{"product_id":"castair-dryer-pump-75-w-receiver-dryer-dp75rd","title":"Castair Dryer Pump 75 w\/ Receiver Dryer - DP75RD","description":"\u003cp\u003eThe Castair DP75RD is a dryer installation kit for the RD59-11K and smaller refrigerated dryers, bundled with a receiver dryer for two-stage moisture removal. Unlike the DM75RD which mounts the dryer on the compressor, the DP75RD is a standalone installation — the dryer is positioned separately from the compressor (wall-mounted, floor-standing, or on a bracket) and the bypass plumbing connects the two. Adding the receiver dryer to this kit means you get bulk moisture and oil aerosol separation upstream of the refrigerated dryer, which extends dryer life and improves overall air quality.\u003c\/p\u003e\n\n\u003ch2\u003eTwo-Stage Moisture Control\u003c\/h2\u003e\n\u003cp\u003eA refrigerated dryer alone handles moisture well under normal conditions. But in high-humidity environments, on systems with heavy condensate loads, or in shops where air quality is critical (paint booths, precision spray applications), a receiver dryer upstream significantly improves performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirst stage (receiver dryer):\u003c\/strong\u003e Removes bulk liquid water and oil aerosols before the air enters the refrigerated dryer. Protects the dryer's heat exchanger from contamination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecond stage (refrigerated dryer):\u003c\/strong\u003e Cools the air to 37°F dew point, condenses remaining moisture, and drains it automatically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe result is cleaner air with less maintenance on the refrigerated dryer itself. Without a pre-filter or receiver dryer, compressor oil aerosols can coat the refrigerated dryer's heat exchanger surfaces over time, reducing heat transfer efficiency and driving up operating temperatures.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Dryer Models\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD25-6K:\u003c\/strong\u003e 25 CFM @ 37°F dew point, 3\/4\" NPT, 115V\/1ph, 3.0A, 57 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD59-11K:\u003c\/strong\u003e 59 CFM @ 37°F dew point, 3\/4\" NPT, 115V\/1ph, 6.5A, 73 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor dryers RD71-15K and larger, use the DP100 or DP100M.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included with DP75RD\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBypass plumbing assembly\u003c\/strong\u003e — 3-ball valve configuration for dryer isolation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiver dryer\/separator\u003c\/strong\u003e — bulk moisture and oil aerosol removal\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePlumbing fittings\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Exact dimensions, hardware list, and weight are not published in Castair's public specifications. Contact us to confirm components before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eDP75RD vs. DM75RD — Which Do You Need?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDM75RD:\u003c\/strong\u003e Compressor-mounted installation with receiver dryer. Dryer physically attaches to the compressor. Use when space is tight and a single footprint is preferred.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDP75RD (this unit):\u003c\/strong\u003e Standalone installation with receiver dryer. Dryer goes on the wall or floor, connected via bypass plumbing. Use when the compressor location makes mounting impractical, or when you want the dryer in a more accessible service location.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Castair Refrigerated Dryers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e37°F pressure dew point\u003c\/strong\u003e at rated conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R134a and R407c\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eStainless steel heat exchanger\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatic condensate drain\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax inlet pressure:\u003c\/strong\u003e 232 psig\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 115V, 1-phase, 60Hz, 9-foot cord\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUL listed\u003c\/strong\u003e\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 understand compressed air treatment and can help design your moisture control system\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 to discuss your installation and we'll help you choose between DP75RD and DM75RD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e on all Castair equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance\u003c\/strong\u003e — two-stage moisture removal is worth it for paint booths and precision applications; we'll tell you if it's overkill for your shop\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":53342546919637,"sku":"DP75RD","price":896.02,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-dryer-pump-75-w-receiver-dryer-dp75rd","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}