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Pumping chocolate with wafer pieces is no easy task. Excess heat, ingredient caramelisation, and pump failures can quickly disrupt production and impact product quality. When a confectionery manufacturer faced these exact issues with a lobe pump, the solution came in the form of a Graco sanitary flap valve diaphragm pump.
At a Glance
— PROCESS: Chocolate with wafer inclusions
— PROBLEM: Heat from lobe pump caused caramelisation, residue build-up, and downtime
— FIX: Installed a Graco sanitary flap valve diaphragm pump
— RESULT: Consistent pumping, no heat damage, and reliable production
Common Challenges
— HEAT & CARAMELISATION: Changes product texture and reduces quality.
— PROBLEM: Heat from lobe pump caused caramelisation, residue build-up, and downtime
— FIX: Installed a Graco sanitary flap valve diaphragm pump
— RESULT: Consistent pumping, no heat damage, and reliable production
From Challenge to Solution
— THE SITUATION: A confectionery manufacturer used lobe pumps for chocolate processing but struggled once wafer inclusions were added.
— THE ISSUE: Excessive heat from the lobe pump caramelised the mix, hardened residue built up, and eventually caused the pump to seize. This resulted in frequent downtime and costly maintenance.
— THE CHANGE: The Graco sanitary flap valve diaphragm pump was recommended and installed. Its low-heat design and ability to handle particulates resolved the issues immediately.
— THE OUTCOME: Since adopting the Graco pump, the manufacturer has experienced smooth, uninterrupted production with no caramelisation or pump failures.
Customer Feedback
"Just a note to let you know that after the trial of the Saniforce AODD pump on our chocolate ganache packing line, we have installed the second pump to pack off our white truffle chocolate. Both pumps are now working without any issues.
The pumps are performing a lot better than the original lobe pumps due to their ability to handle both varying viscosity products and products with inclusions without blocking or stalling."
— Perry J
Product Overview
Graco Saniforce™ 1590 HS Pneumatic Diaphragm Pump
The Graco SaniForce 1590 HS is a 1.5-inch air-operated double diaphragm (AODD) pump designed for hygienic applications in food, beverage, and other sanitary industries. Built with stainless steel (SST) components, it ensures durability, cleanliness, and compliance with strict hygiene standards.
The SaniForce 1590 HS is trusted by manufacturers looking for a robust, clean, and reliable pumping solution that maintains product integrity while ensuring continuous, efficient operation.
Key Features Included
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High Flow Capacity: Handles flow rates up to 60 gpm, making it suitable for demanding production lines.
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Sanitary Construction: Stainless steel body and fluid-contact components support
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Quick Knock-Down Design: Enables fast disassembly for cleaning, reducing downtime and maintenance effort.
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Versatile Performance: Ideal for handling products with varying viscosities and inclusions without clogging or stalling.
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Cost-Effective: Lowers total cost of ownership with minimal maintenance and reliable operation.