Filter
Top Products
16 American Dryer Corp. 113610-1
!
!
Steam Requirements – High Pressure
Inlet .............1” N.P.T. supply line connection
1 at top manifold
Return ......... 1” N.P.T. return line connection
1 at bottom manifold
Shaded areas are stated in metric equivalents
* The minimum operating pressure for optimum results is 100 psig (689.47
kPa).
Installation Instructions
To ensure an adequate supply of steam is provided, be sure
that the steam supply lines and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam
supply lines and steam return lines or improper steam
plumbing will result in poor performance and can cause
component failure. Clean, dry steam must be provided to
the dryer.
Important
Steam coil failure due to water hammer by wet
steam will void the warranty.
The presence of condensate in the steam supply line will
cause water hammer and subsequent heat exchanger
(steam coil) failure. The steam supply connection into the
main supply line must be made with a minimum 10-inch
(25.4 cm) riser. This will prevent any condensate from
draining towards the dryer.
Operating Steam Pressure
Maximum 125 psig*
862 kPa
Heat Input (Normal Load) 4.1 Bhp
Consumption (Approximate)
@ 125 psi (8.6 bar)
142 lb/hr
64.41 kg/hr
The steam supply line to the dryer must include a 12-inch
(30.48 cm) riser along with a drip trap and check valve. This
will prevent any condensate from entering the steam coil.
Flexible hoses or couplings must be used. The dryer vibrates
slightly when it runs and this will cause the steam coil
connections to crack if they are hard piped to the supply and
return mains.
Shutoff valves for each dryer should be installed in the supply
line, return line, and drip trap return line. This will allow the
dryer to be isolated from the supply main and the return main
if the dryer needs maintenance work.
Install an inverted bucket steam trap and check valve at least
12-inches (30.48 cm) below the steam coil as close to the
coil as possible. A trap with a minimum capacity of 300 lb
(136.07771 kg) of condensate per hour at 125 psi (8.62 bar)
is needed for each unit. (Based on 2 times the steam
consumption per hour.)
The supply line and the return line should be insulated. This
will save energy and provide for the safety of the operator and
maintenance personnel.
Water pockets in the supply line, caused by low points, will
provide wet steam to the coil possibly causing steam coil
damage. All horizontal runs of steam supply piping should
be pitched 1/4-inch (6.35 mm) for every 1 foot (0.31 meters)
back towards the steam supply header causing the
condensate in the line to drain to the header. Install a bypass
trap in any low point to eliminate wet steam.
Impor tant
Flexible hoses/couplings must be used. Coil
failure due to hard plumbing connections will
void the warranty.