Welcome to Separ UK

 swk200010transWe are the largest fuel polishing and fuel filtration supplier in Europe, supplying fuel filtration and preservation equipment to the generator, marine, building services, truck, bus, and heavy equipment markets since the 1980s.


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Please call us on 01923 276 007 or email This email address is being protected from spambots. You need JavaScript enabled to view it.

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W-707 Range

WASP W7xx fuel filter/water separator range


WASP Fuel Filters offer a new cost effective range of primary filtration equipment for Marine, 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.

Flow rates range from 1 - 20,000 liters per hour and port sizes are from 1/4'' BSP to 2'' BSP. A DN 50 flanged version is available on the 2'' ported model. All models have a maximum working pressure of 4 bar. 

These WASP strainers are fitted with a well constructed 'washable' stainless steel element that will give many years of effective service. Micron ratings available are 60, 100 and 300 with 400 micron offered on the 2'' models.

Pre-cleaning liquids by passing it through a washable strainer will assist in reducing costs down stream. The only consumable item in the WASP Liquid Strainers is a seal kit.




  • 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.


Product Range 

W-70700 range Filtration (micron) Details
W-70700/006 60mic stainless steel 2” Ports, Metal bowl
W-70700/01 100mic stainless steel
W-70700/03 300mic galvanised steel
W-70700/006F 60mic stainless steel DN.50 Pn16 flange, Metal bowl
W-70700/01F 100mic stainless steel
W-70700/03F 300mic galvanised steel

W-70700 Spares and Options

W-70700 and W-70700F Range options 
W-70700B W-70700 range mounting bracket
W-60500/006 60 mic pleated stainless steel element
W-60500/01 100 mic pleated stainless steel element
W-60500/03 300 mic pleated galvanised steel element
W-3196 Gasket kit
W-3196V Viton gasket kit


Install/ Maintenance


The flow direction is indicated by arrows and must be observed. The filters can be installed in any position, however, we recommend that filter units are mounted vertically with the cover uppermost. This will assist the separation and collection of any water and particulate into the bottom of the housing ready for drain off (water separation of diesel fuel will only take place at lower flow rates).


Due to the simple and effective construction very little maintenance is required other than draining off any impurities, and the periodic removal of the washable element for cleaning. Replace elements and seals as required, see above spares.

See product service and support page


Technical Spec

Maximum operating pressure           4bar
Max operating temp (metal bowl)    90 degC
Compatible with diesel and heavy oil


FLOW RATE (litres / hour)
8000 - 18000
60 mic ss
2" BSP
214 x 290
8000 - 18000
100 mic ss
2" BSP
214 x 290
8000 - 20000
300 mic gs
2" BSP
214 x 290
8000 - 18000
60 mic ss
DN50 / Pn16 Flange
214 x 290
8000 - 18000
100 mic ss
DN50 / Pn16 Flange
214 x 290
8000 - 20000
300 mic gs
DN50 / Pn16 Flange
214 x 290

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


  • Models 70501 & 70700 can be fitted with a 300W 230V heater (settings 35°C or 70°C)
  • Models 70107 & 70501/3 can be fitted with a magnetic column to remove ferrous particles. 

w 707 dimensions

How to Order

Call or email us to place your order. We accept ALL major credit and debit cards, bank transfer and also PayPal. 

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Expert advice

Unsure which spare parts you require? Or if a Separ filter will meet your requirements? 

Talk to our expert team. Call 01923 276 007



Delivery options

We have a wide range of shipping options available to suit your destination and budget.



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Contact Us

3 Kingley Park, Station Road, Kings Langley, Herts, WD4 8GW

Tel: +44 (0)1923 276007

Fax: +44 (0)1923 267463

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Here to Help

Product guides

Fuel Specs


Selecting a Filter