ATOS vane pump PFED-54129/029/1D in stock

Brand

ATOS/Italian Atos

ATOS proportional valves, ATOS stack valves, ATOS solenoid valves, ATOS amplifiers

The operating principle of the ATOS vane pump is similar to that of a single-acting vane pump, the only difference being that the stator surface is composed of eight parts: two long-radius circular arcs, two short-radius circular arcs, and four transition curves. Furthermore, the stator and rotor are concentric. When the rotor rotates clockwise as shown in the diagram, the volume of the sealed working chamber gradually increases at the upper left and lower right corners (the suction zone), and gradually decreases at the lower left and upper right corners (the pressure zone). A sealing zone separates the suction and pressure zones. With each rotor revolution, each sealed working chamber completes two suction and two pressure actions, hence the name double-acting vane pump. The two suction zones and two pressure zones of the pump are radially symmetrical, and the hydraulic pressure acting on the rotor is radially balanced, therefore it is also called a balanced vane pump.

The instantaneous flow rate of an ATOS vane pump, a double-acting vane pump, is pulsating. The pulsation rate is small when the number of vanes is a multiple of 4. Therefore, the number of vanes in a double-acting vane pump is typically 12 or 16.

The vanes of an ATOS vane pump can slide flexibly within the rotor slots. Under the centrifugal force of the rotating rotor and the pressure of the oil flowing through the vane roots, the vane tips adhere tightly to the inner surface of the stator, thus forming sealed working chambers between two adjacent vanes, the distribution plate, the stator, and the rotor. When the rotor rotates counterclockwise, the vanes on the right side of the diagram extend outwards, gradually increasing the volume of the sealed working chambers and creating a vacuum. Oil is then drawn in through the suction port 6 and the window on the distribution plate 5. On the left side of the diagram, the vanes retract inwards, gradually decreasing the volume of the sealed chambers. The oil in the sealed chambers is forced out through another window on the distribution plate and the pressure port 1, and output to the system. This type of pump performs one suction and one pressure cycle per rotor revolution, hence it is called a single-acting pump. The rotor is subjected to radial hydraulic imbalance forces, hence it is also called an unbalanced pump, and its bearing load is relatively large. Changing the eccentricity between the stator and rotor changes the pump's displacement; therefore, these pumps are all variable displacement pumps.

ATOS vane pump stock list:

PFEX2-51150/51150/3DW 23

PFEX2-51150/51150/3DV 23

PFEX2-51150/51129/3DV 23

PFEX2-42045/31022/3DT 21

PFEX2-31036/31022/1DT

PFED-54150/085/3DWO 21

PFED-54150/085/1SVO 21

PFED-54150/070/3DVO

PFED-54129/029/1DWG 21

PFED-54110/056/3DWB 21

PFED-54110/056/1DUO twenty one

PFED-54110/029/1DUO

PFED-54110/029/1DTO 21

PFED-54090/070/3DUF 21

PFED-54090/070/1DVO 21

PFED-54090/070/1DUO 21

PFED-43070/044/1DVO

PFED-43070/044/1DUO 20

PFED-43070/016/1DUO

PFED-43056/016/1DTO

PFED-43045/044/1DVO 20

PFED-43045/044/1DTO

PFED-43045/028/1DTO 20 PFED-43037/022/1DVO 20

PFED-43037/016/3SUO 20

PFED-43037/016/1DTA

PFED-43029/028/1DVO 20

PFED-43029/016/1SWO

Our company mainly deals in European and American brands and can purchase brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi