Dab Pumps TR8

8' submersible motor

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Dab Pumps

Mestrino, Italy
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8' submersible motor

Rewindable 8" submersible asynchronous two or four-pole electric motor available in standard version with casing in AISI 316 stainless steel and supports in cast iron. The thrust block and bushes are cooled and lubricated with a mixture of water and glycol. The rotor is mounted on a Mitchell self-centring thrust block designed to withstand significant axial loads. The motor is also available in a version entirely in AISI 316 stainless steel and a version in AISI 904. There is also a version suitable for use with variable frequency drive (30 Hz - 50/60 Hz). The motor is equipped with a single-core cable of 8 m connected directly to the winding, and is available in DOL or STAR-DELTA configuration. The cable is ACS, WRAS and KTW certified. The electrical protection must be
provided by the user. On request: PT100 and PTC temperature probes, cables of a different length, different voltage supply, special shaft terminals and protection class IP68.

Flanging: NEMA 8".
Protection class: IP58 (IP68 on request).
Cooling flow speed: 0,5 m/s.
Power supply tolerance: + 6 % / -10 %.
Max. starts: 10/h.
Max operating depth: 300 m.
Max operating temperature: 60 bar.
Horizontal operation: 30 HP - 125 HP.

The rewindable stator is protected by an AISI 316 stainless steel jacket (AISI 904 on request). In the standard version the rotor is wound with PVC coated wire. On request, we can supply a version with a PE2+PA winding that makes the motor compatible with special applications and with the use of a variable frequency drive. Mitchell type thrust bearings with lapped pads in graphite and ceramic clearance ring.
from 30 HP to 150 HP: 60000 N
Counter-thrust load: 12500 N
Rotor shaft in stainless steel with shaft extension to NEMA 8" standards. The rotor is in copper for all sizes. In the standard version the motor is supplied with a ceramic/carbon mechanical seal. A silicon carbide (SiC/SiC) mechanical seal
is available on request. The motor can also be fitted with an additional lip seal (IP68).

Further info from manufacturer on TR8

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