Gear Pump - AFP Series
AFP Series Fuel Pressurizing Internal Gear Pump is a high-precision positive displacement internal gear pump designed for fuel pressurizing, injection, lubrication, and oil transfer applications. It offers reliable performance, self-priming capability, high suction lift, and efficient handling of low to medium viscosity liquids.
- Pump Type
- Internal Gear Pump
- Pump Series
- AFP Series
- Operating Principle
- Positive Displacement
- Maximum Pressure
- 35 kg/cm²
- Manufacturer since 1984
- ISO 14001 & 45001
- Application-led selection
Overview
About the Gear Pump - AFP Series
The AFP Series Internal Gear Pump by Sando Rotary Equipments is engineered for demanding industrial fuel and lubrication applications. Manufactured from graded cast iron construction with precision internal gears, the pump ensures long service life, smooth operation, and accurate flow delivery.
The pump is flange-mounted and equipped with an inbuilt pressure relief valve along with an external bypass arrangement for enhanced operational safety and pressure control. Mechanical seal arrangement minimizes leakage at high pressure conditions, making it suitable for continuous-duty industrial environments.
AFP Series pumps are self-priming and capable of generating high vacuum suction, providing superior suction lift compared to conventional external gear pumps. The pump can handle liquids up to 500 cSt viscosity and temperatures up to 200°C. Rotation direction can be configured clockwise or anti-clockwise as required.
These pumps are ideal for clear and non-corrosive liquids such as LDO, FO, and LSHS, and are widely used in boiler systems, burners, lubrication systems, diesel locomotive booster systems, filtration systems, and machine tools.
Engineering Data
Technical Specifications
| Pump Type | Internal Gear Pump |
|---|---|
| Pump Series | AFP Series |
| Operating Principle | Positive Displacement |
| Maximum Pressure | 35 kg/cm² |
| Recommended | Continuous Pressure 30 kg/cm² |
| Speed | 1440 RPM (AFP-050 can operate at 2900 RPM) |
| Viscosity Handling | Up to 500 cSt |
| Maximum TemperatureL | Up to 200°C |
| Suction Capability | Vacuum up to 600/650 mm Hg |
| Mounting Type | Flange Mounted |
| Sealing Type | Mechanical Seal |
| Rotation | Clockwise / Anti-clockwise |
| Liquid Type | Clear, Non-corrosive Liquids |
Construction
Materials of Construction
Pump Body
CI Grade 25
Eccentric Cover
CI Grade 25
Mechanical Seal Housing
MS
Shafted Rotor
EN-31 H&G
Idler Gear
EN-31 H&G
Wear Plate
Phosphor Bronze
Use Cases
Industry Applications
- Fuel pressurizing systems
- Fuel injection systems
- Boilers and burners
- Hydraulic systems
- Diesel locomotive booster pumps
- Force-feed lubrication systems
- Oil filtration systems
- Oil circulation and pumping
- Heating systems
- Machine tool lubrication units
- Suitable Fluids:
- LDO (Light Diesel Oil)
- FO (Furnace Oil)
- LSHS
- Clear and non-corrosive liquids
Selection Guide
Positive Displacement vs. Centrifugal Pumps
-
1
Positive displacement pumps suit controlled flow, higher viscosity, and pressure-sensitive transfer.
-
2
Centrifugal pumps suit continuous movement of clean, low-viscosity liquids at stable duty points.
-
3
Final selection should be based on duty point, fluid behavior, installation conditions, and maintenance goals.
For selection, share flow rate, discharge pressure or head, viscosity, temperature, solids content and installation conditions — our engineers will recommend the right gear configuration.
Questions
Frequently Asked Questions
What is Gear Pump - AFP Series used for?
Gear Pump - AFP Series is used for industrial liquid handling where the selected gear configuration matches flow, pressure, material compatibility, and site duty requirements.
How do I select the right gear model?
Share the fluid name, flow rate, head or pressure, viscosity, temperature, solids content, installation details, and operating hours so the team can recommend a suitable model.
Can Sando support industrial pump manufacturer?
Yes. Sando Rotary can review the duty conditions and suggest suitable products, materials, elastomers, and accessories for industrial pump manufacturer.
Do you provide technical specifications and application guidance?
Yes. Specifications, catalogs, material guidance, performance details, and application support can be shared for procurement and engineering review.
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