The chocolatier benefitted from the close-coupled internal gear pump.
The chocolatier benefitted from the close-coupled internal gear pump.

The European chocolatier asked Triark Pumps to help because the machinery needed to handle an already troublesome medium, namely chocolate, but in this case, with the addition of 'inclusions', such as nuts and raisins.

The main issue is that chocolate is ‘shear sensitive’, meaning the cocoa butter and cocoa solids can easily separate if moved too fast, which can burn the chocolate. Chocolate will also react the same way if the discharge pressure is anywhere over 100psi, so correct configuration of the discharge lines is crucial.
 
Triark supplied two Desmi Rotan 2 inch positive displacement internal gear pumps. Each pump was coupled to an SEW 1.5 kW, IP55, EFF1 gear motor and mounted on a fabricated ‘top hat’ style stainless steel base plate, with a stainless steel coupling guard.