ATOS PVPC-R-3029 piston pump in stock

Brand

ATOS/Italian Atos

Application Areas

Chemical, Petroleum, Mining, Road/Rail/Marine, Comprehensive

The Italian ATOS piston pump is an important component of a hydraulic system. It relies on the reciprocating motion of the piston within the cylinder to change the volume of the sealed working chamber, thus achieving oil suction and pressure. Piston pumps offer advantages such as high rated pressure, compact structure, high efficiency, and convenient flow adjustment, and are widely used in high-pressure, high-flow, and flow-regulating applications, such as hydraulic presses, construction machinery, and ships.

The Italian ATOS piston pump is a type of reciprocating pump, belonging to the category of volumetric pumps. Its piston is driven by the eccentric rotation of the pump shaft, reciprocating in motion. Both its suction and discharge valves are one-way valves. When the piston is pulled outward, the pressure in the working chamber decreases, the outlet valve closes, and when the pressure is lower than the inlet pressure, the inlet valve opens, allowing liquid to enter. When the piston is pushed inward, the pressure in the working chamber increases, the inlet valve closes, and when the pressure is higher than the outlet pressure, the outlet valve opens, allowing liquid to exit. When the drive shaft rotates the cylinder block, the swashplate pulls the plunger out or pushes it back into the cylinder block, completing the oil suction and discharge process. The oil in the working chamber formed by the plunger and cylinder bore communicates with the pump's suction and discharge chambers through the distribution plate. The variable displacement mechanism is used to change the swashplate's tilt angle; adjusting the swashplate's tilt angle changes the pump's displacement.

ATOS Plunger Pump Structure: Plunger pumps are divided into two representative structural forms: axial plunger pumps and radial plunger pumps. Since the radial plunger pump (ATOS plunger pump) is a relatively new and high-efficiency pump with advanced technology, and with the continuous acceleration of domestic production, radial plunger pumps will inevitably become an important part of the plunger pump application field. For details, please refer to the radial plunger pump encyclopedia; the following explanation only uses the axial plunger pump as an example.

ATOS Plunger Pump Maintenance Types:

Swashplate-type axial plunger pumps generally use a cylinder block rotation and end-face distribution method. A friction pair consisting of a bimetallic plate and a steel distribution plate is inlaid on the cylinder block end face, and most use a planar distribution method, making maintenance relatively convenient. The distributor plate is one of the key components of an axial piston pump. During pump operation, on one hand, the high-pressure oil in the working chamber pushes the cylinder block towards the distributor plate; on the other hand, the oil film pressure between the distributor plate and the cylinder block creates a hydraulic counterforce on the cylinder block, causing the cylinder block to move away from the distributor plate. The designed hydraulic clamping force Fn of the cylinder block on the distributor plate is slightly greater than the hydraulic counterforce Ff of the distributor plate on the cylinder block, i.e., Fn/Ff = 1.05~1.1, ensuring normal pump operation and maintaining high volumetric efficiency.

Troubleshooting for Italian ATOS piston pumps:

Flow problems of Italian ATOS piston pumps

(1) Insufficient suction. This is caused by excessive resistance in the suction line or insufficient oil replenishment. For example, excessive pump speed, low oil level in the tank, air leakage in the inlet pipe, or clogged oil filter.

(2) Excessive leakage. This is caused by excessive pump clearance and poor sealing. For example, if the distributor plate is scratched by metal fragments or iron filings, oil leakage may occur at the end face; the sealing surface of the check valve in the variable mechanism may not fit properly; and there may be sand holes or scratches on the support surfaces of the pump body and the distributor plate. The location of the pump damage can be determined by checking for foreign matter mixed in the hydraulic oil within the pump body.

(3) If the swashplate angle is too small, the pump's displacement will be low. This requires adjusting the variable piston to increase the swashplate angle.

Discharge is not zero in the neutral position.

The swashplate angle of a variable axial piston pump is zero when it is called the neutral position, at which point the pump's output flow should be zero. However, sometimes the neutral position deviates from the midpoint of the adjustment mechanism, and there is still flow output at the midpoint. This is because the controller is misaligned, loose, or damaged, requiring readjustment, tightening, or replacement. Insufficient pump angle holding force and wear on the swashplate trunnion can also cause this phenomenon. Italian ATOS plunger pump stock list:

PVPC-C-5073/1S 10

PVPC-CH-5073/1D-IX 24DC

PVPC-CZ-5073/1D 12

PVPC-LQZ-5073/1D 11

PVPC-LW-4046/1D 10

PVPC-LZQZ-3029/1D

PVPC-LZQZ-3029/1D/18

PVPC-LZQZ-4046/1D

PVPC-LZQZ-4046/1D/18

PVPC-LZQZ-5073/1D 11

PVPC-LZQZ-5073/1D/18

PVPC-R-3029/1D 11 PVPC-R-4046/1D 11

PVPC-SLE-3029/10 20

PVPC-SLE-4046/1D 20

PVPCX2E-C-3029/31036/1D 10

PVPCX2E-LW-3029/31036/1D 10

PVPC-C-3029

PVPC-C-4046

PVPC-C-5073

PVPC-C-5090

PVPC-CH-3029

PVPC-CH-4046

PVPC-CH-5073

PVPC-CH-5090

PVPC-R-3029

PVPC-R-4046

PVPC-R-5073

PVPC-R-5090 PVPC-L-3029

PVPC-L-4046

PVPC-L-5073

PVPC-L-5090

PVPC-LW-3029

PVPC-LW-4046

PVPC-LW-5073

PVPC-LW-5090

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, 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