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Schmitt U Series Pumps
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U Series

As an entry-level model, these normal priming plastic centrifugal pumps with single mechanical seal are perfect for aggressive media and weak/medium strength acids with metallic particles.

With this closed-coupled pump, the power of the motor is directly applied to the impeller by a shaft. Therefore it works without slippage. A single mechanical seal ensures the leakproofness of the U series. Overall, these centrifugal pumps can be used almost everywhere. The variety of materials available means that we can adapt them to almost all pumping media and conditions. As with the MPN series, all sizes of the U series are also available in ATEX-certified versions. This means that they can also be used in ATEX Zone 2. These versions have the designation U-EX

DESCRIPTION

Pump Curve

Features

  • Economic and robust alternative to magnetic drive pumps
  • Well-suited for solid-containing fluids due to spring-loaded mechanical seal
  • Pumping of magnetic particles possible
  • Low-maintenance-operation due to high-quality seal face materials
  • All wet parts made of high-quality, corrosion-resistant materials
  • Threaded connections (ISO 228-1) as standard
  • Available with flange connections from size 130
  • Universally applicable, low-noise and compact close-coupled design

Fields of applications

Delivery of acids, bases, bases or other corrosive liquids in such applications, where a hermetically sealed pump is not required. Delivery of acids and bases or other corrosove liquids containing low to the medium amounts of solid particles

 

For example in the following applications:

  • Plating and surface coating
  • Semiconductor technology and solar cell production
  • PCB and electronics manufacturing
  • Wastewater and fresh water treatment
  • Laboratory equipment and medical technology
  • Emission controls and gas scrubbers
  • Battery production and energy storage
  • High-purity applications, demineralized water, ultrapure water

Characteristics

Pump housing: PVDF

Elastomers: FKM, EPDM, FEP, FFKM

Material of mechanical seal faces: PTFE/Al2O3, carbon/Al2O3, SiC/SiC, SiC/carbon

Operating conditions

  • Max. flow rate: up to 30 m³/h
  • Max. delivery head: up to 40 m
  • Liquid temperature: -5 to 95 °C (PVDF)
  • Ambient temperature: -10 to 40 °C, higher temperatures on request
  • Pumps can be adapted to high-density liquids (up to 2.0)

Motors

Standard motors (available from stock)

  • Three-phase motors: D230 / Y400 V-3ph @ 50 Hz, D265 / Y460 V-3ph @ 60 Hz, IP 55, Ins.-Cl. F, also with PTC
  • All motors from 0.75 kW have energy efficiency class IE3
  • Single-phase motors (up to 1.1 kW: 230 V-1ph, 50 / 60 Hz, IP 55, Isol.-Kl. F)
  • ATEX-certified motors (temperature rating T3)

Special motors (available on request, for example)

  • Special voltages and frequencies · ATEX-certified motors (temperature rating T4)
  • Three-phase motors with integrated drive / frequency converter
  • Four-pole motors with 1450 rpm @ 50 Hz / 1650 rpm @ 60 Hz
  • UL- and CSA-certified motors
  • Special types of protection, e.g. IP 65
  • Special insulation classes, e.g. tropical insulation
  • Multi-voltage, e.g. D220–290 / Y380–500 V, 50 Hz; D220–332 / Y380–575 V, 60 Hz
  • Direct-current motors (DC or BLDC)
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