RF300AR-E Strainer with Backwash Pump

From £2,845.00 GBP

The RF300AR-E strainer with backwash pump is a self-cleaning suction intake filter, attaching to the suction hose of surface mounted pumps.   They are the same as the RF300AR strainers, but with one difference.

They have a separate motor to drive their internal self-cleaning backwash, so that the cleaning mechanism is driven independently of your surface mounted pump - they have their own integral backwash pump.

This allows you to vary the output of your pump without affecting the performance of the backwash in the filter – useful if you have a variable speed drive on your pump and wish to keep the intake clear.

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The RF300AR-E strainer with backwash pump allows you to pump and screen dirty awater even with a variable speed drive

Key Features

  • Stainless steel filter mesh
  • Filter sizes from 50 microns to 3 mm
  • High reliability and easy to install and use
  • Works with most centrifugal and progressive cavity pumps
  • Continuous backwash keeps filter mesh clear
  • Ideal for variable speed pumps
  • 35 cubic metres per hour maximum flow
  • Reduced capital, installation and maintenance costs
  • All Stainless Steel construction

RF300AR-E Self-cleaning Strainer with Backwash Pump


Description

RF300AR-E Strainer with Backwash Pump

Shiny all 316 stainless steel amazing self-cleaning suction intake filter with itegral automatic backwash.

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.

RF300AR-E Strainer with Backwash Pump - Rotorflush Self-cleaning suction intake filter with its own backwash pump


Models & Specification

RF300AR-E Strainer with Backwash Pump

 

Really cool rendering of amazing self-cleaning suction intake strainer with automatic backwash from Rotorflush Filters Ltd

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

Cool rendering by Nick of RF300AR-E all stainless steel -316 grade, natch - self cleaning automatic backwash strainer.
Overall imensions of self-cleaning suction intake with backwash pump- 560 litres a minute
RF300AR-E suction intake strainer with autiomatioc bac kwash - just the diameters


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

Automatic backwash pump materials of construction
Automatic backwash pump supplying amazing self-cleaning suction intake strainer from Rotorflush Filters Ltd


RF300AR-E strainer with backwash pump – Construction

The RF300AR-E strainer with backwash pump allows you to pump and screen dirty awater even with a variable speed drive

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 £2,845.00 (GBP)
RF300AR-E woven stainless steel mesh £2,845.00 (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.

The RF300AR-E strainer with backwash pump on its side


Please note:

Delivery is by carrier.  Contact us for latest lead times.

Carriage and packing charges are extra.

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