Pump Rotor

Weight: 1.225kg (2.7lb)
Alloy: Proprietary Steel - F-0005
Tensile Strength: 275.79MPa (40,000 psi)
Elongation: 2%
Apparent Hardness: 55 HRB
Density: 7.1 g/cc (.256 lb./in.3)
Fatigue Endurance Limit: 103.4 MPa (15,000 psi)
Secondary Operations: Turn OD/ID, Hub and bore
Alternative Process: Machined Casting
Estimated Annual Production: 4,000

Application: These High Aspect Ratio (5-1) rotors are used in pumps that take petroleum fuels from an in-ground tank up to the gasoline pump used to fill your automobile. These pumps have three ranges: Low viscosity - High efficiency, General Purpose and High demanding applications.

The hydraulic pump rotor is used in conjunction with an idler gear and side pump cover that are also being converted from a machined casting to powder metal. As the rotor and idler unmesh, an underpressure is created and the liquid enters the newly created cavities. Liquid is then transported in sealed pockets to the discharge side.

The walls of the pump casing and the crescent creates a seal, that separates the suction from the discharge side. The rotor and idler mesh and liquid is pushed into the discharge line.

The pumps see a max capacity of 250m3/h, differential pressure of 20 bar and temperatures up to 300 degrees Celsius.