SKG3 Gas Fired Humidifier
Installation Instructions and User Manual
13
Stage 2 – Steam Distribution Installation
Fundamental
Design Concepts
1.
Maximum steam velocity in a pipe must not exceed 40 ft/s (12m/s). Velocities
above this will generate noise.
2.
Minimum steam pipe gradient must be 7
˚ i.e. 5’’ (125mm) rise in 40’’ (1m) run.
3.
The lowest point of any steam hose or rigid pipe must be the humidifier.
Otherwise, a steam trap (S trap) must be installed at the lowest point of the
steam line. This steam trap must be installed higher than the static pressure of
the system by at least
2’’ (50mm).
4.
Total length of the flexible steam hose must not exceed 16 feet (5 m) or
insulated rigid piping must not exceed 50 feet (15 m).
5.
Whenever possible, use rigid copper piping. Flexible steam hoses can be used
for short runs or for interconnecting between rigid pipe runs. Ensure that there is
no kink in the flexible hose.
When using a rigid copper pipe, insulation must be used to diminish
condensation build up.
Min. 7°
Correct Installation
Single module
humidifier with
Multisteam.
Static pressure
+ 2'’ (50)
Steam distribution correct installation 1- Fig. 15a
(dimensions in bracket are in mm)
Min. 7°
Correct Installation
Single module humidifier with 2 S.A.M.E2 manifolds
Static pressure
+ 2'’ (50)
Steam distribution correct installation 2 - Fig. 15b
(dimensions in bracket are in mm)
Incorrect installation - Fig. 16
6.
Connection pipe sizes between SKG3 and steam distributor in the duct must be:
3’’ (76mm) up to 264lb/h (120kg/h)
4 ¼’’ (108mm) up to 528lb/h (240kg/h)
5 ¼’’ (133mm) up to 560lb/h (255kg/h)
7.
All humidifiers below 220lb/h (100kg/h) capacity must use standard Neptronic®
S.A.M.E2 steam distribution pipes. Multi-Steam can be offered if shorter
absorption distances are required.
8.
All humidifiers above 220lb/h (100kg/h) capacity must use the Multi-Steam.
9.
All humidifiers above 528lb/h (240kg/h) must use 2 Multi-Steam units per air
handling unit (AHU) or air duct, with an equal duty split to each Multi-Steam.
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