VIVOLO High-Pressure Gear Pump: X2P49 and X2P51
VIVOLO High-Pressure Gear Pump Models X2P49 and X2P51 Parameters
Note: Both X2P49 and X2P51 belong to the XV-2P series high-pressure gear pumps of the Italian VIVOLO brand. This series is a single-direction gear pump with an aluminum alloy housing, supporting unidirectional/bidirectional rotation and adaptable to various installation and connection specifications. The following are the core parameters of the two models (sorted based on official technical data and authoritative supplier information) .
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Parameter Name
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X2P49 (taking X2P4902EPOA as an example)
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X2P51 (taking X2P5102EPOA as an example)
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Remarks
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Series
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XV-2P Series
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XV-2P Series
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The XV-2P series has a displacement range of 4.2-39.6 cc/rev, focusing on medium and high-pressure scenarios.
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Displacement
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14.4 cc/rev
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16.8 cc/rev
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Displacement is the displacement per revolution, which determines the output flow of the pump (flow rate = displacement × speed).
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Continuous Working Pressure
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250 bar
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230 bar
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Rated pressure for long-term stable operation; exceeding it will shorten the service life of the pump body.
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Peak Pressure (≤0.5s)
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290 bar
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270 bar
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Short-term instantaneous maximum pressure; it cannot be in the peak state for a long time.
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Speed Range
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700-3500 rpm
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700-3500 rpm
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The minimum speed avoids cavitation; it is recommended that the continuous working speed ≤ 2500 rpm [7][8].
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Rotation Direction
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Clockwise (reversible without additional components)
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Clockwise (reversible without additional components)
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Reversal can optimize storage space and adapt to different system layouts.
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Mounting Flange
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φ36.5 mm, 4-hole mounting (96.2 mm×71.5 mm, hole diameter φ9 mm)
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φ36.5 mm, 4-hole mounting (96.2 mm×71.5 mm, hole diameter φ9 mm)
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Aluminum alloy flange; cast iron flange is optional (suitable for high-pressure scenarios).
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Drive Shaft
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1:8 tapered shaft with 4 mm disc spring
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1:8 tapered shaft with 4 mm disc spring
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Various shaft types such as parallel shaft and spline shaft are optional to adapt to different driving needs.
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Suction Port Connection
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LK 40 mm, thread M8×1.25
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LK 40 mm, thread M8×1.25
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The size of the suction port is larger than that of the discharge port to reduce suction resistance and avoid cavitation.
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Discharge Port Connection
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LK 30 mm, thread M6×1
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LK 30 mm, thread M6×1
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The thread specification complies with industry standards, facilitating pipeline connection.
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Mounting Length
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104.2 mm
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108.2 mm
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The difference in mounting length is determined by the internal structure and displacement.
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Sealing Material
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NBR (Nitrile Butadiene Rubber)
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NBR (Nitrile Butadiene Rubber)
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Fluororubber sealing is optional, suitable for high-temperature and corrosive working conditions.
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Allowable Shaft Torque
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233.2 Nm
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233.2 Nm
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Match with the torque of the drive motor to avoid shaft damage.
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Housing Material
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Aluminum Alloy
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Aluminum Alloy
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Lightweight design, suitable for scenarios with weight requirements; cast iron end cover is optional to enhance pressure resistance.
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Optional Configurations
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Maximum pressure valve, integrated outer bearing, high sealing, double shaft, etc.
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Maximum pressure valve, integrated outer bearing, high sealing, double shaft, etc.
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Can be customized according to actual working conditions.
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Supplementary Instructions on Series Commonality
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All XV-2P series gear pumps adopt an external meshing structure, with volumetric efficiency ≥ 93% and mechanical efficiency ≥ 88%, featuring low operating noise and small internal leakage .
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Operating temperature range: -20℃ to +80℃; ISO VG 16-68 cSt hydraulic oil is recommended, and the oil cleanliness must be ≤ NAS 1638-9.
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Application Scenarios: Medium and high-pressure hydraulic systems such as construction machinery, agricultural machinery, and industrial equipment; can be used as a single pump or combined into a multi-pump.
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Product Advantages: Original Italian production, hand-assembled and tested, high reliability, and flexible customization of shaft type, flange, oil port position and other parameters.
Note: The above parameters are based on the standard models X2P4902EPOA and X2P5102EPOA. Different suffixes (such as FSRA, ECBA) correspond to different installation, sealing or shaft configurations, and the parameters may vary slightly. Please refer to the official product manual for details .
