Drain Pump for Home Appliances
Engineered for efficiency and performance, our drain pumps use quality materials to ensure reliability in tough environments.
LEILI offer customizable options to meet specific application needs, supporting OEM production and tailored solutions for diverse household drainage systems.
- Wire Material: Cu, Al
- Rated Voltage: 110-310V
- Flow Rate: 15-38L/min
- Insulation Class: E/F
Drain Pump Structure
- Motor: Drives the rotor or impeller and supplies power to the pump.
- Rotor: Transfers mechanical energy from the motor to create fluid movement.
- Pump Body: Encases internal components and directs fluid flow.
- Impeller: Rotates to create suction and move water through the pump.
- Seal: Protects the motor from dampness and stops water leaks.
- Inlet and Outlet Ports: Permit water to effectively enter and exit the pump.
- Bearing: Reduces friction between rotating parts, ensuring smooth operation.
- Shaft: Connects the rotor to the impeller for motion transfer.
- Mounting Base or Bracket: Provides stability and support during operation.
By Motor Type
AC Synchronous Motor
- Uses an AC synchronous motor
- Common in home appliances (like washing machines or dishwashers)
- Offers stable speed control
BLDC Motor
- Uses a brushless DC motor
- High efficiency, low noise, longer lifespan
- Ideal for energy-saving and smart appliances
BLAC Motor
- Uses a brushless AC motor (a type of PMSM)
- Offers high torque and precise control
- Suitable for high-end or industrial-grade systems
By Operation Mode
On/Off (Binary) Mode
- The pump is either fully on or completely off.
- Basic washing machines and dishwashers.
- Managed by a relay or timer in the control board.
Timed Operation
- The pump runs for a pre-set time, regardless of water level.
- Avoids overdraining or dry-run conditions by running only for the needed time.
- Apply for older or simpler appliances.
Sensor-controlled Mode
- Driven by input from a water level sensor, pressure switch, or flow sensor.
- Stops when the sensor detects that water has been fully drained.
- Typical in: More advanced or energy-efficient machines.
Pulse or Intermittent Mode
- The pump turns on and off in short bursts.
- Some dishwashers to prevent airlocks or aid in draining foam-laden water.
- Improves draining performance in challenging conditions.
Featured Products
BPX201/202 AC Synchronous Drain Pump
- Rated Voltage: 110-240V
- Power: 40W
- Stator: 20mm
- Flow Rate: 17L/min
BPX1/2 AC Synchronous Drain Pump
- Rated Voltage: 110-240V
- Power: 35W
- Stator: 25mm
- Flow Rate: 17L/min
BPX1 AC Synchronous Drain Pump
- Rated Voltage: 110-240V
- Power: 30/35W
- Stator: 25mm
- Flow Rate: 17L/min
Three Phase Brushless Drainage Pump
- Rated Voltage: 220-240V
- Power: 35W
- Stator: 10mm
- Flow Rate: 15L/min
Applications
Washing Machine
- Removes dirty water after wash and rinse cycles.
- Water is pumped to a floor drain or standpipe via the drain hose.
Mobile Air Conditioner
- Condensate drain pump removes moisture, prevents overflow, transfers water efficiently.
- Enables continuous drainage, supports flexibility, no manual water emptying needed.
Clothes Dryer
- Removes condensed water collected during drying cycles.
- Pumps it into a reservoir or out through a drain line.
Dishwasher
- Pumps dirty water out after each wash or rinse cycle.
- Prevents backflow and ensures complete drainage for hygienic cleaning.
FAQ
1.How does a drain pump work?
Water is moved via a discharge pipe by means of an impeller that is rotated by an electric motor.
2.What makes a sump pump different from a drain pump?
Drain pumps remove water from appliances or fixtures, while sump pumps remove groundwater from basements or pits.
3.Do all washing machines have drain pumps?
Yes, modern washing machines include built-in drain pumps to remove water after wash and rinse cycles.
4.Can drain pumps handle hot water?
Yes, but only heat-resistant models designed for hot water applications like dishwashers or steam equipment.
5.How frequently should my drain pump be maintained?
Inspect and clean every 3–6 months depending on usage and environment.
6.What causes a drain pump to fail?
Common causes include clogs, debris, overheating, worn-out impellers, or electrical faults.
