OBERDORFER

Oberdorfer mag-drive rotary gear pumps use magnetic coupling to drive the gears, eliminating mechanical seals. This design reduces leak paths and maintenance associated with seal replacement. The pumps feature 316 stainless steel bodies and 316 stainless steel gears, providing corrosion resistance. Port sizes range from 1/4" to 1-1/2" FNPT, with motor options from 1/3 hp to 3 hp and voltages of 115/230V AC or 230/460V AC. They are suitable for transferring clean, non-abrasive, low-viscosity fluids. The mag-drive configuration also provides low pulsation and leak-free operation, making these pumps appropriate for industrial fluid handling where containment is important.

Flow rate depends on the specific model, motor speed, and operating conditions. Oberdorfer rotary gear pumps are positive displacement pumps, so flow is proportional to speed and largely independent of pressure. For the mag-drive models supplied by 3G Electric, flow rates vary with port size and horsepower. For example, a 1/2 hp pump with 1/2" ports will have a lower flow than a 3 hp pump with 1-1/2" ports. To determine the exact flow for a given SKU, refer to the performance curve in the product documentation. Factors such as fluid viscosity and system pressure also affect actual flow. 3G Electric provides specifications for each pump to assist in selection.

Oberdorfer mag-drive rotary gear pumps are generally intended for clean, low-viscosity fluids. High-viscosity fluids can increase resistance and may reduce flow or cause excessive load on the magnetic coupling. For viscous media, a mechanically sealed gear pump or a different pump type may be more appropriate. The mag-drive design relies on magnetic torque transmission, which can slip if the load exceeds the coupling's capacity. Therefore, these pumps are best applied to fluids with viscosity similar to water or light oils. Always verify compatibility with the specific fluid and consult the pump's operating limits. 3G Electric can provide guidance on model selection based on fluid properties.

3G Electric stocks repair kits for Oberdorfer rotary gear pumps. These kits typically include replacement gears, bearings, O-rings, and other wear components. The exact contents vary by pump model and size. Repair kits allow maintenance personnel to refurbish pumps, restoring performance and extending service life. Using genuine Oberdorfer repair kits ensures proper fit and material compatibility. When ordering, specify the pump model and serial number to receive the correct kit. 3G Electric's catalog lists repair kits alongside pump SKUs, and the technical team can assist in identifying the right kit for your pump. Regular maintenance with these kits can reduce downtime and maintain pump efficiency.

3G Electric supplies Oberdorfer mag-drive rotary gear pumps with port sizes including 1/4", 1/2", 3/4", and 1-1/2" FNPT. Voltage options are 115/230V AC and 230/460V AC, covering single-phase and three-phase power. Horsepower ratings range from 1/3 hp to 3 hp. This variety allows selection based on flow requirements, available power, and piping connections. For specific combinations, refer to the individual SKU listings. The pumps are designed for standard industrial power supplies, and the dual-voltage motors can be wired for either voltage. 3G Electric provides detailed specifications for each model to aid in matching the pump to your system.

The mag-drive design eliminates the mechanical shaft seal, which is a common leak point in conventional pumps. Instead, the motor's rotation is transmitted to the pump gears through magnetic coupling across a containment shell. This static seal prevents fluid from escaping along the shaft. The containment shell is typically made of non-magnetic material, and the wetted parts are 316 stainless steel for corrosion resistance. This seal-less construction reduces maintenance and the risk of environmental contamination. It also allows the pump to handle fluids that may be hazardous or costly to leak. However, mag-drive pumps are not suitable for fluids containing ferromagnetic particles, which can accumulate on the magnets and affect performance.