Pargreen Process Technologies - VWS-Series Backwashing/Tubular Filter Systems

Capture, clean, expel: how Ronningen-Petter systems from Eaton work
Every process is unique - that’s why we offer several backwashing/tubular systems in several configurations.

The only multi-element, single-housing filter in the backwashing/tubular family, the VWS-Series offers high-flow capability and is well-suited to code applications. Filter elements are arranged in a circular pattern within a single large housing. At the center of the system is a rotating washing arm. When an element requires cleaning, the washing arm rotates to that element. Much like the AFR-Series, when the drain valve is opened to atmosphere, a vacuum condition occurs, and the position pressure of the unit forces clean process liquid backward through the media and flushes contaminants.

VWS-Series - high flow with a single vessel
The VWS-Series is perfect for high-flow applications on water-like liquids - up to 22,000 gpm (4,997 m³/hr) – including surface water straining or injection water for drilling applications. Its unique multi-element, single-housing design makes it ideal for code applications and those requiring specialized materials and coatings. Backwashing is based on differential pressure, to minimize unnecessary element cleaning.

Unit of Measure

Items	item-5723 VWS-Series Backwashing/Tubular Filter Systems	item-5724 VWS-Series Backwashing/Tubular Filter Systems	item-5725 VWS-Series Backwashing/Tubular Filter Systems	item-5726 VWS-Series Backwashing/Tubular Filter Systems	item-5727 VWS-Series Backwashing/Tubular Filter Systems
Description	N/A Capture, clean, expel: how Ronningen-Petter systems from Eaton work Every process is unique - that’s why we offer several backwashing/tubular systems in several configurations. The only multi-element, single-housing filter in the backwashing/tubular family, the VWS-Series offers high-flow capability and is well-suited to code applications. Filter elements are arranged in a circular pattern within a single large housing. At the center of the system is a rotating washing arm. When an element requires cleaning, the washing arm rotates to that element. Much like the AFR-Series, when the drain valve is opened to atmosphere, a vacuum condition occurs, and the position pressure of the unit forces clean process liquid backward through the media and flushes contaminants. VWS-Series - high flow with a single vessel The VWS-Series is perfect for high-flow applications on water-like liquids - up to 22,000 gpm (4,997 m³/hr) – including surface water straining or injection water for drilling applications. Its unique multi-element, single-housing design makes it ideal for code applications and those requiring specialized materials and coatings. Backwashing is based on differential pressure, to minimize unnecessary element cleaning.
Strainer Model	N/A Filtres Philippe VWS-Series 5LF Internal Backwashing Unit	N/A Filtres Philippe VWS-Series 7LF Internal Backwashing Unit	N/A Filtres Philippe VWS-Series 7 Internal Backwashing Unit	N/A Filtres Philippe VWS-Series 9 Internal Backwashing Unit	N/A Filtres Philippe VWS-Series 11 Internal Backwashing Unit
Inlet/Outlet Connection¹	N/A 4 in100 mm	N/A 6 in150 mm	N/A 8 in200 mm	N/A 10 in250 mm	N/A 10 in250 mm
Flow²	N/A 353 gpm80 m³/h	N/A 794 gpm180 m³/h	N/A 1411 gpm320 m³/h	N/A 1852 gpm420 m³/h	N/A 2271 gpm515 m³/h
Filtration Surface Area	N/A 518 in²3341 cm²	N/A 1051 in²6780 cm²	N/A 1339 in²8638 cm²	N/A 1728 in²11148 cm²	N/A 2117 in²13658 cm²
Number of Filter Elements	N/A 5	N/A 7	N/A 7	N/A 9	N/A 11
Total Volumetric Capacity	N/A 11.2 gal42.4 L	N/A 42 gal159 L	N/A 45 gal170 L	N/A 45 gal170 L	N/A 71.5 gal270.6 L
Single Unit Weight³	N/A 540 lb245 kg	N/A 948 lb430 kg	N/A 1323 lb600 kg	N/A 1433 lb650 kg	N/A 1543 lb700 kg
Pressure Rating	N/A 35 to 150 psi2.5 to 10 bar
Electrical Requirement (Automated Units)	N/A 110/220 V, 50/60 Hz, Single Phase
Element Size (Diameter x Length)	N/A 1.65 x 24.4 in42 x 620 mm	N/A 2.36 x 24.4 in60 x 620 mm	N/A	N/A	N/A
Standard Element Size (Diameter x Length)	N/A	N/A	N/A 3 x 24.4 in76 x 620 mm	N/A 3 x 24.4 in76 x 620 mm	N/A
High Flow Element Size (Diameter x Length)	N/A	N/A	N/A	N/A	N/A 5 x 31.5 in128 x 800 mm
Filter Media Material	N/A Fabric: 230 - 1 micron Slotted: 1,600 - 25 microns Wire mesh: 1,650 - 2 microns
Note	N/A LF= Lower flow.	N/A LF= Lower flow.	N/A	N/A	N/A
Additional Choices of Media Material Configuration	N/A VWS-Series filter media is offered with a wide range of retentions.
Cake Formation Increases Operational Efficiency	N/A While the filtration media provides some of the filtration action, collected contaminants actually further increase efficiency. We call this phenomenon "cake formation." The collected solids (or "cake") trap additional contaminants. The key to making this principle work is timely cleaning - too soon and you lose the benefit, too late and the system flow becomes hindered. Ronningen-Petter systems come factory pre-set to backwash when the differential pressure from inlet to outlet reaches 15 psi (1 bar) - typically the optimum time to initiate backwashing, although this is adjustable.
¹ Drain pipe is 2'' for VWS 5 LF through VWS 27 and 3'' (76.2) for VWS 34 and 40. ² Flow rate for clear water at 22 psid (1.5 bar) at 250 micron. ³ Weights are approximate.