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25VQ Series Vane Pump, 21 Ring Size, 7/8 Straight Keyed Shaft, Outlet in-Line with Outlet, CCW Rotation

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Description & Features

Rated for continuous duty at up to 3000 PSI and 2500 RPM, the 25VQ Series Single Vane Pump is well-suited for demanding industrial applications including metal cutting, plastic injection molding, dump truck, and wheel loader hydraulic circuits. This unit features a 21 ring size, 7/8 straight keyed shaft, and counterclockwise rotation, with the inlet port in-line with the outlet for straightforward circuit integration.

Built on the Eaton Vickers 25VQ platform, this pump delivers a rated flow of 31.5 GPM at a displacement of 4.12 in³/rev. Mounting follows a 2-bolt SAE B flange pattern, with SAE 4-bolt flange ports sized at 1-1/2" inlet and 1" outlet. Designed for high-pressure, high-speed service, the VQ Series is known for consistent volumetric efficiency and extended service life across a range of industrial fluid power applications.

SKU: 416457-7

Supplier Part Number (MPN): 416457-7

Specifications

Application
Oil and Gas, Metal Cutting, Dump Truck, Wheel Loader, Plastic Injection Molding
Displacement
4.12
Displacement
4.12
Brand
DANFOSS POWER SOLUTIONS II LLC (VICKERS)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Features
Longer operating life|Oustanding volumetric efficiency|Built for high-pressure, high-speed applications
Maximum Pressure
3000
Maximum Pressure
3000
Port Location
in-Line with Outlet
Rated Flow
31.50
Rated Flow
31.5
Ring Size
21
Ring Size
21
Rotation
CCW
Seal Material
None
Series
25VQ
Shaft
7/8 Straight Keyed
Shaft
7/8 Straight Keyed
Special Features
None
Speed Rating
2500 RPM
Speed Rating
2500 RPM
Supplier Part Number
416457-7
Product Weight
32.00 lbs

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Product Questions & Answers (3)

Question by: Todd B on Mar 10, 2026, 6:35 AM
Will this fit where a 25VQ21A-1D20 is now?
Answer by: Customer Support on Mar 11, 2026, 11:44 AM
With its 2-bolt SAE B mounting flange and SAE 4-bolt flange ports (1-1/2" inlet, 1" outlet), this 25VQ series vane pump should be a direct mechanical replacement, assuming your existing system also uses a 7/8 straight keyed shaft and CCW rotation.
Question by: Danny J on Jul 13, 2025, 10:38 AM
i got a setup that needs counterclockwise rotation. is this pump built for that, or am i gonna be fighting it
Answer by: Customer Support on Jul 14, 2025, 3:12 PM
Rotation is specified as CCW on this 25VQ series single vane pump, so it matches a counterclockwise rotation requirement.
Question by: Lynn M on Sep 14, 2025, 7:53 AM
runs counterclockwise, right? just want to make sure before i order cause last pump we put in was wrong rotation and it was a whole mess
Answer by: Customer Support on Sep 16, 2025, 7:29 AM
Yes, CCW rotation on this one. The 25VQ21A-1C20L is spec'd for counterclockwise shaft rotation, so if your setup calls for that, you're good to go. Worth double-checking your drive coupling orientation before install just to save yourself the headache.