1. Types of Agricultural Pumps
Clean Water Pumps
For irrigation and water supply.
GTFI: SP series, 2-8 inch
High-Pressure Pumps
For high-rise irrigation and long-distance delivery.
GTFI: SHP series, up to 85m head
Sewage Pumps
For dirty water, drainage, and flood control.
GTFI: STP series, 2-4 inch
Chemical Pumps
For fertilizers, pesticides, and corrosive liquids.
GTFI: SP-DC series
2. How to Calculate Flow Rate and Head
- Flow Rate (m³/h): The volume of water you need per hour. Calculate based on your irrigation area and crop requirements.
- Total Head (m): The vertical distance water must be lifted plus friction losses. Includes suction lift + discharge height + friction loss.
Example: To irrigate 1 hectare of crops requiring 50mm of water per week, you need approximately 500m³/week. A pump with 3-5m³/h flow rate is suitable.
3. Gasoline vs Diesel Pump Engines
- Gasoline: Lighter, quieter, lower upfront cost. Good for small farms and occasional use.
- Diesel: More fuel-efficient, longer lifespan, higher torque. Better for large farms and daily use.
4. Self-Priming vs Non-Self-Priming
- Self-Priming: Can pull water from a source below the pump level. Ideal for ponds, rivers, or wells.
- Non-Self-Priming: Requires the pump to be filled with water before starting. Typically used where the water source is above the pump.
Practical Selection Checklist
Pump and valve selection should start with the fluid and the required flow or pressure conditions. Materials, seals, temperature, solids content, corrosion, and operating cycle can be just as important as nominal size.
What to Confirm Before Ordering
- Define required flow rate, pressure or head, suction conditions, and the operating range rather than one single nominal point.
- Identify the fluid, temperature, viscosity, solids content, corrosiveness, and whether the service is clean, abrasive, or sanitary.
- For valves, specify the control or isolation duty, pressure class, connection standard, body material, seat/seal material, and actuation.
- Check motor power, efficiency, NPSH or suction conditions, installation orientation, and maintenance access for pumps.
- Confirm local pipe standards, replacement parts, seals, and compatibility with the existing system before purchase.
For a quotation request: For quotation requests, provide fluid type, flow, head/pressure, temperature, pipe size, material preference, connection standard, and quantity. A simple system diagram can remove significant ambiguity.
Need help matching equipment to a specific application? Provide the operating conditions, required quantity, destination, and key technical requirements when requesting a quotation.
❓ Frequently Asked Questions
A: Most GTFI pumps have a maximum suction lift of 8m.
A: Yes, most GTFI agricultural pumps are self-priming.
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