Streisal - Model TSR -Submersible Agitators with Step-Down Gear Unit
Technical properties: Power range: 1,5 – 18,5 kW. Mains frequency: 50 or 60 Hz. Axial thrust: up to 4920 N. Circulating rate: up to 7200 m³/h. Propeller diameter: to 1015 mm. Coolant/medium temperature: max. 60 °C. Mechanical seal: Pairing of SIC/SIC. Submersion depth: max. 20 m.
- Housing GG25
- Seal holder Stainless steel 1.4301 (V2A)
- Connecting elements Stainless steel 1.4301 (V2A)
- Motor shaft 1.7225
- Propeller Stainless steel 1.4301 (V2A)
- Mechanical seal Silicon carbide
- Slide Stainless steel 1.4301 (V2A)
- Corrosion protection Inertol Poxitar for standard applications
- Ceramic coating or the like for aggressive media, or according to customer request
- For use in potentially explosive atmospheres, TSR submersible agitators are available with the "pressure-tight encapsulation" explosion protection category (Ex d) according to ATEX (zones 1 and 2)
- Temperature monitoring in the motor winding
- Monitoring of the seal system by "streisal Toplimiter" leakage probe – optionally also in tandem version, i.e. with two mechanical seals and oil chamber on the inlet end
Applications are above all in municipal and industrial waste water treatment, biogas generation, industrial process technology and agriculture. In addition to avoiding deposits and floating layers, the devices can also be used for a wide range of agitating and mixing tasks.
For use in potentially explosive areas, submersible motor agitators in the TSR series are available in the "pressure-tight encapsulation" explosion protection category II 2G Ex d ib IIB T3 according to ATEX. The maximum coolant/medium temperature is 60 °C.
A decisive feature for comparing the efficiency of agitators is what is referred to as the first performance number as a quotient of the generated thrust force and the energy observed at the operating point. The propeller geometry that has undergone further development in the streisal fluid mechanics laboratory involving the use of the latest measuring technology and has been optimised in the test tank (large scale) means that enormously high thrust values are possible with a low power consumption. This means much lower and operating costs!
Mechanical seal systemIt has been shown in practice that reliability and durability of shaft seals are decisive criteria for trouble-free operation. In particular in media with relatively coarse or abrasive solids, long-fibre constituents and disruptive substances (such as plastic strands, films, etc.), the unique and patented seal system from streisal offers a series of advantages:
- Highly wear-resistant streisal Seal Guard mechanical seal made of silicon carbide
- Upstream labyrinth seal to prevent penetration by disruptive substances
- Submersible agitator housing with easily replaceable wearing ring
- Mechanical seals are protected by being mounted in a stainless steel holder
- Spring elements on the inside, not in contact with the medium
Even though EU Directive 640/2009 does not specify minimum efficiency values for submersible agitators, the motor versions of the new series are available in efficiency classes IE2 (high efficiency) and IE3 (premium efficiency). The changeover to energy-saving systems pays off directly, especially in agitators with high numbers of operating hours. With IE2 and IE3 submersible motor agitators from streisal, you can demonstrate your environmental awareness at the same time as saving a lot of energy and costs.