Overview

This document provides detailed technical specifications and performance data for various types of trailer-mounted pumps, including single-stage, multistage, and self-priming pumps designed for different applications such as slurry pumping, irrigation, and dirty water handling.

1. Pump Types and Configurations

• Single-stage trailer-mounted pumps: These pumps are characterized by their impeller design and port sizes, suitable for general water and slurry pumping.
• Multistage trailer-mounted pumps: Designed for higher pressure applications, these pumps have multiple impellers and larger port sizes.
• Self-priming pumps for dirty water: Equipped to handle solids and debris, these pumps include features like triturators and automatic priming systems.

2. Key Technical Specifications

The document lists parameters for each pump series and model, including:

• PTO (Power Take-Off) speed (R.P.M.): Typically ranging from 1600 to 4000 RPM depending on the pump type.
• Pump speed ratio: Ratio of pump RPM to tractor PTO RPM, varying between approximately 1:2.6 to 1:7.9.
• Port sizes (DNa and DNm): Inlet and outlet diameters ranging from 50 mm to 150 mm or more.
• Delivery (Flow rate): Measured in liters per minute (l/1'), with values from around 200 l/min up to over 3300 l/min depending on the pump.
• Head (Prevalence): The height the pump can raise water, ranging from about 7 meters to over 60 meters.
• Power requirements: Tractor horsepower needed to operate the pump, ranging from 15 HP to over 150 HP.
• Impeller type: Open blade impellers are common, with some models featuring triturators for solids handling.

3. Performance Data

Performance tables provide detailed flow rates and head values at various PTO speeds for each pump model. Key observations include:

• Higher PTO speeds generally increase flow rate but may reduce head.
• Multistage pumps achieve higher heads suitable for high-pressure irrigation.
• Self-priming pumps include specifications for solid particle handling, with maximum solid sizes indicated (e.g., 6 mm to 14 mm).

4. Construction and Materials

The pumps are constructed with durable materials suitable for demanding applications:

• Pump bodies, impellers, and gearboxes made from spheroidal graphite cast iron (GS400).
• Hardened steel gears and chrome-plated shafts for wear resistance.
• Mechanical seals lubricated with tungsten carbide (widia/widia).
• Open blade impellers designed for slurry and dirty water.
• Optional triturators with steel blades for chopping solids.

5. Applications

The pumps are intended for:

• Slurry pumping and manure handling.
• Emptying septic tanks and water collection basins.
• Surface irrigation including high-pressure systems with self-propelled machines.
• Handling of dirty water with solids.

6. Accessories and Mounting

Various accessories are available, including:

• 2-wheel trolleys for mobility.
• 3-point tractor mounting bases.
• Gearboxes with oil bath lubrication suitable for tractors from 60 HP to 150 HP.

7. Summary of Critical Parameters

8. Recommendations and Best Practices

• Select pump type based on required flow, head, and solids handling capability.
• Match PTO speed and tractor power to pump specifications to ensure optimal performance.
• Use appropriate accessories for mounting and mobility according to operational needs.
• Regular maintenance of mechanical seals and gearboxes is critical for longevity.

Conclusion

This document serves as a comprehensive technical reference for selecting and operating trailer-mounted pumps across a range of agricultural and industrial applications. It emphasizes matching pump characteristics with tractor capabilities and application requirements to achieve efficient and reliable pumping performance.