Viking Pumps designed for grease are used for varying grease applications.
Common Grease additives can include:
petroleum or synthetic oils as a dispersion medium
soaps or other thickeners as dispersed phase
antioxidants, corrosion inhibitors, and anti-wear agents to provide specific properties required for the grease application.
Jacketed pumps may be used for soap oil concentrates, which must be heated to over 200°C for high-temperature greases.
Generally, mixtures of a mineral oil with one or more metallic soaps; the most common are those of sodium, calcium, barium, aluminum, lead, lithium, potassium, and zinc. The texture of grease may be smooth, buttery, ropy, fibrous, spongy, or rubbery. Viscosities range greatly. However, grease is extremely shear sensitive. Typically flow is aided by a follower-plate on the supply tank.