4K316SSB Floating Oil Skimmer in stainless steel 4000l/h


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4K316SSB Floating Oil Skimmer in stainless steel 4000l/h

4K316SSB Floating Oil Skimmer in Stainless Steel 

The 4K316SSB is a floating oil skimmer designed to remove oil or other contaminants from water. Its average capacity is 4000L or 1000G per hour. Well suited to both large and confined environments, it is lightweight enough to be part of a mobile response kit. Made from 316 marine grade stainless steel it is robust and resistant to a large array of corrosive chemicals and can easily be installed by one person.


  • Measures 340mm x 340mm x 230 to fit through a 350mm opening.

  • The draught is 160mm - from the water level to lowest part of bottom fitting.

  • Can also be supplied with with a slip on trash guard made from a 20mm polyethylene. Please contact us for more information on the trash guard

  • Materials used withstand high water temperatures and a wide variety of solvents including hydrocarbon-based materials as well as salt and caustic solutions.  


  • Light (4.15kg) and easily handled.

  • Simple installation and operation.

  • Unaffected by heat to 100c.

  • Marine grade stainless steel (316SS) has high resistance to corrosion.

  • Polypropylene & PVC heat and acid proof fittings.

  • Self-adjusting.

  • Floats, unaffected by changing water levels.

  • Low maintenance - no mechanical moving parts.

  • Small, 350mm diameter. operates in very restricted areas e.g. pits

  • Can be controlled remotely.

  • Supplied fully assembled

  • Capacity, effective to 4000 litres/Ph (1000 US Gallons)

  • Will work up to 6000 litres/Ph (1600 US Gallons)

  • Will work on gravity alone, without a pump.

  • We can configure our connection to suit your pump.

  • The stainless steel K4316SSB Micro Oil Skimmer an be fitted with a 20mmpolyethylene trash guard. 

  • The 4K316SSB floating oil skimmer measures 340mm x 340mm x 230 to fit through a 350mm opening.

  • The draught of the 4K316SS Floating Oil Skimmer is 160mm. That is from the water level to lowest part of bottom fitting.

  • This skimmer can also be supplied with with a slip on trash guard made from a 20mm polyethylene.

Manufacturing and how it works 

  • The main structure, floats, retainer straps and fasteners are made using 316 Marine grade stainless steel.
  • The 316 stainless steel floats are sealed and contain ballast to stabilise and hold the skimmer at the required depth..
  • The stainless steel floats are sealed  using 316SS x 1.5mm LSI BOC Stainless Steel Wire rod.
  • Pipes and  ancillary fittings used are constructed from Polypropylene. and  PVC plastic.
  • The 4K316SSB floating surface skimmer comes complete with a self-adjusting floating head.

The standard floating head used on the 4K316SSB oil skimmer is made a polypropylene fabric concertina machined with a rigid PVC head that floats at the surface. As water is drawn down through the concertina it automatically adjusts its horizontal position relative to the water’s surface to allow the required amount of  water as drawn by the pump to pass over it. The depth to which the weir positions below the surface of the water is known as the “cut”, the less the amount being pumped the finer the cut. It stands to reason therefore that the finer the cut is the heavier will be the concentration of contaminant drawn over the weir.



To ensure its proper operation, it is best to install the skimmer so that it floats reasonable evenly in the water without the influence of the suction hose pulling it into an uneven position.this may involve using flotation to support the hose somewhere near the the skimmer. The combination of the concertina and floating head will tend to level the weir in rough conditions and in situations where the unit is not entirely even in the water. To help achieve this outcome we have included 1.2 meter hose and fittings that should be fastened to the skimmer at the skimmers outlet. Install the hose so that it floats near the surface of the water. 

It is advisable to reduce the amount of water crossing the weir to a point where skimming is most effective. It is also advisable to use a pump that works within the parameters of the 4K316SSB skimmers design, if this can’t be achieved, a water bypass valve to reduce the intake of water over the weir at the head of the skimmer should be installed. When the skimmer is at rest in the water, ideally the top of the floating weir should be just below either the surface or just barely breaking the surface. Adjustments can be made as needed to lower or raise the floating weir by loosening the straps at the bottom of the floats and raising or lowering the floats as required. This requirement however is very unusual.

Applications and other models

The Dragonfly Micro Oil Skimmers are used for a wide variety of applications including emergency response, pre-separation, Floating oil removal from holding ponds & tanks, Truck & vehicle wash bays, industrial applications, mine sites, In conjunction with vertical separators and numerous, other applications. We also sell other models which are made entirely from polypropylene and can withstand even high temperatures and caustic and corrosive environments. If you require a larger capacity skimmer, the 25K316SSB 25000L/h is a large capacity skimmer still suitable to confined areas. 

For further information

In many situations we can modify the skimmers to suit your unique application. Please contact us if you require any assistance.


12 month warranty