Sterling SGM-250A User Manual

Bags are easily removed from the top of the filter housing. Before 
removing the bag filter be sure that pressure has been relieved and 
that the filter housing has been isolated to prevent spill over. 
 

 
Loosen and unlatch the V-clamps or swing type bolts that fasten 
down the top of the filter housing. The top is hinged on one end 
and will swing open. Reach down and lift the bag handle and 
remove the filter bag. Unfold and install the new bag. Close the 
cover and tighten down the swing bolts. 
 
 

Periodically, solids that settle to the bottom of the filter housing 
will need to be purged out. The drainage port valve, which is piped 
to an open drain, will need to be opened to purge the debris from 
the reservoir. Over time, one should be able to accurately 
determine how often the valve should be opened. Do not allow the 
debris to collect beyond the capacity of the reservoir. 
 
An optional automatic purge valve is available to open based upon 
an adjustable time cycle. Periodically inspect and ensure that the 
purge line is clear to flow freely. 
 

 
The cover of the SWF full flow filter is removable if the strainer is 
clogged with debris. A pressure drop of 10 psi, after purging debris 
from the reservoir, would indicate that the strainer requires 
cleaning. Do not remove the cover under pressure. Relieve the 
pressure and isolate the filter from the system first. Lift the strainer 
element out of the filter housing and scrub it carefully with a rigid 
nylon brush and water until clean. Wash it off with clean water,