Nortec NHTC - Manual (Page 50)

10-10
Page 42
2008-10-01
5. SHORT ABSORPTION MANIFOLD (SAM-e)
A. GENERAL
(1) NORTEC’s best performing steam absorption system for use in Air Handling Units and
duct systems where short steam absorption distance is critical.
(2) The SAM-e, Figure 17, distributes clean steam, precisely controlled, uniformly into the
entire air stream, void of any condensate spray. Steam distribution takes place via
distributor tubes with integrated nozzles. The steam is kept dry as condensate is
drained through the main header.
(3) The stainless steel distribution tubes are typically mounted vertically but can also be
mounted horizontally (10° slope) for vertical airflow applications. The distribution tubes
come equipped with evenly spaced stainless steel nozzles providing optimum steam
distribution, over the entire length of the tube.
(4) The nozzles extend into the center of the distribution tube ensuring only condensate
free steam is released. (See Figure 18.) Condensate drains out of the distribution
tubes, through the header, eliminating the need for jacketed tubes. A permanent bond
between the nozzle and distribution tube is made when the nozzle is pressed into the
tube. The nozzles and tubes have the same thermal expansion characteristics
guaranteeing a permanent union. The specifically sized orifices ensure consistent
output from each nozzle.
Figure 18. Cross-Section of Distributor Pipe Figure 17. SAM-e Tubes