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 Water Management Systems and Products 

5-3  BFS Series Bag Filters 

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. 
 

! CAUTION 

SEVERE INJURY WILL RESULT IF HOUSING COVER IS REMOVED UNDER 

PRESSURE. RELIEVE PRESSURE AND ISOLATE HOUSING BEFORE 

REMOVING COVER. 

 
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. 
 
 

5-4  SWF Series Full Flow Stainless Steel Filters 

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. 
 

! CAUTION 

SEVERE INJURY WILL RESULT IF HOUSING COVER IS REMOVED UNDER 

PRESSURE. RELIEVE PRESSURE AND ISOLATE HOUSING BEFORE 

REMOVING COVER. 

 
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, 

Summary of Contents for BFS

Page 1: ...ystems SGM 250A Sand and Gravel Filter CSM Centri Separator BFS Bag Filter SWF Full Flow Strainers Product Manual Sterling Inc 2900 S 160th Street New Berlin WI 53151 Tel 262 641 8610 Fax 262 641 8653 Part Number A0568850 Revision C Bulletin No SC7 600 4 ...

Page 2: ...ed to a continuing program of product improvement Specifications appearance and dimensions described in this manual are subject to change without notice Copyright Sterling Sterlco 2008 All rights reserved Effective 4 14 2008 Part No A0568850 Revision C Bulletin No SC7 600 3 ...

Page 3: ...S Disconnect and or lock out power before servicing or maintaining the system Use care when LOADING UNLOADING RIGGING or MOVING this equipment Operate this equipment within design specifications OPEN TAG and LOCK ALL DISCONNECTS before working on equipment You should remove the fuses and carry them with you Make sure that system equipment and components are properly GROUNDED before you switch on p...

Page 4: ...ion 2 2 In the Event of Shipping Damages 2 3 If the Shipment is Not Complete 2 4 If the Shipment is Not Correct 2 5 Returns 3 Installation 10 3 1 Installing the Sand and Gravel Filter 3 2 Installing the Centri Separator System 3 3 Installing the BFS Series Bag Filter 3 4 Installing the SWF Series Full Flow Stainless Steel Filter 4 Specifications 13 5 Operation 14 5 1 Sand and Gravel Automatic Back...

Page 5: ...ped in a by pass configuration and is supplied with an integral pump electrically operated ball valve and controls A timer can be preset at any interval to automatically purge the separator The CSM Centri Separator is available for cooling tower systems up to 400 tons and chiller systems up to 800 tons BFS bag filters use a 25 micron bag to filter suspended solids in either a by pass or full flow ...

Page 6: ...alled in a bypass line so that plugging of the filter or temporary shutdown required for back washing does not hinder process operation 1 3 Centri Separator Filter Systems Sterling Sterlco centrifugal separation systems are used on cooling tower or chilled water systems requiring large capacity heavy duty suspended solids removal The Centri Separator System CSM 150 is designed to handle up to 150 ...

Page 7: ...inless steel filters feature 304 stainless steel construction of filter housings strainer baskets and flanges Maximum working pressure is 100 psi 689 5 kPa 6 9 bars 150 psi 1 034 5 kPa 10 3 bars is available Maximum operating temperature is 110ºF 43ºC consult the factory for higher operating temperatures 80 mesh screen size is standard for the stainless steel strainer basket 40 mesh can be used fo...

Page 8: ...of the Shipper ends at the time and place of shipment The Carrier then assumes full responsibility of the shipment Notify the transportation company s local agent if you discover damage Hold the damaged goods and packing material for the examining agent s inspection Do not return any goods to Sterling Sterlco before the transportation company inspection and authorization File a claim against the T...

Page 9: ... Re inspect the container and packing material to see if you missed any smaller items during unpacking Determine that the item was not inadvertently taken from the area before you checked in the shipment Notify Sterling Sterlco immediately of the shortage 2 4 If the Shipment is Not Correct If the shipment is not what you ordered contact the parts and service department immediately at 262 641 8610 ...

Page 10: ... a fork lift truck when moving the unit to avoid damage Installing the Unit Be sure that piping to the unit has a bypass circuit The bypass circuit allows for removal of the unit for servicing without interrupting water service Always run piping full size at 1 NPT approx 38 mm Connect the entering water connection of the filter unit to the process supply and the leaving connection to the tank Use ...

Page 11: ...ion The location you select must also have an open drain to a sewer for purging and a 110 volt electrical source Use a fork lift truck when moving the unit to avoid damage Installing Piping Be sure that piping to the unit has a bypass circuit The bypass circuit allows for removal of the unit for servicing without interrupting water service Part of your Centri Separator system includes a three foot...

Page 12: ... on filter housing Solids will collect inside the bag filter preventing spill over when the bag is removed Always run piping full size Filter housing maximum operating pressure is 150 psi 3 4 Installing the SWF Series Full Flow Stainless Steel Filter Selecting an Installation Site Place the unit on a suitable and level foundation preferably a concrete floor or pad and near the pump for best operat...

Page 13: ...20 51 41 104 150 69 BFS Series Bag Filters Note Can be used for full flow or bypass Max flow No filter bags Pipe size Model c gpm lpm required supplied inches mm BFS 30 30 113 1 3 1 NPT 38 mm BFS 65 65 246 1 3 2 NPT 63 mm BFS 90 90 340 1 3 2 NPT 63 mm BFS 200 200 757 1 3 3 flanged 76 mm flanged BFS 300 300 1 135 2 6 4 flanged 102 mm flanged BFS 450 450 1 703 3 12 5 flanged 127 mm flanged c Single ...

Page 14: ...n screw Rotate the complete assembly until the red arrow is pointing to the rib on the pressure box 6 00 position The timer will now back wash for six minutes Important Make sure gears are engaged before tightening screw Y A D F O E M I T M ANUAL E M I T N O I T A R E N E G E R DAY REGENERATION For manual regeneration move lever in direction of arrow as far as it will go then release 1 Set skipper...

Page 15: ...here are three layers of filter media First starting from the bottom place 200 lbs of x round gravel Second place 300 lbs of x 1 8 round gravel and third the top final layer place 700 pounds of 20 filter sand Anode Replacement On top of the filter housing is a sacrificial anode made of magnesium Inspect and replace when it has depleted 5 2 Centri Separator System The CSM 150 and CSM 400 require a ...

Page 16: ...e 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...

Page 17: ...se models with a band clamp replace the band clamp around the strainer cover and housing latching the T bolt Then push the latch handle towards the filter housing The T bolt latch does not need adjustment when installed It is set at the factory for proper clamp compression Bolted cover models require a torque sequence as follows 12 00 to 6 00 3 00 to 9 00 11 00 to 5 00 and 2 00 to 7 00 Bolt torque...

Page 18: ... 3183 or call 262 641 8610 Emergencies after 5pm CST call 847 439 5655 We have a qualified service department ready to help Service contracts are available for most of our products www acscustomerservice com Sales Department Call 262 641 8610 Monday Friday 8am 5pm CST Our products are sold by a world wide network of independent sales representatives Contact our Sales Department for the name of the...

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