Vickers | V20F-1S8S-38A6022R-135
V20F 1S8S 38A6022R 135
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The V20F 1S8S 38A6022R 135 pump is produced by Vickers for the Square Vane Pumps series and supplies hydraulic power in automated machinery. It delivers a displacement of 26.6 cm³ per revolution, establishing the volume of oil moved during each shaft turn. At 1200 rpm and 100 psi the rated capacity reaches 8 US gpm, providing steady flow for moderate-duty circuits. A maximum operating pressure of 172 bar lets the unit sustain high work loads without internal bypass. The permitted top speed of 2800 rpm defines the upper limit for prime-mover selection. Inlet conditions are controlled by a positive pressure ceiling of 0.7 bar and a vacuum limit of 5 in Hg to minimize cavitation risk. A two-bolt flange mounting pattern aligns the housing accurately on power packs and eases service exchange.
The inlet port is threaded 1-5/8-12 UN straight so large-bore suction lines can be attached without adapters, while the outlet port uses a 3/4-16 UNF SAE O-ring thread to maintain a leak-free high-pressure seal. Because the outlet is positioned opposite the inlet, piping can follow a direct path that reduces hose bends and pressure drop. Return flow is routed through a 1/2 NPT tank port that matches common reservoir fittings. Power transfer enters through a shaft with a 0.590-inch minor diameter, giving adequate core strength against torsional loads. An eleven-tooth spline cut to 16/32 DP with a 30-degree pressure angle engages standard drive couplings and limits fretting during continuous duty.
Technical Specifications
Displacement
26.6 cm3/rev (1.62 in3/rev)
Inlet Port Thread
1-5/8-12 UN (straight)
Max Inlet Positive Pressure
0.7 bar (10 psi)
Max Inlet Vacuum
5 in Hg
Max Operating Pressure
172 bar (2500 psi)
Max Speed
2800 rpm
Mounting Type
2-Bolt Flange
Outlet Port Position
Opposite Inlet Port (A)
Outlet Port Thread
3/4-16 UNF (SAE O-ring)
Rated Capacity
8 USgpm @1200 rpm, 100 psi
Shaft Minor Diameter
0.590 in
Shaft Spline
11 Teeth, 16/32 DP, 30°
Tank Port Thread
1/2 NPT
1620 Old Apex Road
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