Plastic magnetic drive centrifugal pumps – STN

Plastic magnetic drive centrifugal pumps – STN

SPEAK TO US TODAY +27 31 701 52 55

The synchronous drive configuration is based on an outer magnet ring assembly built to magnetically couple with an inner magnet ring assembly. These two magnet rings are locked together by the flux of attracting magnet poles flowing through the containment isolation shell.

Versatility: the STN offers a wide range of materials for the wetted parts:

  • PP-GF (Polypropylene-Glass filled)
  • ETFE (Ethylene tetrafluoroethylene)
  • CFR-ETFE (Carbon filled – Ethylene tetrafluoroethylene) – *only the casing

Reliability: suitable for handling corrosive, aggressive and hazardous liquids (low viscosity, clean or slightly contaminated) in the chemical applications
Design: made with a reliable quality as the ETN but designed for smaller applications or where the working condition are less critical

The synchronous drive configuration is based on an outer magnet ring assembly built to magnetically couple with an inner magnet ring assembly. These two magnet rings are locked together by the flux of attracting magnet poles flowing through the containment isolation shell.

Versatility: the STN offers a wide range of materials for the wetted parts:

  • PP-GF (Polypropylene-Glass filled)
  • ETFE (Ethylene tetrafluoroethylene)
  • CFR-ETFE (Carbon filled – Ethylene tetrafluoroethylene) – *only the casing

Reliability: suitable for handling corrosive, aggressive and hazardous liquids (low viscosity, clean or slightly contaminated) in the chemical applications
Design: made with a reliable quality as the ETN but designed for smaller applications or where the working condition are less critical

Technical data
SHAFT SEAL TYPE: Magnetic drive
CASING AND IMPELLER MATERIALS: PP – ETFE-CFR
IMPELLER TYPE: closed
EXECUTION: close-coupled
FLANGES: threaded execution as a standard (flanged execution optional)
MAXIMUM RATED PRESSURE @ 20°C: PN 6
MAXIMUM PERMISSABLE FLUID TEMPERATURE: PP: 0°C/+60°C
ETFE: -10°C/+70°C
MAXIMUM FLOW-RATE @ 2900 RPM: 28 m3/h
MAXIMUM HEAD @ 2900 RPM: 22 m
ALLOWABLE MEDIUM VISCOSITY RANGE: 1 cSt – 60 cSt
  • Technical data

SHAFT SEAL TYPE: Magnetic drive
CASING AND IMPELLER MATERIALS: PP – ETFE-CFR
IMPELLER TYPE: closed
EXECUTION: close-coupled
FLANGES: threaded execution as a standard (flanged execution optional)
MAXIMUM RATED PRESSURE @ 20°C: PN 6
MAXIMUM PERMISSABLE FLUID TEMPERATURE: PP: 0°C/+60°C
ETFE: -10°C/+70°C
MAXIMUM FLOW-RATE @ 2900 RPM: 28 m3/h
MAXIMUM HEAD @ 2900 RPM: 22 m
ALLOWABLE MEDIUM VISCOSITY RANGE: 1 cSt – 60 cSt

Performance curves