Lorentz PU1800 CS-37-1 Solar Water Treatment Plant 36m³/h 14m Centrifugal
Modelo: 10-005580 PU1800 CS-37-1, UL, ID 90mm- Sku: LOREDEP004
- Vendor: Lorentz
Specifications
Product Description
The Lorentz PU1800 CS-37-1 Solar Pool Filter is the surface pumping unit —ECDRIVE 1800 motor + CS-37-1 centrifugal hydraulics— without controller. It allows the installer to choose the most suitable electronics (for example, a PS2-1800) according to the PV array and operating strategy. With a flow rate of up to 36 m³/h and a maximum head of 14 m, it is perfect for large pool filtration systems and solar recirculation in residential, hotel, or light industrial applications.
Main Features
- PU unit: includes brushless ECDRIVE 1800 motor and CS-37-1 centrifugal pump head (controller not included).
- Hydraulic performance: 36 m³/h flow rate and 14 m head.
- ECDRIVE 1800 motor: 1.7 kW nominal, 900–3,300 rpm, max. efficiency 92%, class F, IPX4 protection.
- CS-37-1 hydraulics in PP with integrated non-return valve; max. efficiency 57%.
- Continuous operation: water temperature up to 60 °C and suction/positive intake up to 3 m.
- Approximate weight: pump unit 17 kg (motor 9.7 kg + head 6.8 kg) for robust and stable installation.
Advantages or Benefits
- Total system flexibility: select the ideal controller (e.g., PS2-1800) according to the PV generator and operating mode.
- Reduced maintenance thanks to the brushless motor and optimized centrifugal hydraulics.
- Longer service life due to corrosion-resistant materials and outdoor-ready design.
- Excellent flow-pressure ratio for large filtration systems and recirculation with moderate losses.
Purpose or Applications
Recommended for large pool filtration, hotels, campsites, clubs, fountains, and ponds. It can be used in off-grid or hybrid solar installations, and in water transfer processes where high flow rates with medium pressures are required.
Technical Specifications
| Pump type | Centrifugal CS-37-1 with non-return valve |
| Maximum flow rate | 36 m³/h |
| Maximum head | 14 m |
| Motor | ECDRIVE 1800, 1.7 kW, 900–3,300 rpm, max. efficiency 92%, class F |
| Controller | Not included (required for operation; PS2-1800 recommended) |
| Protection (motor) | IPX4 |
| Water temperature | Up to 60 °C |
| Suction/positive intake | Up to 3 m |
| Hydraulic materials | High-strength PP |
| Approx. weight | Pump unit 17 kg (motor 9.7 kg + head 6.8 kg) |
Compatibilities
Generally compatible with solar pump controllers (e.g., Lorentz PS2-1800) and with photovoltaic arrays sized to the chosen electronics (respecting Voc, Vmp voltage limits and currents). Supports standard accessories such as level/flow sensors, prefilters, and DC/AC protections according to regulations.
The Lorentz PU1800 CS-37-1 Solar Pool Filter offers you the hydraulic power of a large filtration system with the freedom to choose the electronics and PV generator that best suit your solar project.
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Lorentz PU1800 CS-37-1 Solar Water Treatment Plant 36m³/h 14m Centrifugal





