INSTALLATION, START-UP & MAINTENANCE MANUAL
SD-220 TO SD-600
REV 04 – 10 Oct 2003
Page 7 of 32
1.4. PRODUCT INFORMATION
The adsorption dryer is used for the purpose of drying compressed air and other gases
according to its respective design. As a "standard model" the adsorption dryer is equipped
with two desiccant vessels, a pre filter and an after filter, and depending on certain
conditions at the outlet, provides pure, dry and oil-free compressed air or gas.
1.4.1. Pressure Vessel Regulations
The pressure vessels are designed according to the standard technical requirements.
They fulfill the test of the certifying procedure and carry the “U”, “UM” ASME Symbol.
Range of application
Maximum Design Pressure 150 PSIG
Maximum Temperature
Minimum Temperature
500 °F
-20 °F
1.4.2. Leak test
Prior to shipment, all adsorption dryers are subjected to a comprehensive leak test
using compressed air.
1.4.3. Overloading
CAUTION!
Protect the adsorption dryer from overloading!
The adsorption dryer can become overloaded, if:
• The flow capacity of the medium to be dried increases,
• The temperature of the air at entry, and it’s corresponding humidity
increases,
• The minimum operating pressure decreases,
• The pre filtration and separation of impurities are not sufficient, or the
filter drain fails.