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W-705 WASP Primary Fuel Filter

WASP Fuel Filters offer a new cost effective range of primary filtration equipment for marine, heating, industrial and transport applications.

The problems that can occur due to water and sediment in fuel are well known and WASP Filters offer a wide choice of options to cover most requirements. All metal bowl units meet and exceed the requirements of ISO 10088 Annex B.


Diesel and heating oil


Ideal for Marine, Industrial and Transport applications.


Up to 20,000 lit/hr (333 lit/min)


60, 100, 300 and 400 micron


View the embedded image gallery online at:
  • Up to 20000 litres per hour flow rate
  • 1/4'' to 2'' BSP connections
  • Inexpensive solution
  • Choice of separators, paper elements or long life stainless steel
  • LM6 grade aluminium filter heads with reversible stainless steel bracket & bolts
  • Powder coated aluminium filter heads for corrosion prevention & long service life
  • 60 & 100 micron stainless steel washable elements
  • Option of 300 and 400 micron elements on some units
  • How does it work?
  • 1. Separation: 
    The incoming flow of fuel oil changes velocity and direction, reducing the possibility of further reduction of any water droplets present through impact.

    2.  Coalescence:
    This takes place on and just below the flow dispersion member allowing the separated water to descend to the bottom of the filter bowl.

    3. Filtration:  
    The fuel finally passes through the stainless steel filter element. This removes all particulate above 100 micron still suspended in the fuel after the separation process.




W-7050x range Filtration (microns) Details
W-70501/006 60mic stainless steel 1” Ports, Metal bowl
W-70501/01 100mic stainless steel
W-70501/03 300mic galvanised steel
W-70502/006 60mic stainless steel 1 ¼” Ports, Metal bowl
W-70502/01 100mic stainless steel
W-70502/03 300mic galvanised steel
W-70503/006 60mic stainless steel 1 ½” Ports, Metal Bowl
W-70503/01 100mic stainless steel
W-70503/03 300mic galvanised steel
W-70504/006 60mic stainless steel 2” Ports, Metal Bowl
W-70504/01 100mic stainless steel
W-70504/03 300mic galvanised steel

For more technical information, please see the Technical Details tab.

Spares and Options for W-70501, 70502, 70503 

W-70500B W-7050x range mounting bracket
W-60500/006 Replacement 60 mic pleated stainless steel element
W-60500/01 Replacement 100 mic pleated stainless steel element
W-60500/03 Replacement 300 mic pleated galvanised steel element
W-3197 Gasket kit
W-3197V Viton gasket kit

Spares and Options for W-70504 

W-70500B W-7050x range mounting bracket
W-60504/006 Replacement 60 mic pleated stainless steel element
W-60504/01 Replacement 100 mic pleated stainless steel element
W-60504/03 Replacement 300 mic pleated galvanised steel element
W-3197 Gasket kit
W-3197V    Viton gasket kit


  •  70501/3 can be fitted with a magnetic column to remove ferrous particles.

FLOW RATE (litres / hour)
3000 - 5000
60 mic ss
1" BSP
190 x 255
3000 - 5000
100 mic ss
1" BSP
190 x 255
3000 - 5000
300 mic gs
1" BSP
190 x 255
5000 - 8000
60 mic ss
1½" BSP
190 x 255
5000 - 8000
100 mic ss
1½" BSP
190 x 255
5000 - 8000
300 mic gs
1½" BSP
190 x 255

Flow rates are approximate
ss = stainless steel  gs = galvanised steel  F = flanged connections

Aluminium filter body and cover- maximum working pressure 4 bar - maximum operating temperature 90°C 

Technical Specification

Maximum operating pressure           2bar
Max operating temp (metal bowl)    90 deg C
Compatible with diesel and heavy oil


Carefully follow the flow direction shown by an arrow on the filter. The filter can be installed in any position although it is recommended to fit it vertically with the bowl pointing downwards in order to facilitate the separation of the water traces and the deposit of the filtered impurities. 


Cleaning the filter is carried out by unscrewing the central bolt and then unscrewing the bowl. Carefully wash the filtering element with clean diesel, gas-oil or gasoline. Remount the unit and check that the seals are integral and well placed. Paper elements should be replaced as they cannot be reused (see above spares). Water can be drained by opening the bleed screw on the lid and then the water drain at the bottom of the bowl. 


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