gear pump , Iran

A gear pump consists of two meshing gears housed in a precision cavity. The gears are manufactured from hardened steel to ISO 1328 Class 7 accuracy. Gear width ranges from 10 to 50 millimeters depending on pump capacity. The clearance between gear and housing is maintained between 10-20 microns with a ±2-micron tolerance. These pumps can generate continuous working pressures up to 250 bar. Their nominal flow rate ranges from 1 to 150 liters per minute at 1500 RPM. Volumetric efficiency under ideal conditions reaches 95%. They are suitable for fluids with viscosities from 1 to 10,000 centistokes.

The pump body is constructed from aluminum or cast iron with an anti-wear coating. Shaft sealing is achieved with a mechanical seal rated for pressures up to 100 bar. Bearings are rolling type with lifetime lubrication for a 10,000-hour service life. An internal relief valve operates at 110% of the set pressure threshold. Generated noise level at one meter distance is kept below 70 decibels. These pumps can operate with mineral oils, synthetic fluids, and water-glycol solutions. Installation requires correct rotation direction and a flexible coupling. They are applied in industrial machinery hydraulic systems and fluid transfer applications.

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