Curtis OL 512 - Manual (Page 27)

CAP-215
14
Instruction Manual Oil-Less Compressors
3.
INTERMEDIATE AND FINAL SEPARATOR
3.1.
FUNCTIONAL DESCRIPTION OF INTERMEDIATE SEPARATOR (2-STAGE MODELS ONLY)
The intermediate separator (Fig. 9) is mounted after the two first stages of the 2-stage oil-less compressor. The
separator is designed to remove excess water which results from the cooling down after the compressing process
and thus to provide the next stage with a cleaned medium. Separation is achieved by means of a baffle (4). A
sintered metal filter (2) is provided additionally to remove dirt contamination.
3.1.1. CONDENSATE
DRAIN
The condensate has to be drained manually as soon as "max." mark is reached, or after each operation.
Therefore open knurled nut mounted on the lower part of separator housing. After draining the condensate,
firmly tighten knurled nut.
Compressors which are equipped with a condensate drain valve are drained automatically. Ensure that the
separators are drained every 15 minutes. At increased humidity, intervals for draining may be shorter.
3.1.2. INTERMEDIATE SEPARATOR MAINTENANCE
Proper operation of individual stages will rely on the intermediate filter being properly serviced.
The sintered filter element of the intermediate
separator is to be cleaned approx. every 4,000
operating hours.
- Remove condensate drain piping from filter.
Unscrew union nut and remove filter cartridge.
- Remove center screw (1), and separate
sintered filter element (2).
- To clean filter element, the best method is to
use hot soapy water and to blow dry with
compressed air.
- On reinstallation of filter elements take care to
observe correct order.
Fig. 11: Intermediate -/final separator