March AC-2AP-MD 230 VAC Magnetic Drive Centrifugal Pump 0125-0069-0500

The March 0125-0069-0500 AC-2AP-MD is the 230V, single-phase version of March's compact Series 2AP air-cooled magnetic drive centrifugal pump. It is designed for compatible chemical recirculation, chemical transfer and equipment-circulation applications requiring sealless magnetic-drive operation.

At 60 Hz, the AC-2AP-MD is rated for a maximum flow of 5 GPM and maximum head of 13 feet, with 0.025 HP motor power. At 50 Hz, hydraulic performance is reduced, so the applicable manufacturer curve should be reviewed for the actual electrical frequency and system operating point.

Sealless Centrifugal Magnetic Drive Pump

Magnetic coupling transfers motor torque through the containment area to the internal impeller. Because a conventional rotating motor shaft does not penetrate the wet-end housing, the design eliminates the traditional mechanical shaft seal and helps reduce seal-related leakage and maintenance.

Standard Wet End Materials

The standard AC-2AP-MD configuration combines polypropylene front housing, rear housing and impeller, Viton O-ring, ceramic shaft, ceramic thrust washer and ceramic magnet. These materials create the standard wetted configuration for the pump, but suitability must still be evaluated for the specific process liquid.

Smooth Inlet and Outlet Connections

The AC-2AP-MD uses a 3/4-inch OD smooth inlet and 1/2-inch OD smooth outlet. Connection style is an important distinction when replacing another Series 2 model because related March pumps are also available with threaded inlet and outlet arrangements.

Operating Range and Application Considerations

March lists a maximum internal pressure of 50 PSI and maximum liquid temperature of 190°F / 87°C. Pump suitability also depends on fluid chemistry, concentration, specific gravity, viscosity and actual operating temperature.

Typical Applications

March identifies applications including etching equipment, photographic processing, ice makers and ice flakers, plate processors and marine air conditioning. The AC-2AP-MD is also intended for compatible chemical recirculation and transfer duties where its materials and hydraulic performance meet system requirements.

Exact 230V Variant

Manufacturer part number 0125-0069-0500 is the AC-2AP-MD 230V complete standard pump. Buyers requiring the 115V version should use the corresponding 0125-0069-0400 configuration rather than assuming the motors are interchangeable.

Selection Guidance

Before replacing or specifying the pump, verify electrical supply, required flow, total dynamic head, hose connection sizes and fluid compatibility. Matching the exact manufacturer part number is especially useful when replacing an existing AC-2AP-MD installation.