• Castings – Model 137, all cast iron ASTM class 25, 2500# tensile strength. Model 139, all bronze.
• Corrosion-resistant, powder coated epoxy finish (model 137)
• Durable, cast iron construction – switch case motor and pump housing, base and impeller
• Float-operated, 2-pole mechanical switch (automatic units only)
• No sheet metal parts to rust or corrode
• Oil-filled and hermetically-sealed, automatic reset thermal overload protected (1 Ph) motor
• Upper and lower sleeve bearings running in bath of oil
• Carbon and ceramic shaft seal
• Stainless steel screws, bolts, guard, handle, arm and seal assembly
• Maximum temperature for effluent or dewatering: 130 °F (54 °C) (extra duty: 140 °F / 60 °C)
• Passes 5/8” (16 mm) spherical solids
• No screens to clog
• 1-1/2” NPT discharge (1-1/2” x 2” PVC Adapter fitting included with BN and BE Models)
• On point: 10” (25.4 cm)
• Off point: 2-3/4” (7 cm)
• Simplex and duplex package systems available
• Variable level control systems available, designed for heavy-duty effluent applications
• Automatic and non-automatic models available
• 1 year limited warranty on model 139
• 3 year limited warranty on model 137

Consult Factory for Special Application

• Electrical alternators for duplex systems are available and supplied with an alarm
• Mechanical alternators for duplex systems are available with or without alarm switches
• Simplex panels are available for 3 Ph pumps
• Control alarm systems are available for 1 Ph pumps
• Variable level control switches are available for controlling 1 and 3 Ph systems
• Double piggyback, variable level float switches are available for variable level long cycle controls
• Over 130 °F (54 °C) – special quotation required
• Consult factory for temperatures over 130 °F (54 °C)

Notes

The sizing of effluent systems normally requires variable level float(s) controls and properly sized basins to achieve required pumping cycles or dosing timers with non-automatic pumps.

Pumps must be operated in upright position.

Reserve Powered Design.

For unusual conditions a reserve safety factor is engineered into the design of every Zoeller pump.