BWF Series - Backwash Filters
Salient Features
- For uninterrupted flow applications
- No servicing of filter element (clean in place)
- Filter ratings from 30 µm and coarser
- Automated operation
Design Features
- Vessel design as per ASME Sec VIII Div 1 latest edition as standard
- Vessel design by licensed Finglow™ Pressure Vessel Design Software
- ASME Code stamping (U Designator) as option
- Vessel design for full vacuum condition/steam out condition as option
- All welders qualified to ASME Sec IX latest edition as standard
- Online backwashing i.e. simultaneous filtering and backwashing possible
- Rotating components free model available for low maintenance
- Profile wire filter element for robust application (high collapse pressure)
Models
- VABWF (BWF-01) – Vacuum Arm Backwash Filter
- MABWF (BWF-02) – Mechanical Arm Backwash Filter
- VDBWF (BWF-03) – Velocity Differential Backwash Filter
- EDBWF (BWF-04) – Elevation Differential Backwash Filter
Available Housing Materials of Construction*
- Carbon steels (CS)
- Low temperature carbon steels (LTCS)
- Austenitic stainless steels (SS)
- Austenitic – ferritic stainless steels (DSS)
- High alloy steels (AS)
Available Filter Element Materials of Construction*
- Stainless steel (SS304/SS316)
- Duplex stainless steel (UNS 32205/UNS 32750)
- Monel K400
Capacities
- Vessel pressure – ASME #150 & higher
- Maximum filter area per element – Up to 7 m2
- Maximum height of single element – 2500 mm
* Other materials of construction may be available. Consult factory
Standard Parts List
Part
List |
CS MoC |
LTCS MoC |
SS MoC |
DSS MoC |
Shell |
ASTM A106 Gr.B or ASTM A516 Gr.70 |
ASTM A333 Gr.6 or ASTM A516 Gr.70 |
ASTM A312 Gr.TP304 or ASTM A240 Type 304 |
ASTM A240 Type 2507 |
Nozzles |
ASTM A106 Gr.B |
ASTM A333 Gr.6 |
ASTM A312 Gr.TP304 |
ASTM A240 Type 2507 |
Flanges |
ASTM A105N |
ASTM A350 Gr.LF2 |
ASTM A182 Gr.F304 |
ASTM A182 Gr.F53 |
Heads |
ASTM A234 Gr.WPB or ASTM A516 Gr.70 |
ASTM A420 Gr.WPL6 or ASTM A516 Gr.70 |
ASTM A403 Gr.WP304 or ASTM A240 Type 304 |
ASTM A240 Type 2507 |
Filter Element |
SS304 |
SS316 |
SS304 |
UNS 32750 |
Fasteners |
ASTM A193 Gr.B7/ ASTM A194 Gr.2H |
ASTM A320 Gr.L7/ ASTM A194 Gr.7 |
ASTM A320 Gr.B8/ ASTM A194 Gr.8 |
ASTM A320 Gr.B8/ ASTM A194 Gr.8 |
Gasket |
SPW SS316 + Graphite |
SPW SS316 + Graphite |
SPW SS316 + Graphite |
Flat PTFE |
External Attach. |
Carbon Steel |
Carbon Steel |
Carbon Steel |
Carbon Steel |
Notes
- 1. The list is indicative of our standard offering. It is subject to change
- 2. Other material combinations not specified above may be possible. Consult factory