(800) 823-4937
sales@northernhydraulics.net
| Weight | 37.0 lbs |
|---|---|
| Dimensions | 10 × 10 × 10 in |
| Pump Mounting Flange | 2-Bolt Flange (SAE "A" size) |
| Manufacturer | Fluidyne Fluid Power |
| Pumps Drive Shaft | 3/4" Straight Shaft with Key |
| Pumps Rotation | Left-Hand (Counter-Clockwise) |
| Pumps Max Pressure | 2500 psi |
| Pumps Rated Speed | 1200 RPM |
| Pumps Max Speed | 4000 RPM |
| Pumps Displacement | 19.5 cm³/r (1.19 in³/r) |
| Pumps Ports In | G1" BSPP Straight Thread |
| Pumps Ports Out | G1/2" BSPP Straight Thread |
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 WF825981, 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, or explore our full selection of vane pumps. 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, with extensive cross-references for Vickers replacement pumps
- Cross-reference guides for common brands
- Phone support: Monday-Friday, 7 AM – 5 PM MST
Questions? Call our specialists: (800) 823-4937
Compatibility & Applications
Direct Replacement Information
This Fluidyne unit serves as a direct replacement for Vickers WF825981, part of our comprehensive single stage vane pumps lineup, in hydraulic systems demanding 19.5 cm³/r (1.19 in³/r) displacement and 2500 PSI maximum pressure. It is designed for seamless interchangeability, ensuring compatibility with existing Vickers installations..
- Mounting Pattern: SAE ‘A’ 2-bolt
- Inlet Port: G1″ BSPP
- Outlet Port: G1/2″ BSPP
Common Applications
Commonly used in marine applications, stationary power units, test stands. For additional real-world examples, see our V20201F10S10S11AA30L – FluiDyne V2020 case studies.
- marine applications
- stationary power units
- test stands
Important: Verify pump model WF825981 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.
Product Selection Guide
These Fluidyne V2020 double vane pump models differ primarily in flow rates, maximum speeds, mounting types, port orientations, and cover options (standard vs flow control). For systems requiring integrated solutions, browse our pumps with integral valves. All offer direct Vickers interchangeability, 2500 PSI max pressure, and use standard SAE mounting and port threads, making them suitable for a wide range of hydraulic systems.
?? Important: The specifications shown are for reference and comparison purposes. Always verify specifications with the official manufacturer documentation, check out compatible FluiDyne V20 Pump applications options, 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 |
|---|---|---|---|---|
| WF825981 (Current) | 6 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825983 | 8 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825980 | 13 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825986 | 11 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
| WF825987 | 13 | 2500 PSI | 19.5 cm³/r (1.19 in³/r) | 2-Bolt Flange (SAE “A” size) |
Key Differences
Flow Rate & Total Displacement
Difference: WF825981 and WF825980 offer 12.0 and 14.0 GPM respectively, while WF825983 delivers 16.0 GPM, and WF825986 peaks at 20.0 GPM. Displacements per revolution and per section vary accordingly.
Selection Guide: Select higher-flow models (WF825983, WF825986) for systems with larger actuators or demanding cycle times; lower-flow models (WF825981, WF825980) for precise, low-flow applications.
Maximum Speed
Difference: WF825981 and WF825983 can run up to 3400 and 2800 RPM respectively, while WF825980 and WF825987 are limited to 1800 RPM due to rear pump constraints.
Selection Guide: Choose WF825981 or WF825983 if your drive source operates at higher RPMs. For broader application needs, review all hydraulic pumps available. For slower drives or applications where speed is limited, WF825980 or WF825987 are appropriate.
Mounting and Port Orientation
Difference: WF825981 and WF825986 use SAE ‘B’ 4-bolt flanges; others use SAE ‘A’ 2-bolt. Port orientations vary: WF825981 has both outlets opposite the inlet (180°), WF825983 is inline (0°), WF825986 is 90° CW, and WF825980 is 90° CCW.
Selection Guide: Match mounting flange and port orientation to your installation space—use inline ports for simple plumbing, 90° for compact spaces, and select the correct flange type for your motor or adapter.
Pump Section Configuration
Difference: WF825980 and WF825987 have asymmetrical sections (13 GPM + 1 GPM), while others have balanced flows (e.g., WF825981: 6+6 GPM).
Selection Guide: Choose asymmetrical pumps for Hi-Lo circuits or when two vastly different flows are required from a single unit. For detailed performance specs, see the V201P13P3A11R – FluiDyne V20 Pump.
Flow Control Cover
Difference: WF825986 and WF825987 include a flow control cover; others do not.
Selection Guide: Choose flow control cover models if integrated flow regulation is required in your application.
Rotation
Difference: WF825981 and WF825980 are left-hand (CCW); WF825983 and WF825986 are right-hand (CW).
Selection Guide: Select rotation to match your drive rotation—incorrect rotation will damage the pump.
Quick Selection Guide
If you need: Balanced dual flows at moderate speed with space for a 4-bolt SAE ‘B’ mount
Choose: WF825981 (6+6 GPM, 3400 RPM, 4-bolt SAE ‘B’)
Because: Offers equal output from both pump sections and high maximum RPM.
If you need: Higher total flow with a foot bracket mount and inline ports
Choose: WF825983 (8+8 GPM, 2800 RPM, foot bracket, inline ports)
Because: Delivers equal, higher flow and is ideal for installations requiring inline plumbing.
If you need: Large flow to one circuit and minimal flow to another (Hi-Lo system), with compact SAE ‘A’ flange
Choose: WF825980 or WF825987 (13+1 GPM, max 1800 RPM)
Because: Provides a strong primary output and secondary low flow, ideal for rapid approach/slow work circuits.
If you need: Integrated flow control and high total output
Choose: WF825986 (11+9 GPM, 2500 RPM, flow control cover)
Because: Simplifies system design by integrating flow regulation.
Compatibility: All models are 100% interchangeable with Vickers V2020 series, follow SAE J744 mounting standards, and feature G1″/G1/2″ BSPP ports for easy direct replacement. For more on direct compatibility, explore our Vickers replacement pumps selection.
For model selection, cross-referencing, or application troubleshooting, call Northern Hydraulics at (800) 823-4937, Mon-Fri, 7 AM – 5 PM MST. Or, compare all vane pump options for your requirements.
Fluidyne V2020 WF825981 Vane Pump | Replacement for Vickers/Eaton V2020-V20201F6S6S1AA30L 12.0 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft
$822.80
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Expected delivery Oct 14 - Oct 20
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