Farmers rely on sturdy PTO pumps to deliver reliable, even spray patterns for crops, nutrients, and weed control. This guide highlights five high-performance, tractor-ready pumps designed for agricultural spraying. Each entry covers flow rate, pressure, durability, and chemical resistance to help you compare without price distractions and choose a pump that fits your equipment and field tasks.
| Product | Flow (GPM) | Pressure (PSI) | Material | Notes |
|---|---|---|---|---|
| HYPRO 6500C 6-Roller Pump | 21.8 | 300 | Cast Iron | 3/4″ NPT ports; Viton seals |
| HYPRO 7560C 8-Roller Pump | 22.5 | 300 | Cast Iron | 15/16″ solid shaft; Viton seals |
| Delavan 6900C 6 Roller Pump | 19.6 | 150 | Cast Iron | Ultra Rollers; Viton seals; field serviceable |
| Delavan Cast Iron 8-Roller Pump 8900C | 24 | 150 | Cast Iron | High-GPM; 1000 RPM |
| Delavan 4-Roller Pump 4900C | 9.2 | 150 | Cast Iron | 2,600 RPM; solid shaft |
Note: All pumps listed are designed for agricultural spraying and compatible with PTO-driven tractor setups. When selecting, consider your implement width, spray pattern, chemical compatibility, and maintenance capability in the field.
HYPRO 6500C 6-Roller Pump
Features include a high-performance agricultural design delivering 21.8 GPM at up to 300 PSI. Cast iron housing provides durability under demanding field conditions. Viton seals offer chemical resistance to fertilizers and harsh agricultural chemicals. Ports measure 3/4″ NPT, with a solid shaft for reliable operation and long service life.
HYPRO 7560C 8-Roller Pump
This 8-roller model provides up to 22.5 GPM at 300 PSI and uses a heavy-duty cast iron housing. It features a Viton seal system for chemical resistance and a 15/16″ solid shaft for robust torque transmission, accommodating fast application rates while maintaining reliability in tough conditions.
Delavan 6900C 6 Roller Pump
Delavan’s 6900C combines field-serviceable Ultra Rollers with Viton lip seals and heavy-duty sealed bearings. Specifications show a 150 PSI rating with a range of flow depending on operating RPM, supporting agricultural spraying and water-transfer tasks. The cast iron construction emphasizes durability in harsh environments.
Delavan Cast Iron 8-Roller Pump 8900C
The 8900C model delivers a robust 24 GPM at 150 PSI and runs at 1000 RPM. Its 8-roller design provides solid performance with durable cast iron construction, making it suitable for continuous field spraying or high-volume nutrient applications. Consider its higher flow when outfitting large-acreage equipment.
Delavan Cast Iron 4-Roller Pump 4900C
With a 9.2 GPM flow and 150 PSI capacity, the 4900C is a compact choice for smaller sprayers or lighter-duty applications. The 2,600 RPM rating and solid shaft design contribute to dependable performance, especially in moderate-field spraying tasks where space and weight are considerations.
Buying Guide: Key Purchase Considerations
- Flow rate versus field size: Higher GPM speeds coverage on larger plots but may require bigger nozzles and precise pressure management. Match pump capacity to your sprayer rig and typical acre size.
- Pressure range: Pumps rated around 150-300 PSI handle most agricultural sprays, including fertilizer and herbicide mixes. Ensure your spray booms and nozzles are compatible with the pump’s pressure profile.
- Durability and materials: Cast iron housings offer ruggedness for farm environments. Viton seals provide superior chemical resistance for fertilizers and harsh chemicals.
- Maintenance and serviceability: Field-serviceable options (Ultra Rollers, easily replaceable seals) reduce downtime. Check availability of replacement parts from the manufacturer.
- Shaft and drive compatibility: Solid shaft designs and compatible PTO couplers ensure reliable torque transfer and alignment with your tractor’s PTO output.
- System integration: Consider inlet/outlet sizes (commonly 3/4″ NPT) and whether your existing sprayer frame or plumbing requires adapters or hoses.
- Noise and vibration: Heavier-duty pumps may generate more vibration; ensure mounting brackets and isolation are adequate for operator comfort and equipment longevity.
- Maintenance plan: Schedule routine checks for seals, bearings, and rollers to extend life and maintain spray quality across season workloads.
In choosing the right PTO pump, evaluate your typical spraying tasks—crop type, chemical compatibility, and required spray patterns—alongside the field size and available tractor PTO horsepower. The pumps listed here span high-flow models for large-scale operations to more compact units for smaller fields, all designed to integrate with standard PTO-driven sprayer setups.