18
ULTRA-SORB MODEL MP INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
STEAM FROM A NON-ELECTRODE-TYPE EVAPORATIVE HUMIDIFIER
This section provides piping instructions for resistive-element electric, gas-
to-steam, and steam-to-steam evaporative humidifi ers. For electrode-type
(DriSteem XT Series) humidifi er piping, see Page 19.
TUBING
Standard connections on DriSteem evaporative humidifi ers are 1½" (38 mm)
stainless steel tubing. Two inch tubing connections are available as an option
on higher capacity evaporative units. Hose cuffs are available for connecting
to the tubing connection on the evaporative humidifi er and to the Ultra-sorb
(see Figure 18-2). DriSteem can also provide threaded connections on the
evaporative humidifi er and on the Ultra-sorb. For threading pipe connection
options, see DriSteem’s DriCalc sizing and selection software, available at
www. dristeem.com.
When non-threaded pipe is used, steam hose and clamps can be used for
connections at the humidifi er steam outlet and at the Ultra-sorb. Due to the
difference between the tubing O.D. and the steam hose I.D., multiple hose
clamps may be required.
STEAM HOSE PITCH
Support steam hose to prevent sags or low spots, and pitch at least 2"/ft (15%)
back to the humidifi er.
TUBING PITCH
• Pitch at least 2"/ft (15%) back to the humidifi er.
•
90° elbows are not recommended. Use two 45° elbows one foot apart (see
Figure 18-2).
Failure to follow the above recommendations may result in excessive back
pressure on the evaporative humidifi er. This may lead to loss of water seal
or leaking gaskets. When the distance between the Ultra-sorb and the
evaporative humidifi er exceeds 20 feet (6 m), consult the factory for special
recommendations.
• Thin wall tubing will heat up with less start up heat loss than heavy wall
pipe.
• Insulate the tubing to reduce the loss in output caused by condensation in
the tubing.
Piping
Steam hose
(See Table
16-1)
Ultra-sorb
Ultra-sorb
Additional
connections can be
provided for multiple
humidifi er connections
Insulated tubing
(See Table 17-1)
Hose
cuff and clamps
DriSteem
non-electrode-
type evaporative
humidifi er
Standard 1½" (38 mm)
tubing outlet on cover
OM-7855
DriSteem
non-electrode-
type evaporative
humidifi ers
OM-7856
Hose and
cuff clamps
45° elbows
recommended
INSTALLATION
FIGURE 18-1: STEAM HOSE
FIGURE 18-2: HOSE CUFF INSTALLATION
