DriSteem XT-10 - Interconnecting Piping Requirements

DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 21
Figure 21-1:
Steam outlet connections
Dispersion: Interconnecting piping
requirements
Connecting humidifier to dispersion assembly with vapor hose
• Always support vapor hose to prevent sags or low spots.
• See the table on Page 26 for interconnecting tubing and pipe pitch
requirements for single tube and multiple tube applications. See
the table on Page 30 for interconnecting tubing and pipe pitch
requirements for Rapid-sorb applications.
• See the maximum steam carrying capacity table on the next page.
• Use DRI-STEEM vapor hose. Other manufacturers of vapor hose
may use unacceptable release agents or material mixes that can
affect humidifier system performance adversely. Using hose from
alternative manufacturers increases the possibility of foaming
in the steam cylinder. Foaming can cause water level control
inaccuracies and reduced steam production.
• Do not use vapor hose in outdoor applications.
• Do not insulate vapor hose. Insulation causes accelerated heat
aging, causing the vapor hose to become hard and susceptible to
failure due to cracks.
• The steam outlet on the humidifier is sized to the output of the
humidifier. DO NOT use hose with an inside diameter (ID)
smaller than the steam outlet.
• If the humidifier must be located above the dispersion assembly,
use the recommend installation as shown on Page 24.
• For Single Tube applications, see the hose kit sizing chart on
Page 25.
•
To avoid cracking the steam cylinder outlet, use the bolt hose
clamp when attaching white braided hose to the steam cylinder
(see Figure 21-1). Use the worm-drive hose clamp for clamping
white braided hose to the stainless steel adapter.
Connecting humidifier to dispersion assembly
with tubing or pipe
• See the table on Page 26 for interconnecting tubing and pipe pitch
requirements for single tube and multiple tube applications. See
the table on Page 30 for interconnecting tubing and pipe pitch
requirements for Rapid-sorb applications.
• The steam outlet on the humidifier is sized to the output of the
humidifier. DO NOT use interconnecting tubing or pipe with
an inside diameter (ID) smaller than 1½" (DN40). REDUCING
THE INSIDE DIAMETER OF THE INTERCONNECTING
PIPING WILL RESULT IN THE INTERNAL HUMIDIFIER
SYSTEM PRESSURE EXCEEDING THE PARAMETERS FOR
ACCEPTABLE PERFORMANCE.
• Hose cuff kits are available from DRI-STEEM to connect tubing
or pipe to the stainless steel adapter and the dispersion assembly.
• 90° elbows are not recommended; use two 45° elbows, 1' (0.3 m)
apart.
• Thin wall tubing heats up faster and causes less start-up loss than
heavy wall pipe.
More on the next page ▶
Notes:
* A stainless steel adapter, white braided hose, and
two hose clamps ship with each humidifier using
duct dispersion. Hose clamps shipped, by model:
– XT-10 and XT-20 (except XT-20 208/240/1-Ph):
¾" worm-drive clamp and D29 bolt clamp
– XT-20 208/240/1-Ph , XT-30, XT-50, and XT-75:
1¼" worm-drive clamp and D43 bolt clamp
See the replacement parts section of this manual for
part numbers.
** Hose cuffs and hose clamps can be ordered from
DRI-STEEM. One cuff and two clamps connect tubing
or pipe to the stainless steel adapter shown above,
and one cuff and two clamps connect tubing or pipe
to the dispersion assembly (not shown). Use 1.5"
× 6" cuffs (Part No. 305390-006) with 1.5" clamps
(Part No. 700560-150).
Hose clamp
on vapor hose
(supplied with
hose kit)
Stainless steel
adapter*
White braided hose*
Steam
cylinder
OM-7377
Bolt hose
clamp*
Worm-drive
hose clamp*
Stainless steel
adapter*
White braided
hose*
Worm-drive
hose clamp*
Bolt hose
clamp*
Steam
cylinder
Hose cuff **
Hose clamp**
Tubing or pipe;
must ground
OM-7378
Hose clamp**
Vapor hose connection
Tubing or pipe connection
XT_IOM_Jan_2008.pdf 23 11/19/2009 10:13:37 AM