Food & Drink Process & Packaging Issue 18 2018 | Page 25

Helping food processors stay in control of dosing with PC pumps WRITTEN BY Lesley Eaton, Business Development and Marketing Manager, SEEPEX Right first time, every time When food processors need to dispense By providing an accurate, linear flow, PC pumps a constant, accurate amount of product, dispense the correct amount of ingredients every dosing pumps are essential. But not all time, maintaining product quality and reducing dosing pumps are the same – progressive wastage. Installation and maintenance costs cavity (PC) pumps are fast becoming the are reduced compared to alternative solutions, dosing pump of choice for customers looking for superior performance. too. System costs are also lower, as the lack of What’s the problem? as PC pumps can be wall-mounted or installed Many traditional dosing pump designs have a pulsating action. This results in a gap in the process and can cause uneven distribution of ingredients. Some of these pump designs also require check valves; if solid or viscous particles get caught behind the valves it can cause them to stick, blocking the pump and halting the process. In contrast, PC pumps are virtually pulsation-free. They use a rotor/stator pumping action which delivers pulsation reduces the wear on pipework. And vertically, horizontally or even upside down, they A sticky situation Unlike traditional pump designs, PC dosing pumps can handle highly viscous products, sticky materials and those that contain solid particles. The action of PC pumps is also low-shear, meaning they can dose traditionally difficult-to-pump solid, semi-solid or shear-sensitive materials without damaging them. The use of pulsation dampeners, flow control valves and ball valves is not required, are suitable for almost any site. Pumped up about Industry 4.0 Finally, it’s important to keep in mind the impact that Industry 4.0 is set to have on UK food manufacturing. SEEPEX’s range of PC dosing pumps includes a Smart Dosing Pump. Users input just one parameter – the proportional flow ratio – and the pump, featuring an integrated a continuous flow into the product stream. either. This means they can be used in complex PLC monitor, makes any necessary adjustments In the case of SEEPEX’s PC dosing pumps, applications, such as dosing directly into product automatically. It provides all the benefits of a this produces a stable flow rate with a linear streams for in-line blending. They are also able to PC dosing pump with enhanced control options, accuracy of +/-1%. handle corrosive and abrasive materials. future-proofing your dosing system. SMART DOSING PUMP (SDP). A progressive cavity pump with integrated controls for optimum dosing perf ormance SEEPEX’s SDP has an intelligent inverter drive programmed locally via a HMI or centrally via a fi eldbus interface. The SDP can be controlled by analogue or digital I/Os either locally or remotely by a PLC. The fl ow rate is controlled entirely from the pump drive which adapts to variations in operating conditions ensuring accurate repeatable dosing of thin to highly viscous products. BENEFITS  Easy implementation of complex dosing in continuous and batch modes  Minimal pulsation and high accuracy  Easy integration into higher-level controls and automation systems  Temperature /pressure sensors protect the pump  Conveying capacity: up to 2,000 l/h  Pressure: up to 48 bar SEEPEX UK Ltd. [email protected] www.seepex.com FDPP - www.fdpp.co.uk 25