Italian ATOS gear pump PFG-327-D/RO in stock

Brand

ATOS/Italian Atos

ATOS Gear Pump Structure and Principle:

The structure of the ATOS gear pump is very simple. Its most basic form consists of two identical gears meshing and rotating within a tightly fitted housing. The inside of this housing is shaped like an "8," housing the two gears, whose outer diameter and sides fit tightly into the housing. Material from the extruder enters between the two gears at the inlet and fills this space. As the gears rotate, it moves along the housing and is finally discharged when the two gears mesh. Technically, a gear pump is also called a positive displacement device, much like a piston in a cylinder. When one gear enters the fluid space of another gear, the liquid is mechanically squeezed out. Because liquid is incompressible, the liquid and the gears cannot occupy the same space at the same time, thus the liquid is expelled. Due to the continuous meshing of the gears, this phenomenon occurs continuously, thus providing a continuous discharge volume at the pump outlet. The amount discharged is the same for each revolution of the pump. With the continuous rotation of the drive shaft, the pump continuously discharges fluid. The pump's flow rate is directly related to its rotational speed. In reality, there is a small amount of fluid loss within the pump, preventing it from reaching 100% efficiency. This is because the fluid is used to lubricate the bearings and gears, and the pump body cannot be perfectly flush, so a small amount of fluid loss is inevitable. However, the pump can still operate well, achieving 93%–98% efficiency for most extruded materials. For fluids whose viscosity or density varies during the process, this type of pump is not significantly affected. If a damper is present, such as a filter or restrictor on the outlet side, the pump will force the fluid through them. If this damper changes during operation—for example, if the filter becomes dirty or clogged, or the back pressure of the restrictor increases—the pump will still maintain a constant flow rate until it reaches the mechanical limit of the weakest component in the system (usually equipped with a torque limiter).

ATOS gear pumps are a type of positive displacement pump, consisting of two gears, a pump body, and front and rear covers forming two enclosed spaces. When the gears rotate, the volume of the space on the disengaged side increases, creating a vacuum that draws in liquid. Conversely, the volume of the space on the meshing side decreases, forcing the liquid into the pipeline. The suction chamber and discharge chamber are separated by the meshing line of the two gears. The pressure at the outlet of the gear pump depends on the resistance at the pump outlet. ATOS gear pump operation and maintenance: 1. Start-up: (1) Before starting, check the sealing of all pipeline flanges and joints. (2) Rotate the coupling; there should be no friction or collision noise.

(3) For the Sth start, inject the pumping liquid into the pump.

(4) Before starting, fully open the valves in the suction and discharge pipelines; starting with valves closed is strictly prohibited.

(5) After verifying the motor's rotation direction, start the motor.

2. Shutdown:

(1) Turn off the motor.

(2) Close the pump's inlet and outlet valves. PFG-114

PFG-120

PFG-128

PFG-135

PFG-142

PFG-160

PFG-174

PFG-187

PFG-199

PFG-211

PFG-214

PFG-216

PFG-218

PFG-221

PFG-327

PFG-340

PFG-354

PFG-210

PFG-114/D

PFG-120/D

PFG-128/D

PFG-142/D

PFG-160/D

PFG-174/D

PFG-187/D

PFG-199/D

PFG-210/D

PFG-211/D PFGXF-114/D

PFGXF-120/D

Our company mainly deals in 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, ROSS

British brands: Norgren

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