ATOS vane pump PTE-31036-1DT in stock

Brand

ATOS/Italian Atos

ATOS Piston Pumps, ATOS Gear Pumps, ATOS Axial Piston Pumps, ATOS Vane Pumps, ATOS Hydraulic Cylinders, ATOS Relief Valves

ATOS vane pumps are pumps in which vanes in the rotor slots contact the pump casing (stator rings), forcing the sucked liquid from the inlet side to the outlet side.

Key Management Points for ATOS Vane Pumps:

In addition to preventing dry running, overload, air intake, and excessive vacuum, the following should be noted regarding ATOS vane pumps:

1. Changing the pump's rotation direction changes its suction and discharge directions. Vane pumps have a prescribed rotation direction and cannot be reversed. This is because the rotor vane slots are inclined, the vanes have chamfered edges, the vane bottoms communicate with the discharge chamber, and the throttling grooves and suction/discharge ports on the distribution plate are designed for a predetermined rotation direction. Reversible vane pumps must be specially designed.

2. 3. **Vannel Pump Assembly:** The distributor plate and stator must be correctly positioned using locating pins. The vanes, rotor, and distributor plate must not be installed backwards. The suction area on the inner surface of the stator is most prone to wear; if necessary, it can be flipped over to convert the original suction area into a discharge area for continued use.

4. **Disassembly and Assembly:** Ensure the working surfaces are clean. The oil should be well filtered during operation.

5. **A clearance too large in the vane slots will increase leakage; too small a clearance will prevent the vanes from freely extending and retracting, leading to malfunction.

6. **Axial clearance of the vane pump has a significant impact on ηv:**

1) Small pumps: 0.015～0.03mm

2) Medium pumps: 0.02～0.045mm

7. **Oil temperature and viscosity:** Generally, the temperature should not exceed 55℃, and the viscosity should be between 17～37mm²/s. Too high a viscosity will make oil suction difficult; too low a viscosity will result in severe leakage. Working Principle of ATOS Vane Pump

When the rotor of an ATOS vane pump rotates, the vanes, under the action of centrifugal force and pressurized oil, have their tips pressed tightly against the inner surface of the stator. Thus, the working volume formed by the two vanes, the rotor, and the inner surface of the stator first increases in volume to draw in oil, then decreases again to discharge oil. Two cycles of oil suction and discharge are completed during one rotation of the vanes.

I. Working Principle of ATOS Single-Acting Vane Pump

The ATOS vane pump consists of a rotor 1, a stator 2, vanes 3, a distribution plate, and end covers. The inner surface of the stator has cylindrical holes. There is an eccentricity between the rotor and the stator. The vanes can slide flexibly within the slots of the rotor. Under the centrifugal force of the rotor rotation and the pressurized oil flowing into the root of the vanes, the tips of the vanes are pressed tightly against the inner surface of the stator. Thus, sealed working chambers are formed 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 chamber 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 chamber. The oil in the sealed chamber 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 force, therefore 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.

II. Working Principle of the ATOS Double-Acting Vane Pump

The working principle of the ATOS vane pump is similar to that of the single-acting vane pump, the only difference being that the stator surface consists 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. In this type of pump, each sealed working chamber completes two suction and two pressure actions per rotor revolution, hence the name double-acting vane pump. The two suction and two pressure zones 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 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 generally 12 or 16.

ATOS vane pump model table:

PFE-41045/1DT

PFE-41045/1DU 20

PFE-41045/1DW 20

PFE-41056/1DT

PFE-41056/1DU 20

PFE-41056/1DV 20

PFE-41056/1DW 20

PFE-41070/1DT

PFE-41070/1DV 20

PFE-41070/2DT 20

PFE-41070/2DV 20

PFE-41085/1DT 20

PFE-41085/1DW 20

PFE-42045/3DW 20

PFE-42056/3DU 20

PFE-42070/3DT 20

PFE-42070/3DU

PFE-42070/3DW 20

PFE-42070/7DV

PFE-51090/1DT 23

PFE-51090/1DU

PFE-51110/1DT 23

PFE-51110/1DU 23

PFE-51110/3DT 23

PFE-51129/1DT

PFE-51150/1DT

PFE-51150/3DV

PFE-52090/3DT 31

PFE-52110/3DT 31

PFED-43029/016/1DWO 20

PFED-43029/016/1SWO

PFED-43029/028/1DVO 20 PFED-43037/016/1DTA

PFED-43037/016/3SUO 20

PFED-43037/022/1DVO 20

PFED-43045/028/1DTO 20

PFED-43045/044/1DTO

PFED-43045/044/1DVO 20

PFED-43056/016/1DTO

PFED-43070/016/1DUO

PFED-43070/044/1DUO 20

PFED-43070/044/1DVO

PFED-54090/070/1DUO 21

PFED-54090/070/1DVO 21 PFED-54090/070/3DUF 21

PFED-54110/029/1DTO 21

PFED-54110/029/1DUO

PFED-54110/056/1DUO 21

PFED-54110/056/3DWB 21

PFED-54129/029/1DWG 21

PFED-54150/070/3DVO

PFED-54150/085/1SVO 21

PFED-54150/085/3DWO 21

PFEX2-31036/31022/1DT

PFEX2-42045/31022/3DT 21 PFEX2-51150/51129/3DV 23

PFEX2-51150/51150/3DV 23

PFEX2-51150/51150/3DW 23

Our company mainly deals in European and American brands and can source brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, AVENTICS, HYDAC, PILZ relays, FESTO, IFM door 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