1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your FORAS Plus Multistage Pump, model P 3-100/5. This pump is designed for pumping clean, uncontaminated liquids without solid particles and chemically non-aggressive liquids. Its robust design and reliable performance make it suitable for water supply in small household systems, pressure systems, irrigation, and transferring liquids.
Manufactured by Pentax Industries S.p.A. in Italy, this pump combines quality engineering with high-grade European components to ensure long service life and safe operation.
2. Safety Information
Read all safety instructions carefully before installation, operation, or maintenance. Failure to follow these instructions may result in personal injury, property damage, or electric shock.
- Electrical Safety: Ensure the pump is connected to a properly grounded electrical supply (230V, 50Hz) with appropriate circuit protection. Disconnect power before any installation or maintenance.
- Installation Environment: Install the pump in enclosed spaces or locations protected from atmospheric influences (rain, direct sunlight, frost).
- Liquid Compatibility: This pump is designed for clean water with a temperature range of -5°C to +35°C. Do not pump flammable, corrosive, or abrasive liquids.
- Pressure: The maximum operating pressure is 8.5 bar. Ensure all connections are secure to prevent leaks.
- Thermal Protection: The motor includes built-in thermal protection. If the pump stops unexpectedly, allow it to cool down before attempting to restart.
- Children and Unauthorized Personnel: Keep children and unauthorized personnel away from the pump during operation.
3. Setup and Installation
Proper installation is crucial for the pump's performance and longevity.
- Mounting: Secure the pump on a stable, level surface to minimize vibration.
- Location: Install the pump in a dry, well-ventilated area, protected from weather conditions and extreme temperatures.
- Pipe Connections:
- Suction Connection (Inlet): Connect a 1-inch G (25 mm) pipe to the suction port. Ensure the suction line is airtight to prevent air ingress, which can cause the pump to lose prime.
- Outlet Opening (Outlet): Connect a 1-inch G (25 mm) pipe to the discharge port.
- Use appropriate sealants and fittings to ensure leak-free connections.
- Electrical Connection:
- Connect the pump to a 230V, 50Hz power supply.
- Ensure the electrical wiring conforms to local regulations and is performed by a qualified electrician.
- The pump motor has a built-in thermal protector.
- Priming the Pump:
Before initial startup, the pump must be primed. Remove the water filler screw and fill the pump body completely with clean water until it overflows. Replace the screw securely.
Image: Angled view of the FORAS Plus Multistage Pump, highlighting the main body and connection points. This image helps identify the pump's physical layout for installation.
4. Operating Instructions
Once installed and primed, the pump is ready for operation.
- Initial Start-up: After priming, switch on the power supply to the pump. The pump should start immediately and begin to draw water.
- Monitoring: Observe the pump during the first few minutes of operation. Check for unusual noises, vibrations, or leaks. If any issues are detected, switch off the pump immediately and consult the troubleshooting section.
- Continuous Operation: The pump is designed for continuous duty.
- Shutting Down: To stop the pump, simply switch off the power supply.
- Applications: This pump is suitable for:
- Water supply in small household systems.
- Pressure systems (e.g., in combination with hydroaccumulators).
- Irrigation of gardens and vegetable plots.
- Transferring clean liquids.
- Heating and air conditioning systems.
- Washing systems.
Image: Front view of the FORAS Plus Multistage Pump, showcasing its stainless steel body and motor. This image provides a clear visual reference of the complete pump unit.
5. Maintenance
Regular maintenance ensures optimal performance and extends the pump's lifespan.
- Regular Inspection: Periodically check for leaks, unusual noises, or excessive vibration. Ensure all connections are tight.
- Cleaning: Keep the pump exterior clean and free from dust and debris to ensure proper motor cooling.
- Winterization (if applicable): If the pump is installed in an area subject to freezing temperatures, drain all water from the pump and piping to prevent damage from ice expansion. Use the drain plug for this purpose.
- Material Durability: The pump body is made of stainless steel AISI 304, the engine holder of aluminum, and the impeller of Noryl, ensuring protection against rust and reliable operation.
6. Troubleshooting
Before contacting technical support, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | No power supply; thermal overload tripped; motor fault. | Check power connection and circuit breaker. Allow motor to cool if thermal protection tripped. Consult a technician if motor fault is suspected. |
| Pump runs but no water flows. | Pump not primed; air leak in suction line; suction lift too high; clogged suction filter. | Re-prime the pump. Check suction line for leaks. Ensure suction lift is within limits. Clean any filters. |
| Low flow or pressure. | Partial air leak; clogged impeller; worn components; discharge valve partially closed. | Check suction line for small leaks. Inspect and clean impeller. Check discharge valve position. |
| Excessive noise or vibration. | Cavitation (air in water); loose mounting; foreign object in pump. | Ensure pump is fully primed and suction line is airtight. Secure mounting bolts. Disconnect power and inspect pump for obstructions. |
7. Specifications
Detailed technical specifications for the FORAS Plus Multistage Pump P 3-100/5.
- Model: P 3-100/5
- Manufacturer: PENTAX INDUSTRIES S.p.A. (Italy)
- Pump Body: Stainless steel AISI 304
- Engine Holder: Aluminium
- Impeller: Noryl
- Drive Shaft: Stainless steel AISI 303
- Sealing: Ceramic - graphite (NBR)
- Motor Type: Bipolar capacitor asynchronous motor with thermal protection
- Power (P1): 1060 W
- Power (P2): 750 W
- Voltage: 230 V
- Frequency: 50 Hz
- Rated Current: 4.8 A
- Maximum Flow Rate: 80 l/min (4.8 m³/h)
- Maximum Delivery Head: 52.2 m
- Operating Pressure: Max 8.5 bar
- Liquid Temperature Range: -5°C to +35°C
- Suction Connection (Inlet): 1 inch G (25 mm)
- Outlet Opening (Outlet): 1 inch G (25 mm)
- Protection Class: IP44
- Insulation Class: F
- Weight: 10.6 kg (24.2 pounds)
- Dimensions (L x W x H): 404 x 178 x 203 mm (15.91 x 7.01 x 7.99 inches)
Image: Close-up of the motor label on the FORAS Plus Multistage Pump, displaying key technical specifications and certifications. This provides a direct reference for electrical and performance data.
8. Warranty and Support
Your FORAS Plus Multistage Pump is a product of Italian engineering and quality, manufactured by Pentax Industries S.p.A.
- Quality Assurance: The pump is manufactured with original European quality and comes with a factory warranty.
- Spare Part Availability: EU spare part availability is guaranteed for 30 years.
- Manufacturer: PENTAX INDUSTRIES S.p.A., Veronelo (Italy).
- For technical assistance or warranty claims, please contact your authorized dealer or the manufacturer directly.
