B&C Technologies DI-225 Industrial - Manual (Page 20)

D. Shut-off valves for each dryer should be installed in the supply, return, and drip trap return
lines. This will allow the dryer to be isolated from the supply and return mains if the dryer
needs maintenance work.
E. Install an inverted bucket steam trap and check valve at least 12 inches below steam coil as
close to the coil as possible.
F. A vacuum breaker should be installed in the piping. This will prevent the condensing steam
from causing a vacuum inside the coil and possibly damaging the coil.
G. The supply and return lines should be insulated. This will save energy and provide for the
safety of the operator and maintenance personnel.
H. Water pocket in the supply line, caused by low point, will provide wet steam to the coil
possibly causing coil damage. All horizontal runs of steam supply piping should be pitched
1/4-inch for every one (1) foot back towards the steam supply header causing any
condensate in the line to drain to the header. Install a bypass trap in any low point to
eliminate wet steam.