Our standard steam coils are built with 5/8“ tubes and standard .025” wall thickness. Available with opposite or same end connections, our steam coils are designed to withstand up to 150 psig saturated steam supply pressure.


Secondary surface (fins) are of the plate-fin design using aluminum or copper, with die-formed collars. The fin design is to be flat, waffle, or sine-wave in a staggered tube pattern to meet performance requirements.

Collars will hold fin spacing at a specified density and cover the entire tube surface. Aluminum properties are to be alloy 1100 per ASTM B209, with 0 (soft) temper; copper is to be alloy 11000 per ASTM B125-06 with soft (anneal) temper. Fins are to be free of oils and oxidation.


Coil casing material shall be of G90 galvanized steel, 16 gauge minimum. Heavier material, stainless steel, copper, or aluminum casings are to be provided as required. All tube sheet holes are to be oversized to allow for free thermal expansion and contraction of tubes during operation. Intermediate tube supports are to be provided on all coils 50” and longer in fin length. Coil casings on the top and bottom of coils are to have double-flanged construction, allowing for vertical stacking of coils.


Tubes and return bends are to be constructed from seamless UNS C12200 copper conforming to ASTM B75 and ASTM B743. Properties shall be O50 light annealed, with a maximum grain size of 0.040mm. Seamless tubes are to be mechanically expanded into plate fins to form an everlasting bond between primary and secondary surfaces.

Pressure Testing

Coils shall be tested at 550 PSIG using dry nitrogen, submerged underwater. Dual-operator verification shall determine that all coils are leak-free

Materials and Specifications

Tube O.D.
1" (SD only)
Tube Thick
Fin Thick
Fin MaterialAluminumOptional - Copper; Stainless Steel
Casing MaterialGalv. Steel 16 gaugeOptional - Galv. Steel 12, 14, 16 and 18 gauge • 304, 316 Stainless Steel 12, 14 and16 gauge •
14 gauge Aluminum
Connection MaterialCopperOptional - Steel • Red Brass
Tube MaterialCopperOptional - Stainless Steel • Cupro Nickel • Carbon Steel
Header MaterialCopperOptional - SS Tube will have SS HDR(s) • Cupro Nickel Tubes will have Cupro Nickel HDR(s) • Carbon Steel Tubes will have Carbon Steel HDR(s) • Type K copper


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
3, 2, & 1 Business Days
Call for Pricing & Availability


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.


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!


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!