Johnson CM90 High Flow Centrifugal Pump – 12V / 24V
Description
The Johnson CM90 High Flow Centrifugal Pump is a compact magnetic-drive circulation pump designed to deliver high flow rates from a 12V or 24V DC power supply.
Available with 20mm (3/4") or 38mm (1-1/2") connections, the CM90 delivers up to 90L/min at 0.25 Bar depending on the selected model. It is suitable for fresh water, salt water and water/glycol mixtures containing up to 60% glycol.
Johnson CM90 High Flow Centrifugal Pump
The Johnson CM90 combines a compact centrifugal pump design with continuous-duty DC operation, making it suitable for a range of water circulation and transfer applications.
The magnetic-drive design transfers motor power to the pump impeller without a conventional shaft connection through the pump housing, providing a compact pumping solution for compatible fluids.
Key Features
- Johnson CM90 high-flow centrifugal pump
- 12V or 24V DC operation
- Continuous-duty motor
- Magnetic-drive pump design
- Maximum input power: 120W
- Choice of 20mm (3/4") or 38mm (1-1/2") connections
- Up to 90L/min at 0.25 Bar depending on model
- Glass-fibre reinforced PPA pump body
- Suitable for fresh water
- Suitable for salt water
- Suitable for water/glycol mixtures containing up to 60% glycol
- Compact design
Two Flow Options
The CM90 is available in two connection sizes with different stated flow rates at 0.25 Bar:
- CM90 – 20mm (3/4"): 50L/min at 0.25 Bar
- CM90 – 38mm (1-1/2"): 90L/min at 0.25 Bar
Select the connection size and pump configuration appropriate for the required system flow and plumbing arrangement.
Continuous-Duty DC Operation
The CM90 uses a 12V or 24V DC continuous-duty motor with a stated maximum input power of 120W.
This makes the pump suitable for compatible mobile, marine and DC-powered circulation systems where continuous operation may be required.
Compatible Fluids
The supplied specifications list the CM90 as suitable for:
- Fresh water
- Salt water
- Water/glycol mixtures containing up to 60% glycol
For other fluids, confirm chemical and material compatibility before use.
Typical Applications
- Marine water circulation
- Caravan and mobile water systems
- Fresh-water circulation
- Salt-water circulation
- Water/glycol circulation systems
- General compatible DC pumping applications
Specifications
| Specification | Details |
|---|---|
| Brand | Johnson |
| Series | CM90 High Flow |
| Pump Type | Magnetic-drive centrifugal pump |
| Pump Body | Glass-fibre reinforced PPA |
| Motor | 12V / 24V DC, continuous duty |
| Maximum Input Power | 120W |
| Compatible Fluids | Fresh water, salt water and water/glycol mixtures up to 60% glycol |
| Connection Options | 20mm (3/4") or 38mm (1-1/2") |
| Dimensions | 253 x 120 x 149mm |
| Weight | Approx. 3.0kg |
Flow Performance
| Pump Option | Flow Rate @ 0.25 Bar |
|---|---|
| CM90 – 20mm (3/4") | 50L/min |
| CM90 – 38mm (1-1/2") | 90L/min |
Installation & Selection
Actual flow will depend on the complete system, including plumbing diameter, hose or pipe length, fittings, restrictions and operating pressure.
Ensure the selected pump voltage matches the electrical system and that wiring, circuit protection and connections are appropriately sized for the installation.
For applications requiring lower flow rates, see the standard flow Johnson CM-Series Centrifugal Pumps.