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DUOLINE DUPLEX BAG FILTER HOUSINGS

DOULINE DUPLEX BAG FILTER HOUSING

DUOLINE duplex bag filter housings are for applications where the process flow cannot be interrupted for filter bag changing.  Flow is diverted using ball or butterfly valves individually or through a common linkage; it is also possible to have "push button" automation using valve actuators.

 

The DUOLINE duplex bag filters are based upon the TOPLINE, SIDELINE and FLOWLINE bag filter housing designs.  To learn more about which style housing is most appropriate for your application read our article comparing each type: "How to select a bag filter housing".

 

To Link or Not to Link?

To ensure continuous flow the diverting valves must be operated in a specific order or all operated simultaneously using a common linkage, thus linking valves to a  common operator ensures diversion occurs correctly.  The linkage we provide is limited to butterfly valves and there are applications which benefit from ball valves.  Examples include extreme temperatures, pressures and high particulate loads.  We wrote an article "Comparing Ball Valves to Butterfly Valves" which delves into this subject in detail.  Since most bag filter applications involve water-like fluids with pressures ≤ 285 PSIG at temperatures between -20ºF to 100ºF with ≤ 200 PPM particle concentration, butterfly valves are sufficient.  It is possible to automate actuation of the diverting valves simultaneously, to accomplish safe diversion and thus use either a ball or butterfly valve based upon the requirements of the application. 

 

If your filtration requirement falls within 1 to 100 microns (nominal) consider the  HAYFLOW upgrade option, as it may reduce the frequency of filter bag changes.  Another consideration for continuous flow applications would be our automated filter systems, eliminating filter bag change-outs altogether.

 

The following tables provide part numbers for each standard duplex bag filter configuration we offer and we can certainly accommodate requests for special valves, actuators or even supply them "valueless"  if you want to handle that aspect yourself. 

 

DOULINE Duplex Bag Filter Catalog Pages

 

Outline Drawings

DOULINE TOPLINE Style

DOULINE SIDELINE Style

DOULINE FLOWLINE Style

 

DOULINE DUPLEX Bag Filters
linked with cast iron butterfly valves having SS discs and Buna-N seal
Carbon Steel bodies and ductile iron discs 316SS bodies and discs
F3AVTB0322 F3AVTB0222
Duplexed TOPLINE bag filters
2" 150# flanged connections
  F3AVSB00222
Duplexed SIDELINE bag filters
2" 150# flanged connections
  F3AVSB00322
Duplexed SIDELINE bag filters
3" 150# flanged connections
F3AVFB00442 F3AVFB00422
Duplexed FLOWLINE bag filters
2" 150# flanged connections
F3AVFB00443 F3AVFB01073
Duplexed FLOWLINE bag filters
3" 150# flanged connections

 

DOULINE DUPLEX Bag Filters
cast iron butterfly valves having SS discs and Buna-N seal
Carbon Steel bodies with ductile iron discs 316SS body and discs
F3AVTB0332 F3AVTB0200
Duplexed TOPLINE bag filters
2" 150# flanged connections
  F3AVSB1026
Duplexed SIDELINE bag filters
2" 150# flanged connections
  F3AVSB1019
Duplexed SIDELINE bag filters
3" 150# flanged connections
F3AVFB00450 F3AVFB00430
Duplexed FLOWLINE bag filters
2" 150# flanged connections
F3AVFB01066 F3AVFB00431
Duplexed FLOWLINE bag filters
3" 150# flanged connections

 

DOULINE DUPLEX Bag Filters
SS ball valves with PTFE seal
Carbon Steel bodies with ductile iron discs 316SS body and discs
F3AVTB0311 F3AVTB0310
Duplexed TOPLINE bag filters
2" 150# flanged connections
  F3AVSB00310
Duplexed SIDELINE bag filters
2" 150# flanged connections
F3AVFB00311 F3AVFB00310
Duplexed FLOWLINE bag filters
2" 150# flanged connections

 

If you have an existing DUOLINE duplex bag filter housing and require spare parts, refer to the navigation menu for the applicable TOPLINE, SIDELINE and FLOWLINE bag filter housing spare parts.

 

If you are not sure which type of filter housing would be most appropriate for your application, please fill out our Filter Housing Inquiry Form and we'll reply within 1-2 business days.