Secondary surface (fins) shall be of the plate-fin design using aluminum or copper, with die-formed collars. Fin design to be flat, waffle, or sine-wave in a staggered tube pattern to meet performance requirements. Collars will hold fin spacing at specified density, and cover the entire tube surface. Fins are to be free of oils and oxidation.
Also known as: DX Coils, DX Expansion Cooling Coils, DX Cooling Coils, Coil Evaporators, Refrigeration Evaporators and Refrigerant Evaporators. Our DX Evaporator Coils are built with either 3/8“, 5/8” or 1” O.D. tubes and multiple wall thickness options. Shaped Evaporator Coils available for all types of refrigerant cooling applications. Various circuiting capabilities as well as face split and intertwined designs available.
Casing
Coil casing material shall be galvanized steel at a 16 gauge minimum. Heavier material, stainless steel, copper or aluminum casings are available as required.
Intermediate supports are required every 50” of finned length and shall be bolted to top and bottom casing channels. Coil casings on top and bottom of coils are to have double-flange construction, allowing for vertical stacking of coils.
Tubes
Seamless copper tubes shall be mechanically expanded into plate aluminum or copper fins to form an everlasting bond between primary and secondary surfaces. Tubes are to be mechanically expanded into fins (secondary surface) for maximum heat transfer.
Pressure Testing
Coils shall be tested at 550 psig using dry nitrogen, submerged under water. Dual-operator verification shall determine that all coils are leak-free.
Coils shall be certified to withstand 750 psig working pressures.
Connections
Connection is to be sweat type (SWT), MPT or FPT grooved or flanged as required.
Headers
Headers (manifolds), if required, shall be constructed of a minimum .060” wall seamless copper. Die-formed copper end caps are brazed on the inside of the headers, and rounded so as to prevent excessive pressure drop (Unless spun-closed — for sizes up to 1-3/8”). All coils shall be provided with 1/4” vents and drains.
Materials and Specifications
Tube O.D.
3/8"
1/2"
5/8"
Tube Thick
.014
.016
.020
Fin Thick
.005
.006
.006
Optional Tube
.016 | .022
.025
.025 | .035 | .049
Optional Fin
.006 | .0075
.0075 | .010
.0075 | .010
| Fin Material | Aluminum | Optional -Copper; Stainless Steel |
| Casing Material | Galv. Steel 16 gauge | Optional - Galv. Steel 12, 14, 16 and 18 gauge • 304, 316 Stainless Steel 12, 14, and 16 gauge • 14 Gauge aluminum |
| Tube Material | Copper | N/A |
| Connection Material | Copper | N/A |
| Header Material | Copper | Optional - Type K Copper |
Shipping
The equipment we build is specially made to meet your exact engineering requirements, but we also understand time critical projects require quick turn around. Our expedited production program allows us to offer coil shipments in as little as 10, 5, 3 and 1 working days guaranteed.
20 Business Days
Standard Shipment
10 Business Days
Added Premium
5 Business Days
Added Premium
IOM
We strive to provide the most stress-free and easy to complete process in the industry. With every purchase, we provide a product-specific Installation, Operation, and Maintenance manual to help guide you through a lifetime of easy operation. Should you have any questions about your product you can contact us for further assistance.
SPECS
Want to know more? Here is the full product spec sheet that lays out product-specific details that can make a difference when it comes to your system performance and longevity. If you're not seeing exactly what you need, you can reach out to one of our highly trained sales engineers and we will take it from there!
DRAWING
Not sure exactly what you need or how to ask for it? Fill out this easy to use step by step guide, that when completed will provide all the necessary information to our highly trained sales engineers. Not sure how to find the information needed in the drawing? Check out our how-to videos on coil measuring and drawing completion!