Vickers | 20VQ11B-151C30R
20VQ11B 151C30R
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The 20VQ11B 151C30R vane pump is part of the VQ Thru-Drive Vane Pumps series manufactured by Vickers for hydraulic automation circuits. It relies on a geometric displacement of 36.4 cm³ per revolution (2.22 in³/rev) to move fluid efficiently. At maximum speed and system pressure the pump delivers 88.5 L/min (23 USgpm) while drawing 35.4 kW (47.5 hp) from the prime mover. In a moderate-pressure duty point of 1200 r/min and 7 bar, the rated flow is 11 USgpm, supporting continuous machine actuation. Shaft rotation is right-hand clockwise, aligning with common engine and motor drives, and the outlet is positioned in line with the inlet as designation C indicates, which simplifies hose routing. The unit sustains working pressures up to 210 bar (3000 psi) for medium-pressure hydraulic power requirements.
The inlet side permits up to 1.4 bar (20 psi) positive pressure or a vacuum level of 5 inHg, allowing either flooded suction or reservoir draw without cavitation. SAE straight-thread ports are provided on both inlet and outlet, giving leak-tight connections with standard hydraulic fittings. Torque is transmitted through a splined shaft whose form diameter measures 19.03 mm (0.749 in); the major and minor diameters are 22.17 mm (0.873 in) and 18.16 mm (0.715 in) respectively, ensuring accurate coupling engagement. Overall pump mass is 11.8 kg (26 lb), which makes it practical for mobile equipment frames and confined power units without requiring heavy mounting structures.
Technical Specifications
Delivery @max Speed & Pressure
88.5 L/min (23 USgpm)
Geometric Displacement
36.4 cm3/rev (2.22 in3/rev)
Input Power @max Speed & Pressure
35.4 kW (47.5 hp)
Max Inlet Pressure
1.4 bar (20 psi)
Max Inlet Vacuum
5 inHg
Maximum Pressure
210 bar (3000 psi)
Outlet Position (cover End View)
C (In Line With Inlet)
Port Connections
SAE Straight Thread (Inlet/Outlet)
Rated Flow @1200 R/min (7 Bar)
11 USgpm
Shaft Rotation
Right-Hand (Clockwise)
Spline Form Diameter
19.03 mm (0.749 in)
Spline Major Diameter
22.17 mm (0.873 in)
Spline Minor Diameter
18.16 mm (0.715 in)
Weight
11.8 kg (26 lb)
1620 Old Apex Road
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