Nortec SAM-e - Manual (Page 42)

39 | SAM-e Installation
Effective Length of Typical Steam-Line Fittings
Table 5: Effective length of Typical Steam-Line Fittings
Nominal tube
size
Standard
90°-elbow
Standard
45°-elbow
Side-outlet
tee
Gate valve* Globe valve*
3/4” 2 ft 1 ft 4 ft 0.4 ft 18 ft
7/8” 2 ft 1 ft 4 ft 0.4 ft 18 ft
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.
Material for Steam Lines
Table 6: Effective length of Typical Steam-Line Fittings
Material Type Note
Copper MED-L Tube Recommended.
Stainless steel Tube wall thickness 0.065”
Recommended.
Required for RO/DI water.
Flex-hose
High-temperature rubber
hose
Nortec high-temperature flex-hose recommended only.
Nortec flex-hose to be checked every 5 years.
Other brands of steam hose may:
- Carry odors
- Kink or deform
- Create back-pressure and affect humidifier
performance
Black pipe
Schedule 40
Schedule 40
Not recommended
Oil seeps out.
Rusting.
Health hazard.
Larger pressure drop.
Plastic ----- Not recommended