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5.5 Steam line and condensate
hose layout
Because of the high requirements on hose
material under the operating conditions
given, it is recommended to use genuine
HygroMatik hoses only.
5.5.1 Guide lines for steam line
design
•
Steam hose nominal diameter must not
be smaller than the steam outlet of the
HygroMatik steam humidifier (do not
restrict the cross-section, otherwise
back pressure will increase)
•
Steam hoses must be laid without sags
and kinks and with a continuous slope
of 5-10% (otherwise sags may result).
•
Steam hoses must be supported every
500 mm (20 inches) by clamp brackets
•
Steam hoses should be kept as short
as possible. Implement lengths be-
yond 5 m (16 ft.) as insulated fixed
piping to keep energy loss and conden-
sate generation to a minimum. Beyond
10 m (32 ft.) insulated installation is a
must. Fixed piping is generally recom-
mended for straight steam line seg-
ments
•
When 2 steam manifolds are in use
(other than with a standard implemen-
tation), place steam Y piece as close as
possible to the steam manifolds. Such,
for the main part of the piping just one
steam hose is required and condensate
loss is minimized
•
Allow easy access to the steam pipe/
steam hose installation
•
Pressure conditions within the duct are
influenced by device steam output,
steam line layout and the duct compo-
sition itself. In some rare situations it
may become necessary to optimize
steam line layout for achieving the
results intended
•
Respect minimum bending radii:
DN 25 Steam hose: Rmin = 200 mm/8“
DN 40 Steam hose: Rmin = 400 mm/16“
5.5.2 Condensate hose layout
The condensate hose may be run from the
steam manifold back to the steam cylinder,
as depicted in the schematic drawing below
with concern to installation type 1. Alterna-
tively, the condensate hose may be fed
directly in a wastewater pipe or a drain (s.
installation type 2).
Should condensate return into the steam cyl-
inder be intended, the connection stub on the
cylinder upper part must be drilled out first
with a ANSI drill size „O“ drill. To do so, the
steam cylinder must be removed from the
housing (s. maintenance chapter, section
„Steam cylinder removal and reinstallation“).
3OHDVHQRWH
3OHDVHQRWH
with an 8 mm (ANSI drill size „O“) drill,
Drill out condensate hose connection stub
Steam cylinder top view
if required
