Product Description
Standard Features
- Float-operated, submersible, 2-pole mechanical switch and variable level, long-cycle systems available
 - Corrosion-resistant, powder-coated epoxy finish
 - No sheet metal parts to rust or corrode
 - Stainless steel screws, switch arm, guard, and handle
 - No screens to clog
 - Watertight, neoprene square ring between motor and pump housing
 - Solid, buoyant, polypropylene float
 - Oil-filled, hermetically-sealed, automatic reset thermal overload protected motor
 - Upper and lower sleeve bearings running in bath of oil
 - Entire unit pressure-tested after assembly
 - Carbon and ceramic shaft seal
 - Maximum temperature for effluent or dewatering: 130 °F (54 °C)
 - Passes 1/2” (13 mm) spherical solids
 - 1-1/2” NPT discharge
 - On point: 7-1/4” (18 cm)
 - Off point: 3” (8 cm)
 - Major width: 10-3/32″ (26.2 cm)
 - Major height: 10-1/16″ (25.6 cm)
 - Watertight and dust-tight
 - 3 year limited warranty
 
Model 53®
- Cast iron switch case, motor and pump housing
 - Engineered thermoplastic base
 - Engineered, glass-filled, plastic impeller with metal insert
 - Stainless steel guard and handle
 - Cast iron sleeve bearings
 
| Motor | 3/10 HP | 
| Voltage | 115 or 230 V | 
| Phase | 1 Ph | 
| Hertz | 60 Hz | 
| RPM | 1550 RPM | 
| Type | Shaded pole | 
| Insulation | Class B | 
| Amps | 4.8 – 9.7 Amps | 
| Operation | Automatic or nonautomatic | 
| Auto On / Off Points | 7-1/4″ / 3″ (18.4 cm / 7.6 cm) | 
| Discharge Size | 1-1/2″ NPT | 
| Solids Handling | 1/2″ (12 mm) spherical solids | 
| Cord Length | 9′ (3 m) auto, 15′ (5 m) nonauto | 
| Cord Type | UL listed, 3-wire cord and plug | 
| Max Head | 19.25′ (5.9 m) | 
| Max Flow Rate | 43 GPM (163 LPM) | 
| Max Operating Temperature | 130 °F (54 °C) | 
| Cooling | Oil filled | 
| Motor Protection | Auto reset thermal overload | 
| Cap | Cast iron or bronze | 
| Motor Housing | Cast iron or bronze | 
| Pump Housing | Cast iron or bronze | 
| Base | Cast iron, bronze or engineered thermoplastic | 
| Upper Bearing | Sleeve bearing | 
| Lower Bearing | Sleeve bearing | 
| Mechanical Seals | Carbon and ceramic | 
| Impeller Type | Non-clogging vortex | 
| Impeller | Plastic, cast iron or bronze | 
| Hardware | Stainless steel | 
| Motor Shaft | AISI 1215 cold roll steel | 
| Gasket | Neoprene | 
Special Applications:
- Variable level float switches
 - Variable level long cycle systems
 - Special cord lengths of 15’, 25’ or 35’ (5 m, 8 m or 11 m). 50′ (15 m) cord lengths available for 230 V units only.
 - Alarm systems
 - Duplex systems
 - Variable level control systems.