Tilting skimmers for oil separators

BELKI teknik designs and manufactures a wide range of different units for skimming the liquid surface. All BELKI’s tilting skimmers are actively self-adjusting, ensuring that only the area of the liquid surface where the concentration of oil is greatest is skimmed.

In order to select the right tilting skimmer for the respective task, the capacity, space ratios, level variation and particle contamination of the liquid surface must be taken into account.

The first step is to choose the right cup size for the oil separator, see the table below. A-cup is the largest and E-cup the smallest.

Then select a type of tilting skimmer suitable for the other factors that apply, see the chart below.


Numbers of connectable tilting skimmers

Oil separator l/h A-cup B-cup C-cup D-cup E-cup
211H 25 1 1
321 150 1-2 1-2 1-2
60S 300 1 1-2 1-2 1-2
200LS 600 1 1-2 1-2
500LS 1200 1 1-2

Suitable tilting skimmer

Suitable tilting skimmer Type 01 Type 02 Type 03 Type 04 Type 08 Type 20 Type 40
Big level variation X X X
Less space in the tank X X X
Particles in the fluid X X X (A-D) X

Capacity for cups

This table gives an overview of the capacity of a selection of BELKI standard cups. The capacity of the individual cup depends on the fact, that the level variation doesn’t have to be done by the cup itself. The variation is done either by a free-floating tilting skimmer or by a tilting skimmer with elbow. The capacity given below is the absolute, maximum capacity at a constant level and a correctly set cup.

Cup (type) A B B B C D
Width (mm) 150 50 100 150 100 80
Capacity (l/min) 160 40 60 160 50 40


Suitable brackets for tilting skimmers

BELKI has a variety of mounting brackets for easy installation of the tilting skimmers for oil separators. The brackets are available individually and as a set.

Stainless steel brackets:
Brackets 3 and 9 as well as sets 3+4+5 and 1+2+3+4+5 are suitable for mounting pipe sizes 1/4", 1/2" and 10 mm. The brackets 6 and 8 and the sets 4+5+6 and 1+2+4+5+6 are suitable for mounting the pipe sizes 3/4"–1".

Brackets with magnet:
For easy mounting of brackets on magnetic tanks and surfaces, we recommend the use of a magnet in conjunction with brackets 3 (Magnet set 1) or 3+4 (Magnet set 2) for the pipe sizes 10 mm to 1/2".
For pipe sizes 3/4"–1" we recommend using a magnet in combination with the brackets 6 (Magnet set 3) or 6+4 (Magnet set 4).




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