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Industrial Steam Distributing Coils

Industrial Steam Distributing Coils

 

 

Model DS – Distributing Steam with Same End Connections

steam distributing coils

Steam distributing coils, also known as ‘non-freeze coils’, are custom designed coils used to prevent freezing of steam condensate for coils that are used as preheaters for extreme temperatures. Most commonly, non-freeze coils are used in applications that may
see freezing air temperatures and/or with modulating steam pressure. These coils are usually recommended for entering air temperatures below 40°F. Model DS coild can be either 1-or-2-row with connections on the same end.


Steam Distribution Coil Design

These coils feature an inner tube inside the primary tube for two reasons. The inner tube distributes the steam to the far end of the primary tube where the steam returns and condensed in the annular area between the tubes, and the inner tube also acts as a heat-trace to keep the primary tube from freezing. Advanced Coil custom designs steam distributing coils with TIG welded tube side construction, and ASME ‘U’ stamp or CRN construction available upon request. Type DS coils are available as both one-row and two-row deep coils with the steam feed connection and the condensate return connection on the same end.

non freeze coils

Advanced Coil manufactures steam distributing coils in the following materials:
Other materials available upon request.


Non-Freeze Coil Material Types

Case MaterialTube MaterialFin Material
16ga. to 1/4” 304L or 316L stainless steel7/8” x 0.049” wall 304L or 316L stainless steel0.025” or 0.016” thick half-hard temper aluminum
16ga. to 7ga. galvanized steel7/8” x 0.083” wall 304L or 316L stainless steel0.025” or 0.016” thick half-hard temper copper
7/8” x 0.109” wall steel 0.010” thick 304 or 316 stainless steel
0.012” thick carbon steel

Typical Application Reference Chart

Typical Application
Tube Material
Tube Designation
Header Material
Typical Design Pressure @ Temperature*
High pressure, non-corrosive steam 0.109” wall (12 ga.) Steel S09 Welded
309 Seamless
Sch 40 Carbon Steel 250 PSIG @ 450°F
Corrosive steam or corrosive atmosphere 0.049” wall (18 ga.) 304LSS 449 Welded
549 Seamless
Sch 40 304LSS 250 PSIG @ 450°F
Corrosive steam or corrosive atmosphere 0.049” wall (18 ga.) 316LSS649 Welded
749 Seamless
Sch 40 316LSS 250 PSIG @ 450°F
High-pressure, corrosive steam or corrosive atmosphere 0.083” wall (14 ga.) 304LSS 483 Welded
583 Seamless
Sch 40 304LSS 250 PSIG @ 450°F
High-pressure, corrosive steam or corrosive atmosphere 0.083” wall (14 ga.) 316LSS 683 Welded
783 Seamless
Sch 40 316LSS 250 PSIG @ 450°F

*Higher pressures and/or temperatures are available to meet the specific project requirements


Distributing Steam Coil Applications

Advanced Coil manufactures distributing steam coils for a variety of applications including:

Distributing Steam Coil Configurations

Since both connections are on the same end these coils can be installed in three possible configurations:

  • Horizontal Air Flow with Horizontal Tubes
  • Horizontal Air Flow with Vertical Tubes
  • Vertical Air Flow with Horizontal Tubes

Product Gallery


Resources

Advanced Coil Warranty 148.1 KiBDOWNLOAD
Model DS 291.7 KiBDOWNLOAD

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