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| Manufacturer | Fluidyne Fluid Power |
|---|---|
| Pumps Max Pressure | 2,500 PSI |
| Pumps Rated Speed | 1,200 RPM |
| Pumps Max Speed | 4,000 RPM |
| Pumps Displacement | 19.5 cm³/r (1.19 in³/r) |
| Pumps Drive Shaft | 3/4" Straight Shaft with Key |
| Pumps Rotation | Right-Hand (Clockwise) |
| Pumps Ports In | G1" BSPP Straight Thread |
| Pumps Ports Out | G1/2" BSPP Straight Thread |
| Pump Mounting Flange | 2-Bolt Flange (SAE "A" size) |
| Shipping weight | 37 lb |
| Package size | 10 × 10 × 10 in |
Compatibility & Applications
Direct Replacement Information
This Fluidyne unit serves as a direct replacement for Vickers WF825931 in systems requiring 19.5 cm³/r (1.19 in³/r) displacement and is part of our extensive vane pumps portfolio, operating at pressures up to 2500 PSI, and running at speeds up to 1200 RPM. It is engineered for 100% interchangeability and fits seamlessly into existing V2020 series applications..
- Mounting Pattern: SAE ‘A’ 2-bolt
- Inlet Port: Systems utilizing G1″ BSPP
- Outlet Port: G1/2″ BSPP
Common Applications
Commonly used in marine applications, stationary power units, and test stands, these pumps are a key part of our hydraulic pumps selection for industrial and mobile equipment.
- marine applications
- stationary power units
- test stands
Important: Verify pump model WF825931 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.
Product Selection Guide
These five FluiDyne V2020 double vane pump models primarily differ in their total flow rates, pump section flows, port orientations, shaft type, rotation direction, and maximum speed. All models offer direct Vickers replacement pumps interchangeability, SAE mounting, and support up to 2500 PSI, making them suitable for a wide range of hydraulic system replacements or upgrades. For other large displacement options, see the V201P13P3A11R – FluiDyne V20 Pump.
?? Important: The specifications shown are for reference and comparison purposes. Always verify specifications with the official manufacturer documentation or contact our technical team at (800) 823-4937 before ordering to ensure compatibility with your application. We cannot accept returns due to specification mismatches.
| Model Number | Flow Rate | Max Pressure | Displacement | Mounting |
|---|---|---|---|---|
| WF825931 (Current) | 9 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825939 | 10 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825975 | 10 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825063 | 10 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825884 | 10 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
Key Differences
Total Flow Rate
Difference: WF825931 delivers 14.0 GPM (9 GPM front, 5 GPM rear), while WF825939 provides 18.0 GPM (10 GPM front, 8 GPM rear). WF825975, WF825063, and WF825884 each deliver 10.0 GPM (10 GPM front, 0 GPM rear).
Selection Guide: Select WF825931 or WF825939 for applications needing two separate flows (Hi-Lo circuits) or higher combined output. Choose WF825975, WF825063, or WF825884 when only a single output is required or when space constraints limit your configuration.
Maximum Speed
Difference: WF825939 supports up to 2500 RPM, offering higher speed capability compared to the other models, which are limited to 1800 RPM.
Selection Guide: Choose WF825939 if your system requires a higher pump speed—compare similar specs with the V201P5P18C11R – FluiDyne V20 Pump., improving response time or supporting faster cycling equipment.
Port Orientation
Difference: WF825931: Front outlet 180°, rear outlet 90° CW; WF825939: both outlets inline with inlet (0°); WF825975 and WF825063: both outlets opposite inlet (180°); WF825884: both outlets inline with inlet (0°).
Selection Guide: Select port orientation based on your plumbing layout—inline ports simplify straight runs, while 90° or 180° options may fit tighter or uniquely arranged spaces.
Shaft Type
Difference: WF825931 uses a straight keyed shaft; the other four use a 13-tooth splined shaft.
Selection Guide: Choose a splined shaft (WF825939, WF825975, WF825063, WF825884) for high-torque, shock-load environments. The straight keyed shaft (WF825931) is suitable for standard coupling.
Rotation Direction
Difference: WF825931 and WF825063 are right-hand (clockwise); the others are left-hand (counter-clockwise).
Selection Guide: Match rotation to your drive system—right-hand for standard engine-driven applications, left-hand for reverse setups.
Quick Selection Guide
If you need: Two independent flows for Hi-Lo circuits or dual-function systems
Choose: WF825931 (9 GPM + 5 GPM) or WF825939 (10 GPM + 8 GPM)
Because: These models provide two outputs, making them ideal for multi-function hydraulic circuits.
If you need: Highest total flow and maximum speed capability
Choose: WF825939
Because: Delivers 18 GPM and supports up to 2500 RPM, suitable for high-demand or fast-cycling equipment.
If you need: Single output with straightforward plumbing
Choose: WF825975, WF825063, or WF825884
Because: Each delivers 10 GPM from the front section, with different port orientations and rotation directions to fit your system.
If you need: A pump with a straight keyed shaft
Choose: WF825931
Because: This model uses a straight keyed shaft for standard couplings.
If you need: A pump with splined shaft for high-torque or non-standard couplings
Choose: WF825939, WF825975, WF825063, or WF825884
Because: Splined shafts handle higher torque and are less prone to wear under shock loads. For more demanding applications, consider pumps with integral valves for advanced circuit needs.
Compatibility: All models are 100% interchangeable with Vickers V2020 series. They conform to SAE J744 mounting standards (SAE ‘B’ 4-bolt flange) and use G1″/G1/2″ BSPP ports for seamless system upgrades, just like our other vane pumps offerings.
For model selection, sizing, or troubleshooting, hydraulic specialists are available Mon-Fri, 7 AM – 5 PM MST at (800) 823-4937. For more on pump families, visit our hydraulic pumps overview. Volume pricing is available starting at 4 units, and all pumps include a 12-month manufacturer warranty. Same-day shipping applies to in-stock items.
Purchasing Information
Availability & Delivery
Most hydraulic pumps ship within 1-2 business days. Made-to-order items typically require 5-7 business days.
For current availability on WF825931, call (800) 823-4937.
Warranty & Protection
- 12-month warranty covers manufacturing defects
- 30-day return window for unopened units
- Free technical verification before ordering
- Each pump pressure tested before shipment
Ordering Options
Order online for immediate processing. Phone orders welcome at (800) 823-4937.
Net 30 terms available for approved accounts.
Volume pricing available on orders of 4 or more units.
Support & Documentation
- Installation guide included with every shipment
- Technical drawings and specifications available for all vane pumps
- Cross-reference guides for common brands
- Phone support: Monday-Friday, 7 AM – 5 PM MST
Questions? Call our specialists: (800) 823-4937
Fluidyne V2020 WF825931 Vane Pump | Replacement for Vickers/Eaton V2020-V20201F9S5S1AD30R 2.0 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft
$822.80
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Expected delivery Oct 19 - Oct 23
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