EKON, EKOS columns


Aeration and air release EKON columns and drain flushing EKOS columns guarantee safe operation and give a possibility of precisely situating pipeline congestion.

The basic functions of the EKON, EKOS columns are draining and supplying large air volumes, protecting the pipeline from hesitating pressure, dry running pumps, waterhammers.

The EKON columns have the air release valve which ensure the correct operation of pressure pipeline and the EKOS columns serve as revision.

The SZUSTER system columns are multifunctional and guarantee safe operation. In traditional solutions the air release valve is located in the manhole chamber.

The operators during operational activities are exposed to the threat of deadly poisonous gases such as hydrogen sulfide and explosive methane. The EKON, EKOS columns eliminate these serious threat, because the servicing operations are performed from the ground level.


Technical data

  • Column types: EKON (aeration and air release), EKOS (drain-flushing).
  • Range of available diameters: DN50–DN200.
  • Nominal pressure: PN 1.0 MPa or PN 1.6 MPa.
  • Flange connection: PN-EN 1092-2.
  • Sewage with or without feacals, rainwater and industrial.
  • Sewage temperature from 5°C to 70°C and pH 4-8.


  • Used for flushing and draining of the pipeline under pressure in any direction.
  • Used for air release of the pipeline in the highest points of the sewage transport network on long ascending or descending sections of the pipeline, before throttling places and after the pumps are used.
  • Used for aeration of the pipeline in sections threatened by vacuum.

Our columns are especially recognized by the Users of sewage systems. Servicing, safety and ease of use decide on popularity of this solution. In comparison to the traditional solutions, the EKON, EKOS columns have many advantages.

For Users

  • Pipeline flushing and draining owing to the standpipe.
  • Complete servicing from the ground level improves safety for the User.
  • Fast assembly and disassembly of the aeration valve and cost reduction enabled by the use of a quickfastening coupling.
  • The possibility of precisely situating pipeline congestion by mounting the gauge on the standpipe unit.

For Engineers

  • Complete servicing from the ground level improves safety for the User.
  • Eliminates branching out of the pipeline as in the case of release wells.
  • Reduced construction footprint is especially important in compact construction areas.

Product development is our priority. We listen carefully to the opinion of our customers, thus constantly creating new versions and improvements.

Operation principle of EKON, EKOS columns

The assembly is performed on the horizontal section of the pipeline in a vertical position with a maximum deviation of +/- 2°. An important advantage of EKON, EKOS columns is the ability to precisely locate the congestion, that has formed in the discharge line. It is possible thanks to the mounted vacuum manometer on the standpipe unit. By analyzing the pressure drop, the section which is not drained can be accurately determined. By using the gate valves on both sides of the columns and the innovative quick coupling, which should be plugged into the standpipe, it is possible to make the column retooling. The selected section must be flushed of the congestion and then restored to its original condition. The whole operation should take less than 15 minutes.


Range of parameters and construction of columns

Cast iron columns
DN PN* X Y Z d K l x n EKON column weight EKOS column weight Standpipe weight
[mm] [Mpa] [mm] [kg]
80 1,0 ~680 ~500 158 180 8 x M16 110 97 13,8
100 1,0 ~690 ~500 188 210 8 x M16 120 107 13,8
150 1,0 ~750 ~540 212 240 8 x M20 167 154 13,8
200 1,0 ~770 ~540 268 295 8 x M20 217 204 13,8
INOX columns
DN PN* X Y Z d K l x n EKON-INOX column weight EKOS-INOX column weight Standpipe weight
[mm] [Mpa] [mm] [kg]
50 1,0 ~535 ~440 ~585 102 125 4 x M16 78 71 13,8
65 1,0 ~540 ~445 ~590 122 145 4 x M16 82 75 13,8
80 1,0 ~535 ~440 ~585 138 160 8 x M16 86 70 13,8
100 1,0 ~550 ~440 ~590 158 180 8 x M16 96 81 13,8
125 1,0 ~560 ~455 ~590 188 210 8 x M16 100 86 13,8
150 1,0 ~570 ~460 ~610 212 240 8 x M20 104 91 13,8
200 1,0 ~630 ~465 ~665 268 295 8 x M20 114 101 13,8

Operation principle of EKON, EKOS columns