Chemical, Paint Factories – Flowrox
Industry: Chemical, Paint Factories
Product: Flowrox Peristaltic Pump (LPP-T)
Application: Latex Emulsion
Flowrox has supplied eight LPP-T65 Pumps to Alcro-Beckers. a leading Swedish paint producer. The LPP-Ts have been successfully operating since the start up of a new Latex paint factory in 2007.
Alcro-Beckers is owned by the Finland’s biggest paint company Tikkurila Oy, part of Kemira Group.
The company’s production facilities are one of the most environmentally friendly in the world.
Production is fully automatic, based on the precise recipes to comply with the requirements of the standard ISO14001.
The maximum production capacity of water based latex totals 30 million litres a year. The manufacturing process includes the following stages: pre-mixing, grinding or dispersing, finishing, colorizing, filtration and filling cans.
Flowrox LPP-T pumps were chosen instead of previously used screw pumps for feeding emulsions to the dissolvers and to the finishing tanks. When the screw pumps ran dry damage was caused to mechanical seals stator and rotor assembly.
The binders in the Latex emulsions become very hard if they are in contact with air. As the mechanical seals wear, they leaked and created maintenance and environmental problems.
The advantages of Flowrox pumps include the fact that only the hose is in contact with the emulsion. This isolates pumped medium from being in contact with air. Seal less LPP-T pumps remain unaffected by dry running even for prolonged periods.
In LPP-T pumps the contra-rotating rotor rotates along the hose and the process medium is pushed forward through the hose. At the same time, the hose behind the compression point reverts to its original shape creating a suction effect at the pump inlet port.
As a result, the hose bore gets filled with the medium. No backward flow can occur as the hose is squeezed tight by the roller. The LPP-T pump is also very gentle to the pumped medium preventing unwanted shear an mixing of the product.