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The V20F 1S13S 11B8K 22R pump belongs to the Square Vane Pumps series and is manufactured by Vickers for controlled hydraulic flow in automation systems. Its displacement is 42.5 cm³ per revolution, so each shaft turn supplies a fixed volume of oil. A No. 8 flow control orifice sets a predefined restriction that helps meter flow to downstream components. The inlet port uses a 1-5/8-12 straight thread to connect securely to suction plumbing. Maximum inlet pressure is limited to 0.7 bar and maximum inlet vacuum is 5 inHg, boundaries that avoid aeration at the pump entry. A two-bolt flange mounting pattern simplifies installation, and the outlet port sits 90° counter-clockwise from the inlet to match common manifold layouts.
The pump operates up to 152 bar, defining the highest working pressure allowed in the circuit, while a relief valve set at 175 bar prevents overload by venting excess pressure. At 1200 rpm and 100 psi it delivers 13 US gpm, providing a reference point for sizing actuators. Shaft speed can reach 2400 rpm to increase flow when needed. Drive torque is transferred through a 16/32 DP, 9-tooth, 30° pressure-angle spline, and the spline’s 0.465-inch minimum minor diameter fits standard couplings. Pressurized fluid exits through a 3/4-16 UNF-2B threaded outlet, and a 1/2 NPT tank port returns leakage to the reservoir, completing the circuit.
Displacement
42.5 cm3/rev (2.59 in3/rev)
Flow Control Orifice
No. 8
Inlet Port Thread
1-5/8-12 Straight Thread
Max Inlet Pressure
0.7 bar (10 psi)
Max Inlet Vacuum
5 inHg
Max Operating Pressure
152 bar (2200 psi)
Max Speed
2400 rpm
Mounting
2-Bolt Flange
Outlet Port Position
90° CCW From Inlet
Outlet Port Thread
3/4-16 UNF-2B
Rated Flow (1200 Rpm, 100 Psi)
13 US gpm
Relief Valve Setting
175 bar (2500 psi)
Shaft Spline
16/32 DP, 9 Teeth, 30° PA
Spline Minor Diameter
0.465 in (min)
Tank Port
1/2 NPT
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