parker hydraulic pump rotation direction pricelist

Gear pumps have an input shaft that drives an inner gear or “drive” gear. When the shaft turns the drive gear, the drive gear turns the “driven” gear. As these two gears rotate, oil is pulled into the suction port, split and carried around the perimeter of the gears, and finally, combined and pushed out the discharge port.

When determining the rotation of a gear pump, one must decide on the viewing orientation. As an industry standard a pump’s rotation is determined when viewed looking at the input shaft. If your viewing orientation is at the rear of the pump, the technical rotation of the pump is opposite the visual rotation.

The suction and discharge ports are determined by the rotation of the input shaft. As with rotation, the position of each port is dependent upon the viewing orientation. Here to, the industry standard, when looking at the input shaft, is for the drive gear to be oriented above the driven gear, also known as “belly down”. In this orientation, a clockwise pump will have suction on the left and discharge on the right and vice versa. If the pump is oriented with the “belly up”, the suction and discharge ports will appear opposite.

In the parts tables below you may select the hydraulic parts you need. All PVplus parts we sell are genuine Parker Hannifin and originate in Germany. We highly recommend to use genuine OEM parts only to ensure smooth operation and longer service life.

The Parker PVplus hydraulic pumps are produced in Chemnitz, Germany and manufactured by Parker Hannifin Manufacturing Germany GmbH & Co. KG. The PV040R1K1T1NMMC is an axial piston pump of variable displacement with a maximum displacement volume of 40.0 ml/rev. The mounting interface is according to metric (ISO 3019-2) and the pump control group is hydromechanical control. Further details are listed in the Parker PV040 Datasheet and pump control options.

All pump repair kits listed on this page are for Parker PVplus axial piston pumps of latest design series. Current design of Parker PVplus PV040 is 46 Design (hydraulic pump) and 45 Design (pump controller). The item numbers listed in these tables refer to the PV040 exploded view drawing of the Parker PV040 Spare Sparts List PVplus Design 46. Should you require spare parts for an older design PVplus pump, please contact us for further information (do not forget to include pump name plate information).

Be sure to operate the hydraulic pump under optimum oil viscosity (not too low) since a thinner lubrication film causes more direct metal to metal contact resulting in increased wear in glide and roller bearings. The PVplus bearing kit contains both the front and rear roller bearing of the drive shaft and are also included in the pump shaft repair kit. The PVplus trunnion bearing unit contains the two glide bearings of the pump swash plate (trunnion bearings are not included in swash plate kit).

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