When you're outfitting a hydraulics pneumatics system, the pump decision often comes down to a tradeoff between pressure and flow. Dynamic Fluid Components offers two GP-F20 series gear pumps that sit on opposite sides of that tradeoff. Both are new, US-made units with the same aluminum center section and cast iron end plates, so construction quality is a shared baseline. The real choice is whether your circuit needs higher working pressure or larger displacement per revolution.
Quick Verdict
The GP-F20-06-S9-A is the right pick when your system's demands sit at the higher end of the spectrum; the GP-F20-16-P-A is the right pick when you need more fluid moved per turn and can work within a more moderate range.
Comparison Snapshot
| Product | Listed Price | Max Pressure | Displacement | Drive Shaft | Price Bar |
|---|---|---|---|---|---|
| GP-F20-06-S9-A | $342.18 | 3650 psi | 0.36 in³/rev | SAE 9-tooth spline | |
| GP-F20-16-P-A | $204.09 | 2900 psi | 0.97 in³/rev | 5/8" straight |
Where Each Wins
- GP-F20-06-S9-A wins for high-pressure duty with its higher maximum pressure rating.
- GP-F20-16-P-A wins for high-flow duty with its lower price.
Product Notes
Dynamic Fluid Components GP-F20-06-S9-A
This pump is designed for systems where pressure is the limiting factor. Its maximum pressure rating is the key difference, and the SAE 9-tooth spline drive shaft is a specific coupling option. The tradeoff is the displacement size: it moves less fluid per revolution than the alternative, so high-flow circuits will need more revolutions or a larger pump. If your application demands the higher pressure ceiling, this is the model to select. The construction matches the rest of the GP-F20 series-aluminum center section and cast iron end plates-so it shares the same base design across the line.
Dynamic Fluid Components GP-F20-16-P-A
The GP-F20-16-P-A is for circuits that need volume. It offers a larger displacement per revolution, which suits systems that move more oil per turn. Its maximum pressure rating is lower than the other model, so it's best for applications that stay within a moderate pressure range. The straight 5/8-inch drive shaft is a common coupling style. Choose it when flow is your priority and the pressure demand is within its limits. Both pumps spin counter-clockwise and share the same SAE-12 inlet and SAE-10 outlet ports.
Final Choice by Use Case
- For a high-pressure hydraulic system, the GP-F20-06-S9-A is the right fit.
- For a high-flow system with a lower pressure ceiling, the GP-F20-16-P-A gives you the performance you need at a lower price.
