Bosch Rexroth | PVQ1-1X027R
PVQ1-1X/027R
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The PVQ1-1X/027R belongs to the PV Fixed Displacement Pumps series manufactured by Bosch Rexroth, and it delivers steady flow to hydraulic automation circuits that rely on constant displacement. The shaft rotates clockwise, so the prime mover must drive the pump in that direction to avoid reverse flow. A displacement of 27.4 cm³ per revolution defines the volume moved with each turn, allowing accurate flow calculations in closed-loop designs. At 1,500 rpm the pump supplies up to 39 l/min, giving engineers a reference point for sizing valves and actuators. Operation remains stable down to 600 min⁻¹, which permits low-speed duty cycles without loss of lubrication. The unit tolerates speeds up to 2,700 min⁻¹ under a 1 bar inlet condition, enabling higher output when mechanical power is available. Absolute inlet pressure must stay above 0.83 bar to prevent cavitation, while a ceiling of 2.4 bar protects seals and bearings from excessive loading. An SAE J744 flange mounting interface streamlines installation on standard hydraulic power packs.
A continuous pressure limit of 210 bar sets the maximum working stress the housing and gear set may withstand during extended operation. When HFB fire-resistant fluid is used, the operating pressure must be restricted to 70 bar, whereas HFC water-glycol media allow up to 140 bar; these ratings guide fluid selection and system derating. The pump is specified for HLP mineral oil according to DIN 51524-2, indicating the viscosity range and additive package it is designed to handle. Oil cleanliness must reach ISO 4406 20/18/15 to minimize wear on internal surfaces. A pressure port sized for SAE 3/4-inch fittings supports compact high-pressure hoses, and the suction side accepts an SAE 1 1/2-inch connection to keep inlet velocity low. The assembled unit weighs 12 kg, so bracketry and maintenance handling must account for this mass.
Technical Specifications
Direction Of Rotation
Clockwise
Displacement
27.4 cm3/rev
Fluid Cleanliness Class
ISO 4406 20/18/15
Inlet Pressure Max (abs)
2.4 bar
Inlet Pressure Min (abs)
0.83 bar
Max Continuous Pressure
210 bar
Max Flow (1500 Rpm)
39 l/min
Max Operating Pressure (hfb)
70 bar
Max Operating Pressure (hfc)
140 bar
Max Speed (1 Bar Inlet)
2700 min-1
Min Speed
600 min-1
Mounting Style
SAE J744 Flange
Pressure Connection Size
SAE 3/4"
Pressure Fluid
HLP Mineral Oil (DIN 51524-2)
Suction Connection Size
SAE 1 1/2"
Weight
12 kg
1620 Old Apex Road
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