ATOS vane pump PFE-31016-1DU in stock

Brand

ATOS/Italian Atos

ATOS Vane Pump Precautions

In addition to preventing dry running, overload, air intake, and excessive vacuum, the following points should be noted when managing 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 are chamfered, the vane bottoms communicate with the discharge chamber, and the throttling grooves and suction/discharge ports on the distributor plate are designed according to the predetermined rotation direction. Reversible vane pumps must be specially designed.

2. Vane Pump Assembly: The distributor plate and stator should 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 for continued use, so that the original suction area becomes the discharge area.

3. Disassembly and Assembly: Keep the working surfaces clean, and ensure the oil is well filtered during operation.

4. If the clearance between the vanes and vane slots is too large, leakage will increase; if it is too small, the vanes cannot freely extend and retract, leading to malfunction. 5. The axial clearance of a vane pump has a significant impact on ηv.

1) Small pumps - 0.015~0.03mm

2) Medium pumps - 0.02~0.045mm

6. 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 serious leakage.

As a pump product, vane pumps more often refer to sliding vane pumps. A quick search will reveal that almost all vane pumps refer to sliding vane pumps.

The operating principle of an ATOS vane pump is similar to that of a 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, and 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, so 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.

An ATOS vane pump is a pump where the vanes in the rotor slots contact the pump casing (stator rings), forcing the sucked liquid from the inlet side to the outlet side.

The working principle of the ATOS vane pump:

When the vane pump rotor rotates, the vanes, under the action of centrifugal force and pressurized oil, have their tips pressed tightly against the inner surface of the stator. In this way, 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, and then decreases in volume to discharge oil. Each rotation of the vanes completes two cycles of oil suction and discharge.

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 The company mainly deals with European and American brands and can source brands from any European country. For example, our key 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, Helón (Norgren)

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