Sullair SD-220 - Product Information; Pressure Vessel Regulations; Airtightness Test; Overloading

INSTALLATION, START-UP & MAINTENANCE MANUAL
MODEL NO.: SD-220 TO SD-600- DDS OPTION
REV 0 – May 24,,.2001
8
SECTION 1
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 and a pre- and after-filter, and depending on
certain conditions at the outlet, provides pure, dry and oil-free compressed air or
gases.
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
Type SD-220 TO SD-600
Operating overpressure
Max. 150 PSIG
Temperature
Max.
Min.
500 °F
-20 °F
1.4.2 Airtightness test
All adsorption dryers are subjected to an airtightness test prior to shipment using
compressed air.
1.4.3 Overloading
CAUTION!
Protect the adsorption dryer from overloads!
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 correspondingly its
humidity increases,
•
The min. operating pressure is under cut,
•
The pre-filtration and separation of impurities are not sufficient, or
filter drain fails.