Home » Hydraulics Shop » Hydraulic Pumps » Hydraulic Vane Pumps » Single Stage Vane Pumps » Fluidyne V20 WF820422 Vane Pump | Replacement for Vickers/Eaton V201P9P1B11R 3.0 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Fluidyne V20 WF820422 Vane Pump | Replacement for Vickers/Eaton V201P9P1B11R 3.0 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft

Fluidyne V20 WF820422 Vane Pump | Replacement for Vickers/Eaton V201P9P1B11R 3.0 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft - Image 2

Specifications

Weight	19 lbs
Pump Mounting Flange	2-Bolt Flange (SAE "A" size)
Manufacturer	Fluidyne Fluid Power
Pumps Drive Shaft	3/4" Straight Shaft with Key (1.75" extension)
Pumps Rotation	Right-Hand (Clockwise)
Pumps Max Pressure	2500 psi
Pumps Rated Speed	1200 RPM
Pumps Max Speed	3000 RPM
Pumps Displacement	29.7 cm³/r (1.81 in³/r)
Pumps Ports In	G1" BSPP Straight Thread
Pumps Ports Out	G1/2" BSPP Straight Thread

Compatibility & Applications

Direct Replacement Information

This Fluidyne unit serves as a direct replacement for Vickers WF820422 in systems requiring 29.7 cm³/r (1.81 in³/r) displacement and up to 2500 PSI maximum pressure. Built to V20 series specifications, it ensures 100% interchangeability for seamless integration..

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—see our full vane pump lineup for additional use cases..

marine applications
stationary power units
test stands

Important: Verify pump model WF820422 matches your existing Vickers unit before ordering. For technical assistance, contact (800) 823-4937.

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 WF820422, 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
Cross-reference guides for common brands
Phone support: Monday-Friday, 7 AM – 5 PM MST

Questions? Call our specialists: (800) 823-4937

Product Selection Guide

These FluiDyne V20 Series vane pump models are all direct Vickers replacements, sharing SAE ‘A’ 2-bolt flange mounting, similar porting, and high reliability. Key differences are found in their flow rates, displacement, shaft and port configurations, rotation direction, and presence of flow control features. Selecting the right model depends on your required flow/pressure, shaft compatibility, and system layout.

?? 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
WF820422 (Current)	9.4 GPM	2500 PSI	29.7 cm³/r (1.81 in³/r)	2-Bolt Flange (SAE “A” size)
WF820420	11.5 GPM	2500 PSI	36.3 cm³/r (2.22 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201811	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201212	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)
WF8201138	13.5 GPM	2500 PSI	42.6 cm³/r (2.60 in³/r)	2-Bolt Flange (SAE “A” size)

Key Differences

Flow Rate & Displacement

Difference: WF820422 delivers 9.4 GPM (1.81 in³/rev), WF820420 provides 11.5 GPM (2.22 in³/rev), WF8201811, WF8201212, and WF8201138 each supply 13.5 GPM (2.60 in³/rev) at 1200 RPM.

Selection Guide: Select lower flow (WF820422) for smaller circuits or precise control, mid-range () for moderate needs, or higher flow (, , WF8201138) for larger actuators or higher speed requirements.

Shaft Configuration

Difference: WF820422 uses a 3/4″ straight keyed shaft; has an 11-tooth splined shaft (1.25″ extension); features a special shaft (Code 39); and WF8201138 use a 7/8″ threaded shaft with Woodruff key.

Selection Guide: Match the shaft to your coupling or drive: use straight key for general applications, splined for high torque, or threaded for specific drive requirements.

Port Position

Difference: WF820422: 90° counter-clockwise from inlet; : opposite inlet (180°); : inline with inlet (0°); : opposite inlet (180°); WF8201138: inline with inlet (0°).

Selection Guide: Choose port positions that best fit your system plumbing—inline for straight-through lines, 90° or 180° for routing around obstructions.

Rotation Direction

Difference: WF820422, , , WF8201138: right-hand (clockwise); : left-hand (counter-clockwise).

Selection Guide: Ensure the pump rotation matches your drive motor—select left-hand for reverse-drive setups.

Flow Control & Relief

Difference: uniquely features a flow control cover (8 GPM) and a 2000 PSI relief valve.

Selection Guide: Use if your system needs onboard flow adjustment and built-in pressure relief.

Maximum Pressure & Speed

Difference: WF820422, : 2500 PSI max, up to 2500–2800 RPM; , , WF8201138: 2200 PSI max, 2400 RPM.

Selection Guide: For higher pressure or speed, select WF820422 or ; for higher flows at moderate pressure, choose among the 13.5 GPM models.

Quick Selection Guide

If you need: Lower flow at highest pressure (compact systems, precise control)

Choose: WF820422

Because: Delivers 9.4 GPM at up to 2500 PSI and 2800 RPM with a simple straight keyed shaft.

If you need: Built-in flow control and relief protection

Choose:

Because: Includes 8 GPM flow control and a 2000 PSI relief valve; ideal for circuits needing adjustable flow or overload protection.

If you need: Highest flow output (large cylinder or motor applications)

Choose: , , or WF8201138

Because: Each offers 13.5 GPM at 1200 RPM with 2.60 in³/rev displacement, suitable for higher demand systems.

If you need: Specific shaft or port orientation for installation constraints

Choose: (special shaft, inline ports), (threaded shaft, 180° ports), or WF8201138 (threaded shaft, inline ports)

Because: These options provide flexibility for custom mounting or shaft requirements.

If you need: Left-hand (counter-clockwise) rotation for reverse-drive systems

Choose:

Because: This is the only model in the group with left-hand rotation.

Compatibility: All models are 100% interchangeable with Vickers V20 series pumps, use SAE J744 ‘A’ 2-bolt mounting, and share G1″/G1/2″ BSPP straight thread ports for easy system replacement or upgrade.

For help selecting the best model for your application, explore our hydraulic pumps range or call Northern Hydraulics’ hydraulic specialists at (800) 823-4937, Mon-Fri, 7 AM – 5 PM MST. Volume pricing starts at 4 units, and every pump includes a 12-month manufacturer warranty. Same-day shipping is available on in-stock items.

SKU: WF820422

Fluidyne V20 WF820422 Vane Pump | Replacement for Vickers/Eaton V201P9P1B11R 3.0 GPM | 2500 PSI | SAE ‘A’ 2-Bolt | 3/4″ Keyed Shaft

Name: Fluidyne V20 WF820422 Vane Pump | Replacement for Vickers/Eaton V201P9P1B11R 3.0 GPM | 2500 PSI | SAE 'A' 2-Bolt | 3/4" Keyed Shaft
Brand: Northern Hydraulics Inc.
SKU: WF820422
Price: 299.2 USD
Availability: InStock