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4. Steam Damper Air System Connections
The dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply of
compressed air. The air connection is made at the left hand side on top of the dryer.
a. Air Requirements
Compressed Air Supply
Air Pressure
Normal
80 PSI
5.51 bar
Minimum Supply
70 PSI
4.82 bar
Maximum Supply
90 PSI
6.20 bar
c. No air regulation is provided with a standard dryer. External regulation/filtration of 80 PSI (5.51 bar) must be
provided. It is suggested that a filter/regulator/gauge (F/R/G) arrangement be added to the compressed air
line just before the dryer connection. This is necessary to ensure that correct and clean air pressure is
achieved. The F/R/G is provided on dryers with the optional automatic door or the optional sprinkler circuit.
Shaded areas are stated in metric equivalents
b. Air Connection
Air connection to system---1/8” F.P.T.