1. Einleitung
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Pedrollo CPM150 centrifugal water pump. Please read these instructions carefully before installing or operating the pump. Retain this manual for future reference.
The Pedrollo CPM150 pump is designed for handling clean liquids with minimal sediment. It is suitable for various applications including industrial liquid recycling (cold or hot), filtration processes, water treatment, and general agricultural or domestic use.
2. Sicherheitshinweise
Always observe the following safety precautions to prevent personal injury and damage to the pump:
- Ensure the pump is installed by qualified personnel in accordance with local electrical and plumbing codes.
- Vor Beginn jeglicher Installations-, Wartungs- oder Reparaturarbeiten die Stromzufuhr unterbrechen.
- Do not operate the pump with flammable, corrosive, or explosive liquids.
- Schützen Sie die Pumpe vor Frost.
- Ensure proper ventilation around the pump. The ambient temperature should not exceed 40°C.
- Never run the pump dry. This can cause severe damage.
- Tragen Sie während der Installation und Wartung geeignete persönliche Schutzausrüstung (PSA).
3. Produktüberschreitungview
The Pedrollo CPM150 is a robust centrifugal pump featuring a cast iron pump body with cataphoresis treatment. The impeller is made of INOX AISI 304 stainless steel, and the motor lantern is aluminum. The pump is designed for continuous service (S1).

Abbildung 1: Explodierte view of the Pedrollo CPM150 pump, showing internal components. Key parts include (1) Pump Body, (2) Impeller, (3) Mechanical Seal, (4) Motor Shaft, (5) Bearings, (6) Motor Casing, (7) Capacitor (for single-phase), and (8) Stator/Rotor Assembly.
The single-phase 220V motor includes integrated thermal protection to safeguard the pump against unexpected starts or overheating. The coupling shaft between the impeller and the electric motor is made of INOX EN 10088-3 - 1.4104. The mechanical seal, composed of carbon, ceramic, and nitrile, ensures a tight seal between the pump body and the electric motor.
4. Spezifikationen
Below are the key technical specifications for the Pedrollo CPM150 pump:
| Besonderheit | Spezifikation |
|---|---|
| Modell | CPM150 |
| Leistung | 0.75 kW |
| Bandtage | 220 V Single-Phase |
| Frequenz | 50 Hz |
| Durchflussrate (Q) | 0 bis 7.2 m³ / h |
| Head (HMT) | 29.5 bis 15 Meter |
| Flüssigkeitstemperaturbereich | -10°C (with antifreeze) to +90°C |
| Umgebungstemperatur | Not exceeding 40°C |
| Pumpenkörpermaterial | Cast Iron with Cataphoresis Treatment |
| Laufradmaterial | INOX AISI 304 Stainless Steel |
| Motorschutz | IPX4 |
| Isolationsklasse | F |
| Kontinuierlicher Service | S1 |
| Rotationsgeschwindigkeit | 2900 U/min |

Abbildung 2: Performance curves for Pedrollo CP series pumps at 50 Hz and 2900 rpm. This graph illustrates the relationship between flow rate (Q) in l/min or m³/h and total head (HMT) in meters or feet for various models, including the CPM150.
5. Installation und Einrichtung
Proper installation is crucial for the pump's performance and longevity. It is highly recommended that installation be carried out by a qualified professional.
5.1. Montage
- Mount the pump on a solid, level, and vibration-free surface.
- Ensure the installation location is dry, well-ventilated, and protected from direct sunlight, rain, and freezing temperatures.
- Allow sufficient space around the pump for ventilation and maintenance access.
5.2. Rohrleitungsanschlüsse
- Use pipes of adequate diameter to minimize friction losses.
- Install a foot valve with a strainer on the suction line if the pump is not self-priming or if there's a risk of debris.
- Ensure all connections are airtight to prevent air leaks, which can affect priming and performance.
- Support piping independently to avoid stressing the pump's connections.
- Install isolation valves on both suction and discharge lines for easier maintenance.
5.3. Elektrische Verbindung
- Überprüfen Sie, ob die Stromversorgungsspannungtage and frequency match the pump's specifications (220V, 50Hz).
- Schließen Sie die Pumpe an einen separaten Stromkreis an, der durch einen Fehlerstromschutzschalter (FI-Schalter) und einen geeigneten Leitungsschutzschalter geschützt ist.
- Stellen Sie sicher, dass die Pumpe ordnungsgemäß geerdet ist.
- The single-phase motor includes integrated thermal protection. Do not bypass this safety feature.
5.4. Die Pumpe vorbereiten
Before the first start-up, the pump body must be completely filled with the liquid to be pumped. Open the priming plug (if available) or slowly fill the suction line and pump casing until all air is expelled. Close the plug securely.
6. Bedienung
6.1. Erstinbetriebnahme
- Stellen Sie sicher, dass die Pumpe ordnungsgemäß entlüftet ist (siehe Abschnitt 5.4).
- Open any isolation valves on the suction and discharge lines.
- Schalten Sie die Stromversorgung der Pumpe ein.
- Monitor the pump for unusual noises or vibrations. If any occur, switch off immediately and investigate.
- Check for leaks at connections.
6.2. Normalbetrieb
- The pump is designed for continuous operation within its specified performance range.
- Avoid running the pump against a closed discharge valve for extended periods, as this can lead to overheating.
- Regularly check the pressure gauges (if installed) to ensure the pump is operating within expected parameters.
6.3. Shut-down
- Switch off the power supply to the pump.
- Close isolation valves if the system is to be drained or for maintenance.
7. Wartung
Regular maintenance ensures optimal performance and extends the pump's lifespan. Always disconnect power before performing any maintenance.
7.1. Routine Checks (Weekly/Monthly)
- Inspect for any visible leaks around the pump and piping connections.
- Achten Sie auf ungewöhnliche Geräusche oder Vibrationen.
- Check the motor temperature; it should not be excessively hot to the touch.
- Ensure the ventilation openings are clear of debris.
7.2. Jährliche Wartung
- Inspect the mechanical seal for wear or leaks. Replace if necessary (requires professional service).
- Check the impeller for any signs of corrosion or damage.
- Clean any strainers or filters in the suction line.
- Verify electrical connections are secure and free from corrosion.
7.3. Winterfestmachung (falls zutreffend)
If the pump is installed in an area subject to freezing temperatures and will not be used, it must be drained completely to prevent damage from ice expansion. Disconnect power, open drain plugs, and remove any remaining water from the pump casing and piping.
8. Fehlerbehebung
This section provides solutions to common problems. For complex issues, contact a qualified technician.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Pumpe startet nicht | Keine Stromversorgung Thermische Überlastung ausgelöst Motorfehler | Überprüfen Sie den Stromanschluss und den Leitungsschutzschalter. Allow motor to cool, check for cause of overload Wenden Sie sich an einen qualifizierten Techniker. |
| Die Pumpe läuft, aber es kommt kein Wasser oder der Wasserdurchfluss ist sehr gering. | Pumpe nicht vorgefüllt Luftleck in der Saugleitung Suction line blocked Laufrad beschädigt Auslassventil geschlossen | Die Pumpe erneut ansaugen Check all suction connections for leaks Hindernis beseitigen Inspect/replace impeller (professional service) Open discharge valve |
| Übermäßige Geräusche oder Vibrationen | Cavitation (air in system) Fehlausrichtung Abgenutzte Lager Lose Montage | Ensure proper priming, check for air leaks Check pump and motor alignment Wenden Sie sich an einen qualifizierten Techniker. Befestigungsschrauben anziehen |
| Pumpe leckt | Lose Verbindungen Gleitringdichtung verschlissen Gerissenes casing | Verbindungen festziehen Replace mechanical seal (professional service) Wenden Sie sich an einen qualifizierten Techniker. |
9. Garantie und Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your authorized Pedrollo dealer. Keep your proof of purchase for warranty claims.
For technical support, spare parts, or service, please contact your local Pedrollo distributor or the seller from whom you purchased the pump. Provide the model number (CPM150) and serial number (if available) when seeking assistance.
Pedrollo S.p.A. is committed to continuous product improvement. Specifications are subject to change without notice.