1/2 HP Liberty 3/8" Commercial Drain Pump, High Temprature Handling, SIngle Phase , 120V, 54 GPM
5 Available At All US Supply Locations

The Liberty 405 Commercial Drain Pump is engineered for demanding gray water applications requiring high-temperature and high-head capability. Designed for professional installation in commercial and institutional environments, the 405 utilizes Liberty’s QuickTree® Technology for service efficiency, allowing rapid access to the float switch without disassembling the plumbing system. Constructed for continuous operation in elevated temperature conditions, the system provides reliable wastewater removal for installations where gravity drainage is not feasible.
Details
- Model: 405
- Manufacturer: Liberty Pumps
- Type: Commercial Drain Pump
- Voltage: 120 VAC
- Technology: QuickTree® float switch access system
- Solids Handling: Up to 3/8 inch diameter
- Temperature Rating: High-temperature rated for commercial gray water discharge
- Configuration: Factory assembled and pre-wired system
- Application: Laundry trays, multi-compartment sinks, bar sinks, utility sinks, and dishwashers
Technical Specifications
- Electrical Supply: 120 VAC, single-phase, 60 Hz
- Motor Type: Permanent split capacitor (PSC), oil-filled for continuous duty
- Horsepower: 1/3 HP
- Full Load Amperage: Approx. 4.5 A
- Maximum Flow Rate: 50 GPM at 5 ft. head
- Maximum Head: 24 ft.
- Solids Capacity: 3/8 inch spherical solids
- Discharge Size: 1-1/2 inch NPT
- Reservoir Material: High-temperature engineered thermoplastic
- Switch Type: QuickTree® float switch with removable cover for service access
- Operating Temperature Range: Up to 140°F (60°C) continuous
- Inlet Configuration: 2 inch side or top inlet
- Check Valve: Integrated or field-installable check valve (as specified)
- Mounting: Floor-mount design with vibration isolation
- Compliance: UL/CSA Listed for wastewater applications
Summary
The Liberty 405 Commercial Drain Pump provides a high-performance wastewater handling solution for professional plumbing and mechanical contractors. Built for elevated temperature service and continuous-duty operation, the unit’s 3/8 inch solids capability and QuickTree® service access make it suitable for heavy-use commercial and institutional environments. The fully assembled configuration simplifies field installation and ensures consistent performance in applications lacking gravity drainage.
Specifications
| Weight | 68.500000 |
|---|---|
| Length (inches) | 24 |
| Width (inches) | 24 |
| Height (inches) | 28.25 |
| Item Type | Water Pumps |
| Brand | Liberty |
| Manufacturer | Liberty Pumps |
| MPN | 405 |
| Pump Type | Drain Pump |
| Sub Type | Drain Pump |
| Warranty | 3 year |
| Amperage Rating | 7.3 A |
| Bearing Type | Sealed |
| Domestic/Import | Domestic |
| Horsepower | 1/2 hp |
| Maximum Diameter of Solids | Up to 3/8 in |
| Maximum Head | 34 ft |
| Outlet Size | 2 in |
| Phase | 1.00E+00 |
| Pump Parts Type | Drain Pump |
| Primary Voltage | 115 V |
| Item Returns | This item can be returned |
