RF300AR-E Self-cleaning Strainer with Backwash Pump
Description
RF300AR-E Strainer with Backwash Pump
The Rotorflush RF300AR-E strainer with backwash pump provides suction intake protection for surface mounted pumps and other connected equipment. These are our successful, all 316 stainless steel RF300AR self-cleaning filters built with an internal self-cleaning backwash pump. The backwash pump keeps the filter mesh free from debris, even if the output of your surface mounted pump varies.
These dirty water suction intake filters have a capacity of up to 150 US GPM or 560 litres a minute, capable of filtering from 50 microns to 6 mm.
RF300AR-E filters are powered by a small submersible pump to drive their internal self-cleaning backwash, so that the cleaning mechanism is driven independently of your surface mounted pump. They can be used where the pump output is variable without compromising the filter’s backwash. The motor continuously backwashes the mesh screen, blowing away anything that might cause it to block, whether your pump is pumping a low or high volume of water.
Coarse and Fine filtration
The RF300AR-E strainer with backwash pump offers both fine and coarse self-cleaning filtration. It is available with sintered stainless-steel mesh for fine filtration (50, 100 and 315 microns). For coarse filtration and compliance with EU Eel regulations, 1, 2, or 3 mm woven stainless-steel filter meshes are available.
When these filters are fitted with 2 mm woven stainless-steel mesh, the maximum flow rate that will comply with current regulations for Eel protection – at an intake velocity of 0.1 metres a second – is 430 litres a minute. At their maximum flow rate 560 litres a minute (150 US GPM) these screens easily comply with EPA Rule 316 (b).
The twin jets of the cleaning rotor rotate at about 60 rpm in each filter, clearing the whole screen every ½ second. As the cleaning mechanism is on the filtered side of the filter mesh, debris in the water will not obstruct the mechanism, or affect the backwash pump.
For a higher flow rate, our RF400AR-E self-cleaning filters deliver up to 1,000 litres per minute, and we can custom-build larger self-cleaning filters to your specifications. For smaller capacities see our RF200 ranges of filters.
Models & Specification
RF300AR-E Strainer with Backwash Pump
| General Characteristics |
RF300AR-E Strainer with Backwash Pump |
| Water supply to cleaning rotor |
Supplied by built-in pump motor |
| Maximum pump output (m3 / hour) |
35 |
| Standard coarse screen apertures |
1 mm, 2 mm or 3 mm woven 316 stainless steel mesh
|
| Standard fine screen |
50, 100 or 315 micron sintered stainless steel top mesh
|
| Dimensions (diameter x height) (mm) |
550 x 655 |
| Weight (kg) |
24 |
| Suction pipe connection |
2½” |
| Return pipe connection |
1¼ “ |
RF300AR-E Dimensions
RF300AR-E – Pump and Motor Specification
| No. |
Component |
Material |
| 1 |
Pump body |
Stainless steel X5 CrNi 1810 (AISI 304) |
| 2 |
Impeller |
Stainless steel X5 CrNi 1810 (AISI 304) |
| 3 |
Motor body |
Stainless steel X5 CrNi 1810 (AISI 304) |
| 4 |
Power cable |
10 m H07 RN-F with plug |
| 5 |
Motor shaft |
Stainless steel X 12 CrNiS 1809 (AISI 416) |
| 6 |
Seal |
Double fixed seal in rubber NBR70 lubricated in oil chamber |
| 7 |
Outlet port |
Threaded male 1” 1/4 gas fitting |
|
MODEL
|
Motor nominal power (P2)
|
Motor absorbed power (P1)
|
VOLT
|
In (A)
|
μF
|
|
HP
|
kW
|
HP
|
kW
|
|
RF300R-E
|
0.75
|
0.55
|
1.2
|
0.9
|
220 – 240
|
4.5
|
10
|
RF300AR-E strainer with backwash pump – Construction
| Component |
Material |
| Filter cage and lid |
316 Stainless Steel |
| Central turbine |
316 Stainless Steel |
| Jets |
Food grade natural rubber |
| Bearings |
Acetal copolymer |
| Standard coarse screen |
1 mm, 2 mm or 3 mm woven 316 stainless steel mesh |
| Standard fine screen |
50, 100 or 315 micron sintered stainless steel top mesh |
Please Note: Our filters are designed for use in dirty water or liquids with a viscosity close to that of water. Our filters and filterpumps are NOT suitable for use in raw sewage or any other dirty water which contains oils or fat.
Ordering
Rotorflush RF300AR-E strainer with backwash pump – up to 560 litres per minute
| Rotorflush Self-cleaning Filter Model No |
Price £ (GBP – exc. VAT) |
| RF300AR-E sintered stainless steel mesh |
£3,130.00 (GBP) |
| RF300AR-E woven stainless steel mesh |
£3,130.00 (GBP) |
Please state filter mesh size:
RF300AR-E sintered stainless steel mesh: 50, 100 and 315 microns sintered top mesh
RF300AR-E woven stainless steel mesh: 1 mm, 2 mm or 3 mm
Standard fittings are 2½ inch BSP outlet, and 1¼ inch BSP inlet to the backwash.
Please state when ordering if NPT connections are required as we can fit adaptors.
Please note:
Delivery is by carrier. Contact us for latest lead times.
Carriage and packing charges are extra.
Can’t find what you need? Want to talk with us directly?
We’re here to help. Call us on +44(0) 1297 560229
Downloads
Below is the technical and maintenance information for the RF300AR-E Strainer with Backwash Pump
