Via Carlo Goldoni 3720090 Trezzano sul Naviglio (Milano - Italia) P.IVA 00210510152SDI t04zhr3
A gear pump is a volumetric pump that use the variation in volume caused by the meshing of the teeth of two toothed wheels to cause a suction and a thrust of a fluid. They are preferred in all those applications where the pumped fluid is viscous, but in reality they are used to pump almost any type of fluid that does not have a solid abrasive content. Gear pumps have advantages over other volumetric pumps:- Good negative suction head.- Excellent delivery repeatability.- Do not generate flow pulsations- Flow constant on time- Terocially won’t be affected by use and work- Selfpriming under most applications- Suitable for high pressure- Excellent for high viscosity fluids- Can be made in a wide variety of materials- Easy maintenance without special tools
Into a gear pumps the two rotors, that are respectively called driving and driven rotor, are seated in a body that round them from all side. As the gears rotate they separate on the intake side of the pump, creating a void and suction which is filled by fluid. The fluid is carried by the gears to the discharge side of the pump, where the meshing of the gears displaces the fluid out of the spaces between the teeth. The tight mechanical clearances (in the order of 5 μm), along with the speed of rotation, effectively prevent the fluid from leaking backwards through the meshing zone of the gears. The rigid design of the gears and houses allow for very high pressures and the ability to pump highly viscous fluids.
Common gear pump applications include, but are not limited to:- Fuel or lube oils metering and tranfer- Chemical additive and polymer metering- Chemical mixing and blending - Industrial and mobile hydraulic applications- Acids and caustic- Bitumen transfer- Transfer of vegetable oils- Diathermic oil circulation- Resins dosing and transfer- Polyol and isocyanate assays- Fuel loading and unloading- Lubrication of gearboxes and compressors- Multi-phase wellhead oil circulation- Wind power plants lubrication- Increase dosing and paints- Processing of food liquids- Treatment of substances for cosmetics- Bilge pumps and naval applications
Available certifications and compliance:DIRECTIVE 2006/42/EC (CE marking requirements)DIRECTIVE 2014/34/UE (ATEX)ISO 9001:2015 (Integrated quality management system)FDA (only for material “FDA Certificated”)API 676 (Compliance)NFPA20 (Compliance)Applied harmonized standards:EN 809:2009EN 12162:2009EN 12100:2010EN 1127-1:2011EN 13463-1:2009 EN 13463-5:2011EN 15198:2008
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