Low-speed
submersible agitators ATP/BTP

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TECHNICAL PROPERTIES

Power range 1.5 – 11 kW
Mains frequency 50 or 60 Hz
Axis thrust up to 4,000 N
Circulating rate up to 10,829 m³/h
Propeller diameter up to 2,650 mm
Coolant/medium temperature max. 60 °C
Mechanical seal SiC/SiC pairing
Immersion depth max. 20 m

TECHNICAL SPECIFICATIONS

Technical specifications: ATP

Type Power rating Current rating Propeller speed Axial thrust Circulating rate *
  kW (P2) A rpm N m³/h
ATP 16 1.5 3.55 22 800 5,347
ATP 26 2.2 5.1 27 1,650 6,955
ATP 34 3 5.9 26 1,900 8,241
ATP 44 4 7.8 33 2,900 9,220
ATP 54 5.5 10.7 38 3,500 10,129
ATP 74 7.5 14.6 41 4,000 10,829
Motor 400 V, IE2 (IE3 can be selected), rated frequency 50 Hz, index of protection IP 68
Energy-saving motors have higher inrush currents due to their design!
  * Circulating rate according to ISO 21630:2007

 

 

Technical specifications: BTP

Type Power rating Current rating Propeller speed Axial thrust Circulating rate *
  kW (P2) A rpm N m³/h
BTP 74 7.5 14.6 55 2,400 4,893
BTP 114 ** 11 21 55 3,200 6,053
Motor 400 V, IE2 (IE3 can be selected), rated frequency 50 Hz, index of protection IP 68
Energy-saving motors have higher inrush currents due to their design!
  * Circulating rate according to ISO 21630:2007
** Energy efficiency class IE1

 

DIMENSIONS AND WEIGHTS

Dimensions of ATP submersible agitator
Dimensions of ATP submersible agitator
Type D L L 1 Weight
  mm mm mm kg *
ATP 16 2,650 1,700 381 295
ATP 26 2,400 1,630 381 295
ATP 34 2,650 1,700 381 300
ATP 44 2,400 1,630 381 300
ATP 54 2,400 1,630 381 305
ATP 74 2,400 1,630 381 310
BTP 74 1,400 1,375 381 280
BTP 114 1,500 1,375 381 292

* Agitator without carriage

MATERIALS

Housing GG25
Seal holder Stainless steel 1.4301 (V2A), optionally stainless steel 1.4571 (V4A)
Connection elements Stainless steel 1.4301 (V2A)
BTP propeller Stainless steel 1.4301 (V2A)
ATP propeller High-strength, wear-resistant polymer with steel core
Propeller shaft 1.7225 (not in contact with medium)
Mechanical seals Silicon carbide
Carriage Stainless steel 1.4301 (V2A), optionally stainless steel 1.4571 (V4A)
Corrosion protection lnertol Poxitar for standard applications
Ceramic coating or the like for aggressive media, or according to customer request

SAFETY

  • For use in potentially explosive atmospheres, ATP/BTP submersible agitators are available with the "pressure-tight encapsulation" ignition protection type (Ex db) according to ATEX and IECEx (zones 1 and 2).
  • Temperature monitoring in the motor winding
  • Monitoring of the seal system by "streisal Toplimiter" leakage probe in tandem version, i.e. with two mechanical seals and oil chamber on the inlet side

LOTS OF THRUST WITH LITTLE ENERGY

Slow-running submersible agitators of the ATP/BTP type enable large quantities of fluid to be circulated gently. With large diameters and low speeds, these agitators generate maximum thrust with the smallest possible use of energy or electricity. By combining different motors, gearboxes and propeller types/sizes, it is possible to offer submersible motor agitators with the appropriate performance for a wide range of applications: flow generation, circulating, suspension of solids such as in water treatment, process technology, etc.

HARSHEST AMBIENT CONDITIONS

For use in potentially explosive atmospheres, submersible motor agitators in the ATP/BTP series are available in the "pressure-tight encapsulation" ignition protection type II 2G Ex db ib h IIA T3 Gb according to ATEX and IECEx. The maximum medium temperature is 60 °C.

LOWEST SELF-GENERATED ELECTRICITY REQUIREMENT

The use of propellers with optimum hydraulic design, different gear unit ratios and high-efficiency motors (1E2 and IE3 according to IEC 60034-30) achieves maximum overall efficiency.

MECHANICAL SEAL SYSTEM

It has been shown in practice that reliability and durability of shaft seals are decisive criteria for trouble-free operation. The unique seal system from streisal offers a range of advantages:

  • Two highly wear-resistant silicon carbide mechanical seals (tandem version)
  • Mechanical seals are protected by being mounted in a stainless steel holder
  • Spring elements on the inside, not in contact with the medium
streisal Seal Guard tandem seal system
streisal Seal Guard tandem seal system

OPTIMALLY EFFECTIVE PERFORMANCE

With large propeller diameters and low speeds, these submersible agitators develop maximum thrust. The flexible positioning and alignment means that the flow direction can be adapted to the particular tank shape. The self-cleaning propeller shape ensures a constantly high agitating effect and operation without vibration, even when the medium contains fibres.