Vickers | 35V25A-1X22X
35V25A-1X22X
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The 35V25A-1X22X vane pump belongs to the V Series Vane Pumps and is manufactured by Vickers to supply consistent hydraulic flow in automation circuits. Design number 22 specifies the internal cartridge arrangement for this model. A displacement of 81 cm³ per revolution, equal to 4.94 in³ per revolution, determines the volume of fluid moved each shaft turn. At 1200 rpm the pump delivers a rated flow of 25 gpm, providing a reference point for sizing downstream components. The 1.25 in shaft diameter matches common motor outputs and, together with a 5/16 in key, transfers torque without slip. Flange mounting enables rigid installation on power units, while a minimum operating speed of 600 rpm prevents loss of vane stability. Continuous service may reach 1800 rpm with anti-wear hydraulic oil, giving flexibility for variable-speed drives.
The pump tolerates a continuous outlet pressure of 172 bar when AW oil is used, allowing application in medium-pressure systems. An inlet pressure limit of 1.4 bar prevents seal overload, whereas a minimum inlet pressure of −0.17 bar establishes the maximum permissible suction vacuum to avoid cavitation. Fluid paths are provided by an SAE four-bolt flange so that high-flow lines connect without adapters, and the ports use inch threads to fit standard North American fittings. A moment of inertia of 0.001395 N·m·s² informs drive selection by indicating the torque required to accelerate the rotating group. These characteristics combine to support predictable flow and pressure in automated hydraulic machinery.
Technical Specifications
Design Number
22
Displacement
81 cm3/rev
Displacement (in3/rev)
4.94 in3/rev
Key Size
5/16 in
Max Cont. Pressure (aw Oil)
172 bar
Max Inlet Pressure
1.4 bar
Maximum Speed (aw Oil)
1800 rpm
Min Inlet Pressure
-0.17 bar
Minimum Speed
600 rpm
Moment Of Inertia
0.001395 N·m·s²
Mounting
Flange Mounting
Port Connection
SAE 4-Bolt Flange
Port Thread Type
Inch Thread
Rated Flow (1200 Rpm)
25 gpm
Shaft Diameter
1.25 in
1620 Old Apex Road
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