Leaks belong to the past

Article published in

photovoltaic production - April 2010

By Daniele Nardin, Sales Manager CEE-CIS / MIDDLE EAST at CP

Facts for decision-makers

Magnetic drive pumps:

When it comes to handling toxic or corrosive fluids, magnetic drive pumps are widely accepted as a safe choice.
With the reverse drive principle, the magnetic rotor is located on the outer diameter of the containment shroud and the magnet driven by the motor is on the inner and atmospheric side.
For applications involving hazardous fluids like acids, PFA lined sealless magnetic drive pumps are used instead of conventional metallic pumps.

Introduction

Contamination-free pumps in PV production: toxic liquids often need to be pumped in the various process steps of photovoltaic manufacturing, from chemical production of polysilicon through to cell and module production. To eliminate the risk of leaks, ever greater use is being made of hermetically sealed magnetic drive pumps, such as have been used in the chemical industry for many years. This paper gives an account of current developments in magnetic drive pumps.

‘Sealless’ pumps

Magnetic drive pumps are now widely used and recognised as a safe choice for handling toxic, flammable or corrosive fluids in the chemical industry. As the principle of driving a pump with a magnetic coupling becomes more widespread, the more important it is to focus on the original function of such pumps, namely handling hazardous liquids without leakage by avoiding dynamic seals. As a consequence, these pumps have recently been described more often as ‘sealless’ rather than in terms of their drive or coupling principle.

Read the full original article as a PDF file

Read the full article in photovoltaic production (pp. 18-19; English only)