has two cylinder heads producing compressed air simultaneously. Each discharge point needs aftercooling. Plumbing both through a single duplex aftercooler is cleaner than mounting two separate single-core units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher total CFM demand:\u003c\/strong\u003e If your system requires more than 50 CFM of aftercooled air, the BGAC2x2M gives you 100 CFM capacity in a single mounted assembly. This is relevant for larger single-pump compressors that exceed the BGAC2''s 50 CFM rating, or for combined-output situations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace efficiency:\u003c\/strong\u003e Two cores in one mounted assembly takes less space and requires less high-temperature plumbing than two independent aftercooler units installed separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-pump compressors below 50 CFM:\u003c\/strong\u003e The BGAC2x2M is overkill for a single 15 HP single-pump machine. Use the BGAC2M for that application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow Belt Guard Aftercoolers Work\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-cooled operation:\u003c\/strong\u003e Each BGAC2 core in the duplex assembly sits in the path of the compressor flywheel fan''s airflow. The fan drives cooling air across both cores simultaneously — no separate blower required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge-point cooling:\u003c\/strong\u003e Hot compressed air exits each cylinder head and passes through its respective aftercooler core before entering the receiver or distribution system. Moisture condenses at the aftercooler, not inside tanks and lines downstream.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensate management:\u003c\/strong\u003e Each core produces condensate at its outlet. Install moisture separators at both outlets with drain valves — automatic float drains are preferred for continuous operation. Manual drains require scheduled attention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent circuits:\u003c\/strong\u003e Each core in the BGAC2x2M handles its own discharge line independently. The two air streams are not mixed within the aftercooler — they pass through separate internal passages and exit through separate outlet connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo independent plumbing runs:\u003c\/strong\u003e Each core has its own 1 in NPT inlet and outlet. You will need to plumb two separate high-temperature discharge lines from the compressor to the aftercooler inlets, and two outlet lines from the aftercooler to the receiver or manifold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan airflow positioning:\u003c\/strong\u003e The duplex assembly must be positioned so both cores receive adequate airflow from the compressor flywheel fan. Proper positioning is critical — if one core is outside the main fan airflow, it will underperform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-temperature inlet plumbing:\u003c\/strong\u003e From cylinder head to aftercooler inlet, use pipe or hose rated for 250 PSIG and 350°F. Standard rubber air hose is not appropriate for this section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensate drains:\u003c\/strong\u003e Install drains at the lowest points after each aftercooler outlet. One automatic drain per core is the right setup for continuous operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment verification:\u003c\/strong\u003e Call 866-217-0063 before ordering if you are not certain the BGAC2x2M mounting panel fits your specific compressor frame. Duplex compressor frames vary in belt guard panel size and configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e BGAC2x2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM Capacity Per Core:\u003c\/strong\u003e 50 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal CFM Capacity:\u003c\/strong\u003e 100 CFM (duplex)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Dimensions (each):\u003c\/strong\u003e 18 in L x 14-1\/4 in W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cores:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Connections:\u003c\/strong\u003e Two 1 in NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Connections:\u003c\/strong\u003e Two 1 in NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure:\u003c\/strong\u003e 250 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Temperature:\u003c\/strong\u003e 350°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Inlet Temperature:\u003c\/strong\u003e 250°F (per core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling to:\u003c\/strong\u003e Within 15°F of ambient temperature (per core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Reduction:\u003c\/strong\u003e Up to 65% per core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Duplex mounted (two cores on common mounting panel)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Configurations — Full BGAC Series Lineup\u003c\/h3\u003e\n\u003cp\u003eCast Air belt guard aftercoolers are available in four sizes plus duplex configurations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC1 \/ BGAC1M — 35 CFM:\u003c\/strong\u003e 18 in x 10-1\/2 in core, 3\/4 in NPT connections, 8 lbs. Fits 5, 7, and 10 HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC2 \/ BGAC2M \/ BGAC2K — 50 CFM:\u003c\/strong\u003e 18 in x 14-1\/4 in core, 1 in NPT connections, 12 lbs. Fits 15 HP. Available as loose core (BGAC2), mounted (BGAC2M), kit (BGAC2K).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC2x2M — 100 CFM Duplex (this unit):\u003c\/strong\u003e Two BGAC2 cores on a common mounting panel. For duplex compressors or 100 CFM total capacity requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC3 \/ BGAC3M — 75 CFM:\u003c\/strong\u003e 24 in x 20-1\/2 in core, 1 in NPT connections, 20 lbs. Fits 20+ HP compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC4 \/ BGAC4M — 100 CFM:\u003c\/strong\u003e 23 in x 26-1\/2 in core, 1 in NPT connections, 25 lbs. For larger single-pump systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor twin-pump duplex compressors, the BGAC2x2M is typically the correct choice over a single larger core — it gives you independent aftercooling for each pump discharge rather than combining flows before aftercooling.\u003c\/p\u003e\n\n\u003ch3\u003eWhen Does a Shop Need This vs. Stepping Up or Down\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBGAC2x2M is right for you if:\u003c\/strong\u003e You have a duplex (twin-pump) 15 HP reciprocating compressor with two discharge points, or if your system requires 100 CFM of aftercooled air and you want a compact dual-core assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse BGAC2M instead if:\u003c\/strong\u003e You have a single-pump 15 HP compressor. The single-core BGAC2M is correctly sized and less expensive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep up to BGAC3 or BGAC4 series if:\u003c\/strong\u003e Your compressor is a single-pump unit rated above 50 CFM. A single larger core from the BGAC3 or BGAC4 series may be more appropriate than a duplex of 50 CFM cores for a single discharge point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCall us if you are unsure:\u003c\/strong\u003e Duplex compressor configurations vary significantly. If you are not certain whether you need the BGAC2x2M or a single larger aftercooler, call 866-217-0063 and describe your compressor setup. We will point you to the right solution.\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 Compressed air equipment is our focus — compressors, aftercoolers, dryers, separators, and accessories. We do not sell compressed air as a footnote to a general industrial catalog.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping:\u003c\/strong\u003e Orders to the continental United States ship free, including larger assemblies like the BGAC2x2M.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e Call 866-217-0063. We can help you confirm the BGAC2x2M is the right configuration for your specific duplex compressor, verify connection sizing, and walk through condensate drain placement for a dual-core installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty:\u003c\/strong\u003e Cast Air factory warranty on all BGAC series aftercoolers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest configuration guidance:\u003c\/strong\u003e If the BGAC2x2M is not the right fit for your compressor setup — wrong core count, wrong size, wrong configuration — we will tell you before the order ships.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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":53342519001301,"sku":"BGAC2x2M","price":3362.56,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-belt-guard-aftercooler-bgac2-duplex-mounted","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}