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35VQ Series Vane Pump, 21 Ring Size, 1-1/4 straight Keyed Shaft, Outlet 90 deg CW from Outlet, CW Rotation

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Displacement
4.04
Displacement
4.04
Brand
DANFOSS POWER SOLUTIONS II LLC (VICKERS)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Maximum Pressure
3000
Maximum Pressure
3000
Port Location
90 deg CW from Outlet
Rated Flow
31.50
Rated Flow
31.5
Ring Size
21
Ring Size
21
Rotation
CW
Shaft
1-1/4 straight Keyed
Shaft
1-1/4 Straight Keyed
Speed Rating
2500 RPM
Speed Rating
2500 RPM
Supplier Part Number
591391-2
Product Weight
50.00 lbs
Product Questions & Answers 1

Product Questions & Answers

pump's rated at 2500 RPM max -- does that mean it'll hold up runnin closer to that top end, or is it better to keep it pulled back some?
Question by: Daryl M on Jun 20, 2025, 11:58 AM
At 2500 RPM you're at the rated ceiling, not a comfortable cruising speed. For continuous duty cycles, keeping operating speed noticeably below that ceiling reduces wear on the vanes and ring over time. The 3000 PSI max pressure rating gives you headroom on the pressure side, but RPM is where you want to leave yourself some margin if the pump is running most of the shift.
Answer by: Customer Support on Jun 22, 2025, 8:33 AM

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