Direct Coil
Direct Coil manufacturers custom-designed round tube plate fin heat exchangers (coils) for the OEM, custom and replacement markets. Coils can be specified using their proprietary coil selection software based on their size or performance. Direct Coil offers a wide range of tube sizes, fin spacing, and coil connection orientations allow for a drop-in coil fit. Coils are 100 percent pressure tested for leaks to ensure quality.
- Mechanically expanded seamless copper tubes manufactured to ASME standards
- Available with either smooth or enhanced internal surfaces.
- Available in 5/16”, 3/8”, 1/2” and 5/8” Tube Diameters
- Plate type die-formed aluminum fins are available as either flat, corrugated, or lanced with straight or rippled edges
- 5 different fin thickness options
- Fins are fully collared and have a staggered tube pattern for enhanced heat transfer and lower air friction.
- Coil casings are available in a wide variety of thicknesses & materials (including galvanized steel, aluminum, stainless steel, and copper).
- Optional corrosion-resistant materials and protective coating help increase the service life of the coil.
- CSA and UL approved
- Water Coils
- Evaporator Coils
- Condenser Coils
- Steam Coils
- Booster Coils
Water Coils
Direct Coil Water Coils are designed for comfort conditioning and heating applications that have been extensively tested for heat transfer between air and fluid (water or water-glycol mixtures).
- Turbulators are available for applications that require additional capacity at a lower flow rate.
- Chilled Water coils can be constructed with intermediate drain pans, to avoid moisture carryover on taller coils.
Evaporator Coils
Direct Coil Evaporator Coils (aka Direct Expansion Coils) are designed to deliver maximum heat transfer efficiency under a wide range of operating conditions. A wide variety of coil circuiting is available, including Interlaced/Face split to meet performance requirements.
- Evaporator coils are counterflow circuited with optimized size suction headers and refrigerant distributors.
- Distributor tubes are equal lengths to ensure equal distribution of refrigerant into each circuit.
- Coils are manufactured with the highest quality materials and standards to ensure product durability under thermal expansion and vibration.
Condenser Coils
Direct Coil Condenser Coils are designed for the high pressure and temperature associated with refrigeration condensing.
- Used for condensing or heat reclaim applications.
- Coils are engineered to work with a large variety of refrigerants.
- Coils are manufactured with the highest quality materials and standards to ensure product durability under thermal expansion and vibration.
Steam Coils
Direct Coil Steam Coils are made with heavy walled copper tubes and headers and are available with a variety of connection locations and casing options to meet any mounting configuration.
- Suitable for a wide range of heating applications such as preheat, boosters, reheat, duct heaters, process air & gas, and many more.
- Distribution steam coils (non-freeze, tube-in-tube) are available for applications where condensate freezing is a concern.
Booster Coils
Direct Coil Booster Coils are designed to maximize capacity in applications where water flow is limited. High performance is achieved through the coil circuiting, which increases water velocity.
- Offered with 1 – 4 rows of continuous tubes.
- MPT connections are provided at the inlet and outlet tube locations.
- Slip and Drive or Standard casing options are available.
RAE Coils
Koch Applied Solutions partners with RAE Coils to offer a complete, quality line of HVAC heating and cooling coils.
From basic duct booster coils to custom coils, we can meet any specification and need at a competitive price with quick turnaround time to delivery. Request a quote to get started today.
Custom Coils Made to Specification
RAE coils are custom manufactured and engineered to perform to exact specifications and unique configurations. Options include booster, fluid, steam, evaporator, and condenser coils, as well as stainless steel, aluminum, and carbon steel tube construction industrial coils.
Replacement Coils & Retrofit Coils
In addition to meeting new construction needs, RAE coils are also suitable for replacement coils and retrofit coils. Additional RAE Coils’ advantages include premium shipping options as well as participation in the AHRI certification program, providing coils and coil performance ratings for various heating coils that are within the scope of AHRI and certified in accordance with ARI Std. 410.
Booster Coils
RAE Coils is one of the leading manufacturers of stocked booster coils, with over 61 different sizes in stock featuring standard duct flanges or slip and drive casings.
- Features
- Capacity Range
- Options
Features
- 61 sizes available from 6” by 6” to 24” by 48”
- 5/8” O.D. Smooth wall copper tube
- .020 Tube Wall Thickness
- .008 Corrugated aluminum plate fin
- 18 gauge galvanized steel case
Capacity Range
- 2,770 BTUH to 233,570 BTUH (1 row coils)
- 6,670 BTUH to 406,480 BTUH (2 row coils)
Options
- Standard 1-1/2” duct flange
- Slip and drive duct flange
Condenser Coils
RAE Condenser Coils are available with single or multiple circuits for condensing or heat reclaim applications. RAE Coils can also duplicate your existing coils without a premium.
- Copper Tube Wall Thickness
- Features
- Options
Copper Tube Wall Thickness
- 3/8” O.D. X .032”
- 5/8” O.D. X .020”
- 1/2” O.D. X .017”
Features
- Tempered aluminum, die-formed plate fins available in corrugated surface or flat surface with waffle edge & extruded fin collars
- 16-gauge G-90 galvanized sheet steel casing
- Heights up to 52-1/2” in a single fin
- Fin spacing ranges from 4 FPI to 14 FPI
- Tubes are mechanically expanded into the fins
- Tube sheets are die-formed and full collared and are full coil depth
- Connections can be exactly matched to existing coil or piping arrangement
- Leak-tested in a water tank
Options
- 5/8” O.D. X .025”, .030”, .035”, and .049” copper tube wall thicknesses
- 1/2” O.D. X .025” and .032” copper tube wall thicknesses
- 3/8” O.D. X .014”, .016”, and .020” copper tube wall thicknesses
- Copper, acrylic coated plate fins, and aluminum (up to .010 fin thickness) fin materials
- Baked epoxy and phenolic coating or cross-linked acrylic coating for corrosive applications
- Spray coatings using epoxy and phenolic based materials
- Split vertical fin coils with factory fabricated casings for special applications
- Mechanically expanded fin lengths up to 244”
- Copper, aluminum or stainless steel casings
- Carbon steel casings and high integrity/low leakage casings for high pressure boxes
- Casing flanges
- Galvanized steel, stainless steel, aluminum, and copper tube sheet materials
- Extruded copper tube sheet supported by a stainless steel casing provides a mating surface that is significantly less abrasive
- Special component packages
- Cased coils
- Variable configuration design (“flip-flop”) for right or left hand installation
Direct Expansion Coils
RAE DX Coils are designed and built to manage your most challenging needs. From comfort cooling to product storage RAE Coils meet your requirements and exceed expectations.
- Copper Tube Wall Thickness
- Features
- Options
Copper Tube Wall Thickness
- 3/8” O.D. X .014”
- 5/8” O.D. X .020”
- 1/2” O.D. X .017”
Features
- Tempered aluminum, die-formed plate fins available in corrugated surface or flat surface with waffle edge & extruded fin collars
- 16-gauge, G-90 galvanized sheet steel casing
- Depths of up to 12 rows with a single fin pack; 24 rows with a split fin design
- Fin heights up to 96″; spacing ranges from 4 FPI to 14 FPI
- Tubes are mechanically expanded into the fins
- Tube sheets are die-formed and full collared and are full coil depth
- Connections can be exactly matched to existing coil or piping arrangement
- Leak-tested in a warm water tank
- Coils are ETL Labeled
- Hairpin return bends or replaceable return bends with heavier tube wall thickness
Options
- 5/8” O.D. X .025”, .030”, .035”, and .049” copper tube wall thicknesses
- 1/2” O.D. X .025” and .032” copper tube wall thicknesses
- 3/8” O.D. X .014”, .016”, and .020” copper tube wall thicknesses
- Copper, acrylic coated plate fins, and aluminum (up to .010 fin thickness) fin materials
- Baked epoxy or phenolic coating or cross-linked acrylic coating for corrosive applications
- Spray coatings using epoxy and phenolic based materials
- Split vertical fin coils with factory fabricated casings for special applications with integral drain pans
- Mechanically expanded fin lengths up to 244”
- Copper, aluminum or stainless steel casings
- Carbon steel casings and high integrity/low leakage casings for high pressure boxes
- Casing flange options: Stacking, Inverted, Flat, Removable shipping covers
- Insulated casings with drain pans
- Galvanized steel, stainless steel, aluminum, and copper tube sheet materials
- Extruded copper tube sheet supported by a stainless steel casing provides a mating surface that is significantly less abrasive
- Industrial-duty coils utilizing stainless steel tubes; copper, acrylic coated, aluminum, steel, or stainless steel fins
- Mounted expansion valves
- Installed side port hot gas connections
- Integrally mounted electric heaters for defrost applications
- Distributors pulled downstream for reduced width AHU and Duct applications
- Lifting lugs and fin protection
- Cased coils
- Variable configuration design (“flip-flop”) for right or left hand installation
- Bare tube designs available for use in Hydracooler applications
Fluid Coils
RAE fluid coils are designed and built to manage your most challenging needs. RAE offers chilled water and glycol coils to meet almost any comfort or process cooling application.
- Copper Tube Wall Thickness
- Features
- Options
Copper Tube Wall Thickness
- 3/8” O.D. X .032”
- 5/8” O.D. X .020”
- 1/2” O.D. X .017”
Features
- Tempered aluminum, die-formed plate fins available in corrugated surface or flat surface with waffle edge & extruded fin collars
- 16-gauge, G-90 galvanized sheet steel casing
- Depths of up to 12 rows with a single fin pack
- Depths of up to 24 rows with a split fin design
- Heights up to 52-1/2” in a single fin
- Fin spacing ranges from 4 FPI to 14 FPI
- Tubes are mechanically expanded into the fins
- Tube sheets are die-formed and full collared and are full coil depth
- Connections can be exactly matched to existing coil or piping arrangement
- Leak-tested in a water tank
Options
- 5/8” O.D. X .025”, .030”, .035” and .049” copper tube wall thicknesses
- 1/2” O.D. X .025” and .032” copper tube wall thicknesses
- 3/8” O.D. X .014”, .016” and .020” copper tube wall thicknesses
- Copper, acrylic coated plate fins and aluminum (up to .010 fin thickness) fin materials
- Baked epoxy & phenolic coating or cross-linked acrylic coating for corrosive applications
- Spray coatings using epoxy and phenolic based materials
- Split vertical fin coils with factory fabricated casings for special applications
- Mechanically expanded fin lengths up to 244”
- Copper, aluminum or stainless steel casings
- Carbon steel casings and high integrity/low leakage casings for high pressure boxes
- Casing flanges
- Insulated casings with drain pans
- Galvanized steel, stainless steel, aluminum and copper tube sheet materials
- ODS and MPT connections
- ANSI flanges
- Grooved connections
- Extruded copper tube sheet supported by a stainless steel casing provides a mating surface that is significantly less abrasive
- Industrial-duty coils with steel, aluminum or stainless steel tubes
- Industrial-duty coils using copper, acrylic coated, aluminum, steel or stainless steel fins
- Mounted expansion valves
- Installed side port hot gas connections
- Integrally mounted electric heaters for defrost applications
- Cased coils
- Variable configuration design (“flip-flop”) for right or left hand installation
Industrial Coils
RAE Coils designs and manufactures a wide variety of heavy-duty coils to withstand the rigors of industrial applications. RAE Coils provides high quality Industrial Coils designed for easy maintenance, low operating costs, and longevity.
RAE meets your requirements with capabilities to build fluid coils for water, glycol, oil, and other liquids as well as refrigerant coils and steam coils for high pressures, we can easily meet all of your Industrial Coil requirements.
- Features
- Options
Features
- Standard steam
- Steam distributing
- Direct expansion
- Water or glycol
- Ammonia
- Other fluids
Options
- 5/8” O.D. steel tubes with .049” and .065” wall thicknesses
- 5/8” O.D. stainless steel tubes with .035” and .065” wall thicknesses
- 7/8” O.D. steel tubes with .049” and .109” wall thicknesses
- 7/8” O.D. aluminum tubes with .058” wall thickness
- 7/8” O.D. stainless steel tubes with .035”, .049”, and .083” wall thicknesses
- Steel fin thicknesses of .010” and .012”
- Aluminum fin thicknesses of .008”, .010”, and .016”
- 304 and 316 stainless steel fin thicknesses of .008”
- Acrylic coated fin thicknesses of .006”
- Copper fin thicknesses of .008” and .010”
- Galvanized steel casings are 10, 12, 14, and 16-gauge
- Aluminum casings are 12 and 11 gauge
- Stainless Steel casings are 10, 12, 14, and 16-gauge
- Copper casings are 16 gauge or 1/8”
- ANSI flanges
- Threaded, grooved, and welded connections
- Hot dipped galvanized coils
- Special component packages
- Cased coils
- Variable configuration design (“flip-flop”) for right or left hand installation
Insulated Case Coils
RAE insulated case coils are ready-to-use coils that provide immediate benefits by eliminating on-site assembly. Time on the job is reduced for significant cost savings. These insulated case coils are chilled water, hot water or evaporator coils that are completely enclosed in an insulated coil housing. This type of application is typically used for additional cooling within duct work or air handling units. RAE Coils standard design provides a blow-through or draw-through configuration.
- Features
- Options
Features
- 16-gauge galvanized steel exterior
- 18-gauge solid galvanized steel interior lining
- 2” fiberglass insulation encapsulated by panelized construction so no insulation is exposed to the airstream
- Mechanically fastened access panel on header end
- 18-gauge 304 stainless steel drain pan, double pitched to single low point in accordance with IAQ standards
- 1” MPT 304 stainless steel drain coupling in drain pan
- 1-1/2” duct flanges on air entering and exiting sides of housing
- Connection extend 4” beyond case exterior
- 1/4″ FPT brass vent and drain turned downstream (accessible by removing access panel or through downstream case opening)
- Flexible grommets on coil penetrations that extend beyond case exterior
- 10-gauge galvanized steel hanging brackets
- Integral base as an alternative to hanging
Options
- Painted galvanized exterior
- 304 stainless steel interior
- 304 stainless steel exterior (unpainted)
- Dual coils mounted in series in a common case
- 1” MPT 304 stainless steel overflow drain coupling
- Filter rack
- 16-gauge break-formed slide racks designed for nominal 2” deep filter media with side access through removable panel located on the connection side of the case coil
- 3/8” MPT brass vent and drain extended 4” beyond case exterior
- 1”, 3”, and 4” case coil wall thicknesses
- Special component packages
- Variable configuration design (“flip-flop”) for right or left hand installation
Steam Coils
Steam coils play a major part in heating processes, from industrial applications such as paper or process plants, to small basement boilers. RAE Coils has the capability to build a 5/8” standard steam coil or a 1” steam distributing coil to meet almost every application.
- Features
- Options
Features
- 1” O.D. X .035” copper tube wall thickness
- 5/8” O.D. X .020” copper tube wall thickness
- Tempered aluminum, die-formed plate fins available in a corrugated surface or a flat surface with a waffle edge and extruded fin collars
- 16-gauge, G-90 galvanized sheet steel casing
- Heights up to 48” in a single supply connection
- Fin spacing ranges from 4 FPI to 14 FPI
- Tubes are mechanically expanded into the fins
- Tube sheets are die-formed and full collared and are full coil depth
- Connections can be exactly matched to existing coil or piping arrangement
- Leak-tested in a water tank
Options
- 1” O.D. X .049” copper tube wall thicknesses
- 5/8” O.D. X .025”, .030”, .035”, and .049” copper tube wall thicknesses
- Copper, acrylic coated plate fins, and aluminum (up to .010 fin thickness) fin materials
- Baked phenolic coating or cross-linked acrylic coating for corrosive applications
- Split vertical fin coils with factory fabricated casings for special applications
- Copper, aluminum or stainless steel casings
- Carbon steel casings and high integrity/low leakage casings for high pressure boxes
- Casing flanges
- Galvanized steel, stainless steel, aluminum, and copper tube sheet materials
- FPT and MPT connections
- ANSI flanges
- Extruded copper tube sheet supported by a stainless steel casing provides a mating surface that is significantly less abrasive
- Special component packages
- Cased coils