供应铜柱塞泵 Hartmann柱塞泵

Please select your frame size below or an entire PVX model selection chart on the rightFEATURESIdentical dimensions for mobile and industrial applicationsIdentical dimensions for oil-based, water-based or synthetic fluidsWorks with a wide variety of hydraulic fluids, including fire resistantAllows unrestricted mounting orientations: horizontal, slanted, sideturned or vertical (Air-purge option in vertical or side-turned positions is offered upon request)Displacement range of 0.6-12 ci/r, split across 5 frame sizesRotating group design relies on more than 35 years of proven performance record:a) Incorporate soft-on-hard rotation of manganese-bronze rotor on hardened surface of the valve plateb) Incorporate soft-on-hard sliding of manganese-bronze piston shoes on hardened surface of the swash-platec) Incorporate soft-on-hard spline engagement of manganese-bronze rotor and ETD 150 steel shaftd) Incorporate pistons equipped with individual springse) Incorporate piston assembly that uses riveted piston-ball socket that does not ‘freeze’ and can withstands high tensile/compressive forcesPump speed and performance timing does not change with age, wear or fluid characteristicsRotor is always dynamically balanced in axial and circumferential directionsRotor does not ‘freeze’ on the shaftRotating group hydrodynamic balance does not change with age, wear or fluid characteristicsIn-board trunnions provide direct support to the swash-plate, with mechanically efficient, fast swivel timeDynamic controlling design of the angular positioning of the swash-plate relies on 35 years of proven performance recorda) Volume control defines maximum displacement; Responds to line pressureb) Null control defines minimum displacement or deadhead stop; Responds to command signals from pump controlc) When null control command-signal is ON, pump stays on stroke; Reduction in command signal destrokes the pump via volume control forceAll PVX pumps use the same standard-line of control modules and can be equipped with electronic pressure control, electronic flow control or bothControl modules are stackable and can be added or removed at customers site at all times by qualified personnel