Coil Calc - Coil Selection Program
 

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HEATCRAFT STEAM COILS

Standard or steam distributing construction is available for high and low pressure applications. Standard steam type is the basic 5/8" or 1" tube steam coil, known as the single tube design. The steam supply and condensate return headers and connections are normally at the opposite ends of the coil. Uniform steam distribution to each of the coil core tubes is accomplished by proper header assembly design. The steam supply connection should be located in the center of the header, with a perforated plate type baffle located directly behind this connection. Properly sized orifices are located in each of the core tube entrances into the header.

Steam distributing 5/8" and 1" tubes are the "freeze resistant" coils, known as the dual-tube design. It is important to note that any steam coil can freeze when exposed to freezing temperatures without the proper drainage of the condensate! This coil design utilizes a smaller inner tube, with precisely spaced, directional, orifice type perforations. This is to help direct condensate flow to the return header. The steam supply, condensate return headers, and connections may be fabricated as a same-end or opposite end orientation. When made as same end connected, the header appears as a single large header, but is actually two headers in one. Compartmentalizing the header serves multiple functions. As well as the supply and return, this compartmentalizing has the inner steam supply header warming the condensate return, and allows same end connected single and two row coil construction. This eliminates the unwanted core tube return bends on a steam coil.

Downloads

Steam Catalog
Steam Coil Installation, Operation and Maintenance
Steam Coil Specification

Certified Drawing: Steam Distributing
Certified Drawing: Standard Steam
Certified Drawing: Steam Distributing w/Box Headers
 

HEATCRAFT STEAM COIL CONSTRUCTION

Tubing Copper, Cupronickel, Stainless Steel or Carbon Steel
Core Free Floating designed to expand and contract in the casing
Rows 1 or 2 (5/8" only)
Fin Surface Sine Wave (corrugated), New Ripple (peak and valley) or Flat (5/8" only)
Casing Galvanized Steel, Stainless Steel, Carbon Steel, Copper or Aluminum
Connections Carbon Steel, Stainless Steel, Red Brass, or Copper Sweat (MPT, FPT, Victaulic, Grooved or Welded)
Vents & Drains Standard on all coils
 
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