Separ SWK2000/18U Duplex

With the convenience of a change-over handle, and an unmatched flow rate per filter of 1080 litres per hour. The SWK2000/18U range has a lot to offer.


Ease of operation is the key for the SWK2000/18U range. The changeover handle allows the operator to completely isolate one half of the filter system for maintenance, whilst the other half is still in use. Add to that the option for bio-diesel compatibility, a very low Delta P and a class leading fuel flow rate for a single body filter and the sum of the parts all add up to an extremely competent filter.

With flow rates of up to 1080 litres per hour (18 litres per minute), and 22mm input and output nut and olive ports for direct pipe connection, the SWK2000/18U range is hard to match, let alone beat



  • Class leading flow rate for a single body filter
  • High flow rate 
  • Low Delta P / low flow restriction
  • Paper or Washable stainless steel filter elements
  • Easy installation
  • Simple single sided operation
  • 5 stage filtration [click here for details]
  • Option for bio-diesel and petrol applications
  • Suction side centrafugal filter


Product Range

Clear bowl
Clear bowl with alarm contacts
Clear bowl with metal heat shield (ISO10088)
Plastic (clear) bowl with alarm contacts and heat-shield (ISO10088)
Metal bowl (ISO10088)
Metal bowl with alarm contacts (ISO10088)


01810 10 micron paper element
01830 30 micron paper element
01860-S 60 micron stainless steel element (long-life)
30979 Seal and gasket kit (x2 required)


For all product options, please contact us.


Servicing and Technical Specifications


For instructions on installing the SWK2000 units, please click here.



For instruction on servicing and maintaining the SWK2000 units, please click here.


SWK2000/18U Specifications

Max Flow
1080 Lit/hr
237 Gal/Hr
Filter restriction at Max Flow 30mic element
15 mBar
0.44 in/hg
Port Size
22 mm
1 5/16-12 in 
453 mm
18 in
Element removal
3 in
Total height needed
513 mm
18 in
216 mm
9 in
625 mm
24.6 in
19 kg
42 lbs


Flow pressure chart

flow pressue 18u

Torque Settings

The following table shows the manufacturer's recommended tightening torques for the Separ SWK 2000 range

Filter Bowl Lid Port plug WIF sensor Bleed screw
SWK2000/5 6 Nm 6 Nm 10 Nm n/a 6 Nm
SWK2000/5/50 6 Nm 6 Nm 10 Nm n/a 6 Nm
SWK2000/10 8 Nm 8 Nm 10 Nm 10 Nm 6 Nm
SWK2000/18 12 Nm 12 Nm 15 Nm 10 Nm 6 Nm
SWK2000/40 13 Nm 15 Nm 15 Nm 10 Nm 6 Nm
SWK2000/130 ca 20 Nm ca 20 Nm n/a 10 Nm n/a

Over tightening bolts and fittings can cause damage, if in doubt please use a torque wrench or similar calibrated tool


For the full product specification - please click here to view the PDF datasheet


The Separ 2000 series has the following approvals:

  • Lloyds Type Approval Certificate - No. 94/20036
  • Germanischer Lloyd Type Test Certificate - No. 04/84-93
  • Bureau Veritas Type Approval Certificate - No. 1521 5842 A10 D
  • Rina DIP/13/94
  • Technical Department for Army Ship and Marine Weapons - No. WTD71-213-003/94
  • Application has also been made to the American Bureau of Shipping & U.S. Coast Guard



SWK2000/5U <5lit/min (300 lit/hr) <1.1gal/min (66 gal/hr)
SWK2000/5/50U <5lit/min (300 lit/hr)  <1.1gal/min (66 gal/hr)
SWK2000/10U <10lit/min (600 lit/hr) <2.2gal/min (132 gal/hr)
SWK2000/18U <18lit/min (1080 lit/hr) <4.0gal/min (240 gal/hr)
SWK2000/40U <40lit/min (2400 lit/hr) <9.0gal/min (528 gal/hr)
SWK2000/130U <130lit/min (7800 lit/hr) <29.0gal/min (1716 gal/hr)

Need help selecting a filter?

See our guide to help you select the most suitable filter for your needs.

Technical Support

How it works

See how the Separ filter works to separate water and particulate from fuel. 

SWK2000 flow diagram transparancy

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