Over 60 Years

Sealless Magnetic Drive Pumps

Vertical Submerged Sealless Magnetic Drive Pump

SLM-NVT

Klaus Union's SLM-NVT is a sealless centrifugal vertical submerged pump with permanent magnetic coupling, for tank installations requiring zero leakage.

Operating Parameters

  • Flow rates up to 5,500 GPM
  • Total delivery heads up to 700 feet
  • Temperature ratings from -58 °F (-50 °C) to +302 °F (+150 °C)
  • Flange rating per ANSI B16.5 Class 150 and Class 300

Pumping

  • Aggressive, explosive and toxic liquids
  • Acids & lyes
  • Hydrocarbons
  • Heat transfer liquids
  • Liquid gases
  • Difficult-to-seal liquids
  • Ultrapure liquids

Applications

  • Tank installations
  • Chemical and petrochemical industries
  • Refineries
  • Refrigeration and heat engineering
  • Liquid gas plants
  • Galvanic engineering
  • Pharmaceutical industries
  • Fibers industries

Construction

  • Vertical mounted sealless centrifugal pump with dry supporting column
  • Separation of liquid chamber/atmosphere by means of an isolation shell
  • Permanent magnet drive system, no mechanical seal
  • Synchronous drive transmitted by inner and outer magnet systems
  • Liquid lubricated internal bearings made of pure, sintered silicon carbide
  • Bearings of outer magnet carrier: deep groove ball bearings

Standard Materials

Pump casing: 316 SS
Impeller: 316 SS
Isolation shell: 316 SS/Hastelloy C4
Inner magnet carrier: 316 SS/Hastelloy C4
Internal bearings: Silicon carbide,
alpha grade
Supporting column: Carbon Steel
Magnets: Rare earth samarium
cobalt

Materials listed are equivalent to DIN/ISO standards.

Special Alloy

  • Hastelloy B
  • Hastelloy C
  • Alloy 20
  • Titanium

Other materials available

Optional Features

  • PMP 25 - Power monitor
  • TPS - Isolation shell temperature probe
  • CDS - Double-wall isolation shell (dual containment)
  • Self-cleaning internal & external filter for liquids containing solids
  • External flush connection
  • Isolation shell materials: Titanium, non-metallic (carbon fiber/PTFE)
  • Internal bearing materials: Carbon/SSIC, carbon/stellite

Hydraulic Coverage

Specifications are subject to change.