ATOS vane pump PFED series stock list

Brand

ATOS/Italian Atos

ATOS Relief Valve, ATOS Proportional Valve, ATOS Stack Valve, ATOS Solenoid Valve, ATOS Amplifier

Key Management Points for ATOS Vane Pumps:

Besides preventing dry running, overload, air intake, and excessive vacuum, ATOS vane pumps should also be handled with care regarding the following:

1. Changing the pump's rotation direction changes its suction and discharge directions. Vane pumps have a designated rotation direction and cannot be reversed. This is because the rotor blades are inclined, the blades are chamfered, the blade bottoms communicate with the discharge chamber, and the throttling grooves and suction/discharge ports on the distributor plate are designed for 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 installation, so that the original suction area becomes the discharge area for continued use.

3. Disassembly and Assembly: Ensure the working surfaces are clean, and the oil should be well filtered during operation. 4. Excessive clearance between the blades and the slots increases leakage; insufficient clearance prevents the blades from freely expanding and contracting, leading to malfunction.

5. The axial clearance of a vane pump significantly affects 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. Excessive viscosity makes oil suction difficult; insufficient viscosity leads to severe leakage.

ATOS vane pumps are pumps where the blades in the rotor slots contact the pump casing (stator ring), forcing the sucked-in liquid from the inlet side to the outlet side.

When the ATOS vane pump rotor rotates, the blade tips are pressed tightly against the inner surface of the stator under the action of centrifugal force and pressurized oil. The working volume formed by these two blades, along with the inner surfaces of the rotor and stator, first draws in oil from a small volume, then discharges oil from a large volume back to a small volume. This process is completed twice during each rotation of the blades.

ATOS vane pump stock list:

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

ATOS vane pumps operate on a similar principle to single-acting vane pumps, 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 and two pressure zones are radially symmetrical, and the hydraulic pressure acting on the rotor is radially balanced, thus 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 typically 12 or 16.

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 subsidiaries)

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

British brands: Norgren

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

Our business scope includes:

Hydraulic components such as:

Solenoid directional valves, directional valves, check valves, stack valves, relief valves, counterbalancing valves, proportional valves, manual directional valves, flow valves, pressure reducing valves

Throttle valves, pressure control valves, back pressure valves, filling valves, flow dividers, shuttle valves, pressure relays, cartridge valves, pneumatic valves, piston pumps

Gear pumps, vane pumps, cycloidal hydraulic motors, oil coolers, hydraulic cylinders, etc. Pneumatic components include:

Air source processor assemblies, filters, pressure regulating valves, oilers, solenoid valves, pneumatic valves, angle seat valves, manual valves, pull valves, foot valves;

Mechanical valves, check valves, vacuum generators, cylinders, magnetic switches, dampers, pressure gauges, quick couplings, floating couplings;

Pressure gauge switches, water coolers, electric positioners, PU tubing, vacuum suction cups, oil filters, vibrators;

Electrical components include:

Relays, sensors, converters, proximity switches, encoders, programmable controllers;

The company maintains a large inventory, with standard parts readily available. To better serve customers in various industries, the company also distributes other spare parts, with professional sourcing channels and reasonable prices.

The company's products are widely used in industrial machinery, machine tools, plastic machinery, shoe machinery, brick machinery, metallurgy, mining, chemical industry, papermaking, coal mining, shipbuilding, etc.