Automatic circulation pumps are usually integrated with automatic control systems, which can automatically operate according to the needs of the system without human intervention.Three speed circulation pump are automatically regulated by built-in sensors, controllers and regulating valves. When the temperature, pressure or flow in the system reaches the preset value, the pump will automatically start or stop, or adjust the operating status of the pump as needed.
application

LPS series three speed circulation pump are designed for heating ,domestic hot-water, air-conditioning and cooling system.
The three speed circulation pump body are available in various materials like brass,stainless steel ,cast iron and making them suitable for different range of applications.
The pumps are reliable and maintenance-free.
features and benfits
- Material: H 180℃ high temperature resistance copper wire motor
- Working silent: Micro noise ≤45 dB supplying silent lifr
- Easier installation: Suitable for any installation,just keep the pump shaft in a horizontal position
- Working long life: Maintenance-free
- User-friendly: Plug and play
- Corrosion-resistant: Composite impeller supply excellent anti-corrossion function
Advantage
- Energy saving and high efficiency:
- Since it can automatically adjust the operating status according to actual needs, the automatic three speed circulation pump can effectively reduce energy waste and improve the overall energy efficiency of the system.

- Reduce manual intervention:
- Automatic control reduces the dependence on operators, and the system can adjust the operating status according to needs, which greatly improves work efficiency.
- Improve system stability:
- The automatic circulation pump can monitor and adjust system parameters (such as temperature, pressure, flow, etc.) in real time to ensure the stable operation of the system.
- Extend equipment service life:
- By reducing unnecessary start-stop and overload operation, the automatic three speed circulation pumpcan reduce the burden on the equipment and extend its service life.
- Convenient maintenance:
- Many automatic circulation pumps are equipped with fault diagnosis and alarm functions, which can detect and solve potential problems in time and reduce downtime.
Three speed circulation pump composition

| Item no. | Name | Item no. | Name |
|---|---|---|---|
| 1 | Pump body | 2 | Impeller |
| 3 | Shield cover | 4 | Seal gasket |
| 5 | Ceramic ring | 6 | Graphite ring |
| 7 | Washer | 8 | Rotor assembly |
| 9 | Ceramic bearing | 10 | Shield sleeve |
| 11 | Stator assembly | 12 | Seal gasket |
| 13 | Hexagon screw | 14 | Pump barrel |
| 15 | Nameplate | 16 | O ring |
| 17 | Bleeder screw | 18 | Cable protector |
| 19 | Electrical box bottom cover | 20 | Fastening screw |
| 21 | Circuit board | 22 | Fastening screw |
| 23 | Cable fixed clip | 24 | Capactior |
| 25 | Electrical box upper cover | 26 | Fixed screw |
| 27 | Knob |
Performance parameters
| Model |
Power (W) |
Max Head (M) |
Max flow (m³/h) |
Inlet/Outlet (G) |
|---|---|---|---|---|
| LPS15-40 130 | 100/65/45 | 6/5/4 | 2.2/1.5/1 | G3/4" |
| LPS15-90 | 120/59/28 | 9/4.5/2.3 | 1.8/0.8/0.4 | G3/4" |
| LPS15-110 | 145/106/74 | 11/8.5/5 | 1.8/1.6/0.8 | G3/4" |
| LPS20-40 130 | 85/55/35 | 4.5/4/3 | 2.1/1.5/1 | G1" |
| LPS20-60 130 | 100/65/45 | 6/4.2/1.5 | 2.6/1.8/1 | G1" |
| LPS20-120 | 285/220/145 | 12/10/7 | 3.8/2.5/1.8 | G1" |
| LPS20-150 | 400/304/172 | 15/14/11 | 4.2/2.2/2 | G1" |
| LPS25-40 | 85/55/35 | 4.5/3.5/2 | 3/1.5/0.6 | G1-1/2" |
| LPS25-60 | 100/65/45 | 6/4.5/3 | 6.3/1.5/0.6 | G1-1/2" |
| LPS25-70 | 125/105/82 | 7/6.4/5 | 3.6/3/2.1 | G1-1/2" |
| LPS25-80 | 245/210/140 | 8/6.5/4 | 8.6/5.7/2.4 | G1-1/2" |
| LPS25-120 | 285/220/145 | 12/9.3/4.8 | 3.9/2.7/1.5 | G1-1/2" |
| LPS32-40 | 85/55/35 | 4.5/3.5/2 | 3.6/1.8/2 | G2" |
| LPS32-60 | 100/65/45 | 6/4.5/3 | 3.6/2.5/1.5 | G2" |
| LPS32-70 | 125/105/82 | 6.7/6.2/5.2 | 4.5/3.6/3 | G2" |
| LPS32-80 | 245/210/140 | 8/6.5/4 | 11/7.5/4 | G2" |
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