ATOS gear pump PFG-142/D 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 Proportional Valves

ATOS gear pumps are a type of positive displacement pump. They consist 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 and discharge chambers are separated by the meshing line of the two gears. The pressure at the pump outlet depends on the resistance at the pump outlet.

ATOS gear pumps are a type of positive displacement pump. They consist 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 two gears. The pressure at the discharge port of a gear pump depends on the magnitude of the resistance at the pump outlet. A gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport or pressurize liquids. The structure of an external meshing double gear pump: A pair of meshing gears and the pump cylinder separate the suction chamber and the discharge chamber. When the gears rotate, the inter-tooth volume at the point where the gear teeth disengage on the suction side gradually increases, the pressure decreases, and the liquid enters the inter-tooth space under the pressure difference. As the gears rotate, the liquid between each tooth is carried to the discharge chamber. At this time, the inter-tooth volume at the point where the gear teeth mesh on the discharge side gradually decreases, and the liquid is discharged. Gear pumps are suitable for transporting lubricating liquids that do not contain solid particles, are non-corrosive, and have a wide viscosity range. The pump flow rate can reach 300 m³/h, and the pressure can reach 3 × 10⁷ Pa. It is commonly used as a hydraulic pump and for transporting various oils. Gear pumps are simple and compact in structure, easy to manufacture and maintain, and have self-priming capability. However, they experience significant flow and pressure pulsations and generate considerable noise. Gear pumps must be equipped with a safety valve to prevent damage to the pump or prime mover caused by factors such as blockage in the discharge pipe, which could lead to the pump's outlet pressure exceeding the allowable value.

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 interior of this housing is shaped like an "8," housing the two gears with their outer diameter and sides tightly fitted to the housing. Material from the extruder enters between the two gears through the suction inlet, filling this space. As the gears rotate, the material moves along the housing and is finally discharged when the two gears mesh. Technically, a gear pump is also called a positive displacement device, similar to 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 simultaneously, thus the liquid is expelled. This phenomenon occurs continuously due to the constant meshing of the teeth, thus providing a continuous discharge volume at the pump outlet; the discharge volume is the same for each pump revolution. As the drive shaft rotates continuously, 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. This type of pump is not significantly affected by fluids whose viscosity or density varies during the process. If a damper is present, such as a filter or restrictor on the discharge side, the pump will force the fluid through it. If this damper changes during operation—that is, if the filter becomes dirty or clogged, or the back pressure of the limiter increases—the pump will still maintain a constant flow rate until it reaches the mechanical limit of the weakest component in the unit (usually equipped with a torque limiter).

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

PFGXF-128/D

PFGXF-142/D

PFGXF-160/D

PFGXF-174/D

PFGXF-187/D

PFGXF-199/D

PFGXF-210/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, Helón (Norgren)

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