Venting valve Type BFH

APPLICATION

TURBO-Mixer type BFH are used to run fine bubbles of air or gas through both domestic and industrial waste liquids and also in the aeration of static waters. They are particularly suitable for the nitrification – denitrification of sewage plants with optional or intermittent aeration.

OPERATING METHOD

In contrast to other aeration systems our aerators aerate and disperse the whole contents of the container uniformly, right down to the bottom. TURBO-Mixer aerators achieve excellent circulation with low power output. As the revolutions increase, the amount of pumped liquid rises between the pressure drops to the level of the static water pressure and the system sucks in air from the surface through the pipe. The gas and liquid mixture is then pushed through by the impeller and splits up into very small gas bubbles by the mechanical cutting action. These bubbles flow through the whole container and distribute themselves to its maximum depth. Trough the fine air bubbles the surface absorption is increased many times over. The constantly escaping air releases unwanted gases into the atmosphere.
The TURBO-Mixer BFH can be used without flooding: both under suction (Model A) and under pressure via a closed pipe (Model B). A particular advantage of this pressurised gas delivery is obtained when using pressurised containers into which not only oxygen and hydrogen can be injected, but also ozon.

DISCRIPTION

The TURBO-Mixer BFH is identical in its design to the DFH types. Both the quill drive motor with reinforced bearings and the shaft which is inserted into it are taken from modular design system. The materials used for the pipe shaft and impeller are 316 Ti, rubberised or plastic coated steel.

MIXING IMPELLER

The TURBO-Prop mixing impellers were developed especially for these applications. They are perfectly suited for the sucking of large amounts of gas, the dispersing of the finest gas bubbles and the suspension of particles under heavy pressure. They are screwed on. Replacement is possible at any time.

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