Separ SWK2000/40U Duplex


The changeover handle system of the SWK2000/40U range means an operator can easily isolate one half of the filter for maintenance. With the handle pointing to the right, that filter is in use - meaning the left hand side can be opened up, cleaned, and have its element changed without having to lock off and stop the fuel flow to the engine.

The range is capable of handling flow rates up to 2400 litres per hour (40 litres per minute). The input and output ports both accept 35mm pipe via a nut and olive connection



  • Changeover handle for ease of use
  • Minimal fuel flow restriction
  • Easy to change fuel filter element
  • Easy installation
  • Simple changeover operation
  • 5 stage filtration [click here for details]
  • Options for bio-diesel and petrol applications
  • Suction side centrifugal filter


Product Range

SWK2000/40UM Metal bowl (ISO10088)

Metal bowl with alarm contacts (ISO10088)


04010 10 micron paper element
04030 30 micron paper element
04060-S 60 micron stainless steel element (long-life)
30980 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.


SWK2000/40U Specifications 

Item Metric Imperial
Max Flow 2400 Lit/hr 528 Gal/hr
Filter restriction at Max Flow 30mic element 32 mBar 0.95 in/hg
Port Size 35 mm 1 7/8-12 in
Height 530 mm 20.87 in
Element removal 60 mm 3 in
Total height needed 559 mm 22 in
Depth 280 mm 11 in
Width 795 mm 31.3 in
Weight 37 kg 81 lbs

Flow pressure chart

flow pressure 40

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