Vickers | PVB20-LS-20-CM-11
PVB20-LS-20-CM-11
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The PVB20-LS-20-CM-11 piston pump is produced by Vickers within the PVB Piston Pumps series and is intended for hydraulic automation where regulated pressure and steady flow are required. A pressure compensator control adjusts the swashplate to maintain a preset outlet pressure and prevent excess energy consumption. Geometric displacement is 42.80 cm³ per revolution so each pump turn moves a fixed volume of fluid. At 1800 r/min the unit delivers 75.7 L/min (20.0 gpm) to downstream actuators. The displacement zone is on one side of center, which establishes unidirectional flow relative to the shaft. Rated input power at 1800 r/min and 210 bar is 29.4 kW, indicating the motor size needed to drive the pump under maximum load. Maximum outlet pressure of 210 bar with AW oil defines the upper working limit, while a permitted shaft speed of 1800 r/min prevents excessive wear.
The pump accepts AW oils, water glycols, and invert emulsions, allowing installation in systems that use fire-resistant or conventional fluids. Inlet pressure must not exceed 1.0 bar, so proper suction line sizing is necessary to avoid cavitation. Ambient operating range extends from –20 °C to +70 °C, enabling service in cold storage or hot factory environments. Mineral oil temperature may rise to +80 °C without damaging internal seals, supporting continuous duty at elevated heat loads. Sound emission is 81 dB(A) at 1500 r/min and 140 bar, a value useful for acoustic enclosure design. Shaft rotation is anticlockwise when viewed from the shaft end, so coupling orientation must match the prime mover.
Technical Specifications
Control Type
Pressure Compensator (CM)
Displacement Zone
One Side Of Center
Flow At 1800 R/min
75.7 L/min (20.0 gpm)
Geometric Displacement
42.80 cm3/rev (2.61 in3/rev)
Hydraulic Fluids
AW oils, water glycols, invert emulsions
Input Power At 1800 R/min, 210 Bar
29.4 kW (39.5 hp)
Max Ambient Temperature
+70 C (+158 F)
Max Fluid Temperature (mineral Oil)
+80 C (+176 F)
Max Inlet Pressure
1.0 bar (15 psi)
Max Outlet Pressure (aw Oil)
210 bar (3000 psi)
Max Shaft Speed
1800 r/min
Min Ambient Temperature
-20 C (-4 F)
Noise Level (1500 R/min, 140 Bar)
81 dB(A)
Shaft Rotation
Anticlockwise (viewed at shaft end)
1620 Old Apex Road
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