Chilled water coils are tube-and-fin heat exchangers usually consisting of 4–12 rows of tubes…
Steam Distribution Coils
Also known as a non-freeze steam coil, a steam distribution coil is designed for low-temperature applications where freeze protection is a primary concern. It consists of one header, a tube-within-a-tube configuration and steam jets that transfer steam from the inner tube to the outer tube. A steam distribution coil is designed to promote even steam distribution throughout the coil, helping provide reliable heat transfer and reduce the risk of freezing in cold-air applications.
Tubes
Materials
- Carbon Steel
- Copper
- Cupro-Nickel
- Stainless Steel
Sizes
- 5/8"
- 1"
Wall Thickness
- .025": 1-25 PSIG
- .035": 25-75 PSIG
- .049": 75-125 PSIG
Fins
Materials
- Aluminum
- Carbon Steel
- Copper
- Stainless Steel
Specifications
- 5/8": 6-14 fpi
- 1": 6-12 fpi
Fin Thickness
- Aluminum
- • 0.006
- • 0.008
- • 0.010
- Copper
- • 0.006
Headers
Materials
- Carbon Steel
- Copper
- Cupro-Nickel
- Stainless Steel
Casing
Materials
- Galvanized Steel
- Stainless Steel
See Blank Coil Drawings
Free Quote
What is a Steam Distribution Coil?
A steam distribution coil is a specialized steam coil designed to provide efficient, uniform heating in air-handling and HVAC applications. Unlike a standard steam coil, it uses a steam distribution tube within the coil’s headers to distribute steam evenly throughout the coil circuit, helping minimize condensate buildup and improve heat transfer. Steam distribution coils are commonly used in applications requiring reliable heating performance, particularly where lower entering air temperatures or freeze protection are concerns.
Quote a Steam Distribution Coil
Frequently Asked Questions
Replacement Non-freeze Steam Distribution Coils
Do "non-freeze" steam distribution coils mean that they can't ever freeze?
Freezes generally do not occur. However, if the system is not maintained properly and/or installed incorrectly, the steam coil can freeze.
How can we prevent a steam distribution coil from freezing?
Check to make sure there is proper pitch of 1/8” per foot. This allows for proper condensate flow which is critical for making sure the coil does not freeze. Checking your steam trap and vacuum breakers to be certain they are operating correctly and installed properly will also help.
When should we use 1" tubes instead of 5/8" tubes in a steam distribution coil?
- 5/8” OD steam distribution coils should have a fin length of less then 72”.
- 1” OD steam distribution coils are used for fin lengths over 72". If the coil has a finned length of 120” or longer, dual supply setup is recommended.
What are the lead times for a steam distribution coil?
Standard production for our coils is around 20 working days, but varies based on industry demands. Please contact us for exact lead times on an order. Visit our Quick Ship page to see expedited options.
What's the difference between a steam distribution coil and a standard steam coil?
A standard steam coil is best suited for typical heating applications, while a steam distribution coil is specifically designed for colder entering-air conditions and applications where freeze protection is critical.
Related Products
Condenser coils built to rigorous specs for efficient heat transfer that's ideal for outdoor use…
DX evaporator coils to be used in air-side applications for cooling, heating and dehumidifying…
