Nortec SAM-e User Manual download pdf (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

Not recommended

Oil seeps out.

Rusting.

Health hazard.

Larger pressure drop.

Plastic

-----

Not recommended

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