Positive displacement gear pumps are ideal for chocolate manufacturing due to their precise flow control, maintaining ingredient ratios and product quality. They handle chocolate gently, minimizing shear and temperature effects, which preserves texture and prevents aeration. These pumps ensure consistent chocolate flow, crucial for processes like molding and enrobing. They handle high-viscosity fluids efficiently, ensuring smooth operations with thick substances.

Solvents are materials that dissolve another substance, the solute, to form a solution. They are used in paints, paint thinners and removers, dry cleaning, product manufacturing and chemical processing.

Shampoos are personal and pet care hygiene products used to remove and wash away dirt, oil and grime from hair. Some are medicinal, such as antiseborrheic, anti-bacterial or anti-fungal.

Most shampoos are 70% to 80% water, but the addition of rheological modifiers and other viscous ingredients increases their viscosity to 2,000 to 20,000 cPs, necessitating the use of positive displacement pumps. They are typically shear-thinning mixtures requiring low-shear pumping action. Shampoos are generally slightly acidic, lubricating liquids with pH in the range of 4.5 to 5.5.

Refined fuels are separated from crude oil at the refinery. They include kerosene-based jet fuels, fuel oils, diesels and gasolines, and their liquid characteristics vary widely.

Reclaimed Asphalt is asphalt paving that has been removed from roadways and milled or crushed into fine particles which can be added to virgin asphalt cement to create new Hot Mix Asphalt. The use of Reclaimed Asphalt Paving (RAP) improves the economics of roadways by reducing the amount of asphalt binder, aggregate, and mineral filler needed to make new Hot Mix Asphalt (HMA), while simultaneously eliminating the need to landfill waste demolition materials, making it both a cost-effective and environmentally responsible solution.

Massecuite is a mixture of raw sugar crystals and liquor made by seeding supersaturated cane or beet juice prior to crystallization and the removal of the molasses by centrifuging.  It contains a high concentration of abrasive sugar crystals. 

Liquified gases present many pumping difficulties including very low viscosity and lubricity, low specific gravity, low temperatures and require special sealing arrangements due to high inlet pressure. 

Positive displacement pumps, including close-clearance internal gear pumps and vane pumps are well suited to handling certain liquified gases due to their low NPSHr, low temperature metallurgy options, high pressure capabilities, resistance to vapor lock and many available sealing arrangements. 

Filled asphalts contain particulate and are used to manufacture asphalt roofing. The filler material improves durability and fire resistance of the shingle. Pumping filled asphalt requires special construction and operation to minimize abrasion, prevent leakage and extend pump life. 

Cold ethanol extraction is a common method for extracting oils from plant materials. Due to its polarity, ethanol is chilled to subzero temperatures to avoid extracting additional, less desirable water-soluble molecules.

In this application biomass is placed in vessel and cold ethanol solvent is pumped in. The desired oils are rapidly dissolved in this solvent. Unlike hydrocarbon solvents, ethanol has no risk of leaving toxic residual chemicals in the product, which is especially important if for human consumption.