Gear metering pumps are applied to:

; For metering and conveying fluids with viscosities ranging from (1 to 500,000 centipoise / 0.001~500 Pa·s) and allowing slight corrosion.

Gear metering pumps advantages:

High precision-----Under various conditions of temperature, viscosity, and pressure, stable and repeatable flow can be ensured, with metering accuracy up to 0.3%. Stable flow, pulse-free output.

Zenith Pumps metering pumps can meter the following materials: 

Adhesives|Detergents|Fruit juices|Plastics|Tar|Additives|Emulsifiers|Emulsions|Kerosene|Polyurethane|MDI|Urethane|Abrasives|Epoxy resins|Lubricants|Plasticizers|Pigments|Adhesives|Beverages|Flavors|Monomers|Resins|Vitamins|Slag|Fuel oil|Nutrients|Sealants|Aqueous solutions|Sugar solutions|Foam plastics|Oils|Silicone|Paraffin|Catalysts|Fillers|Oxidizers|Solvents|Chemicals|Glycol|Paints|Surfactants|Fermenting agents|Cosmetics|Hot melt adhesives|Perfumes|Defoamers|Zinc oxide|Deionized water|Ink pharmaceuticals|Tackifiers|Polymers|Dyes|Retarders|Water treatment|Spraying|Filling|Dispensing|Other products

Precision metering

Zenith gear metering pumps have a simple internal structure and advanced processing technology. All internal pump components are precision ground, with dimensional errors controlled within 0.000", ensuring minimal internal clearance to improve volumetric efficiency, guarantee output flow accuracy, and reduce the impact of external working condition changes on metering precision. Utilizing the accuracy of Zenith metering pumps, various additives can be precisely metered and uniformly injected into corresponding chemical raw materials for the manufacturing of final products. This application is widely used in pharmaceuticals, cosmetics, detergents, papermaking, petrochemicals, rubber and plastics, paint manufacturing, polyurethane, and other fine and general chemical industries. It is also used in tobacco, brewing, beverages, food, and other industries for metering auxiliary materials such as flavors, vitamins, and food colorings to ensure product quality and control production costs.

The working principle of gear pumps is to form enclosed gear spaces through a pair of meshing gears and the pump body, transferring materials from the pump inlet to the pump outlet. At the outlet, the meshing of the gears reduces the enclosed space, thereby extruding the material out of the pump body. Therefore, gear pumps do not have check valve mechanisms. This structural feature makes gear pumps most suitable for metering and conveying high-viscosity fluids, overcoming the issues of reduced pump efficiency, inaccurate metering, or even failure caused by check valve adhesion and incomplete closure in reciprocating pumps like piston and diaphragm pumps when handling high-viscosity materials. Zenith gear metering pumps can be used in the production of hot melt adhesives, adhesives, and polymer products. They are also widely used in other industries, such as self-adhesive labels, tapes, automotive windshield bonding, engine cylinder head seals, electronic components, and rubber and plastic products manufacturing.

Application processes

Online precision metering and dosing, two-component online metering, glue application, coating, high-viscosity fluid metering and conveying,