GAS MASTRRR Series 32 description

The GAS MASTRRR series 32 submersible design allows the chemicals to be flash mixed directly into the water stream, channel, chamber, or rapid mix box with superior velocity gradient mixing intensity. The units are available in vacuum style for gas or liquid chemical induction, or nonvacuum style for liquid flash mixing. The units easily install with new or retrofit with existing chemical feed equipment. Stainless steel guide rails and lifting crane/hoists are available for easy retrieval of the unit for maintenance inspection.

The series 32 utilizes a rugged and reliable U.S.A. manufactured submersible motor of 316 stainless steel construction for long-term duty in harsh submerged environments. The motors are liquid filled, water cooled, and are available for single and three phase service with a variety of VAC power voltage options.

The series 32 unit is available in ranges from 1/2 - 25 Hp for feed rates up to 10,000 PPD gas and 60 GPM liquid chemical per unit. The units are available in vacuum, nonvacuum, or a combination for dual chemical feed.

The series 32 unit has a full 360 degree unobstructed high rate chemical discharge pattern that is radial outward from the unit. This unique discharge pattern allows for high velocity gradient mixing intensity and eliminates short circuit potential in wide channel applications.


The single chemical feed design allows a gas or liquid to be flash mixed directly into the water stream. Applications include chlorine gas or sodium hypochlorite for chlorination, sulfur dioxide gas or sodium bisulfite for de-chlorination, ammonia for chloramination, cabon dioxide, and atmospheric air.

The dual chemical feed design allows multiple gasses, liquids or a combination of gas and liquid to be mixed directly into the water stream. The chemicals are isolated until flash mixed together at the rotating mixing distributor. Applications include chlorine and ammonia gas for chloramination.

The dual chemical feed (high/low shear) design allows multiple chemicals to be fed with diffrent mixing intensities. Gas and liquid or a combination of liquids can be flash mixed from a single unit. The chemicals are isolated until flash mixed together at the rotating mixing distributor. The first feed port directs the chemical through the rotating mixing distributor providing a high shear in excess of 60 fps. The second feed port directs the chemical to an internal annulus ring that drops the chemical around the rotating mixing distributor and is swept away in the discharge mix pattern with a low shear intensity. Applications include chlorine gas and auquaous ammonia for chloramination, alum and polymer for coagulation, and many other dual feed combinations.

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