Nortec GS Series User Manual

Page 30

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27 | GS Series Installation















Figure 17: Steam Line Connection

Table 5: Steam Line Sizing

Humidifier

Steam
output

[ lb ]

MED-L copper tube

nominal steam

line size

Stainless steel tube

diameter (wall

thickness 0.065”)

Steam loss per foot

in condensation

[ lb/ft ]

Steam line

maximum

equivalent length

GS 100

100

1-1/2”

1-3/4”

0.11

90 ft

GS 200

200

3”

3”

0.16

90 ft

GS 300

300

3”

3”

0.16

180 ft

GS 400

400

4”

4”

0.22

180 ft

GS 500

500

4”

4”

0.22

220 ft

GS 600

600

4”

4”

0.22

260 ft

• Based on 3” duct static pressure, Maximum duct static pressure for GS is 12” w.c.

Table 6: Effective Lengths of Typical Steam-Line Fittings

Nominal tube

size

Standard

90°-elbow

Standard

45°-elbow

Side-outlet

tee

Gate valve*

Globe valve*

1-1/2”

3.5 ft

1.75 ft

7 ft

0.8 ft

34 ft

1- 3/4”

3.5 ft

1.75 ft

7 ft

0.8 ft

34 ft

3”

5 ft

2.5 ft

11 ft

1.1 ft

54 ft

4”

8 ft

4 ft

15 ft

1.6 ft

80 ft

*Valve in full open position.

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