ATOS piston pump PFE-31028-1DT in stock

Brand

ATOS/Italian Atos

Application Areas

Chemical, Petroleum, Energy, Electrical, Comprehensive

ATOS Piston Pump Troubleshooting Methods

ATOS Hydraulic Pumps, ATOS Piston Pumps, ATOS Gear Pumps, ATOS Axial Piston Pumps, ATOS Stack Valve

Italian ATOS Piston Pump Troubleshooting Methods

Italian ATOS Hydraulic Pump Flow Problems

(1) Insufficient suction. Caused by excessive resistance in the suction line or insufficient 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. Caused by excessive pump clearance and poor sealing. For example, scratches on the distributor plate by metal fragments or iron filings, resulting in end-face oil leakage; poor fit of the check valve sealing surface in the variable mechanism; sand holes or scratches on the support surfaces of the pump body and distributor plate. The damaged part of the pump can be identified 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.

The Italian ATOS piston pump's discharge is not zero in the neutral position.

The Italian ATOS variable axial piston pump's swashplate angle is zero when it is in 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's position is off, loose, or damaged, requiring readjustment, tightening, or replacement. Insufficient pump angle holding force and wear on the swashplate trunnion can also cause this phenomenon.

The Italian ATOS piston pump's output flow fluctuates.

The output flow fluctuation of the Italian ATOS piston pump is related to many factors. For variable pumps, it can be considered to be caused by poor control of the variable mechanism, such as foreign objects entering the variable mechanism, scratching, grinding, or damaging the control piston, causing unstable control piston movement. Insufficient amplifier energy or damaged parts, and poor damping efficiency of the control piston containing a spring, can all cause unstable control piston movement. Unstable flow is often accompanied by pressure fluctuations. These types of faults generally require disassembling the hydraulic pump, replacing damaged parts, increasing damping, improving spring stiffness, and adjusting control pressure.

Abnormal Output Pressure

The Italian ATOS piston pump is a new type of high-efficiency pump with advanced technology. With the accelerating pace of domestic production, radial piston pumps will inevitably become an important part of the piston pump application field; for details, please refer to the radial piston pump encyclopedia. The following explanation only uses the axial piston pump as an example.

The Italian ATOS axial piston pump works by utilizing the volume change generated by the reciprocating motion of a piston parallel to the drive shaft within a piston bore. Because both the piston and the piston bore are circular parts, high precision fitting can be achieved during machining, resulting in high volumetric efficiency, smooth operation, good flow uniformity, low noise, and high working pressure. However, it is more sensitive to hydraulic oil contamination, has a more complex structure, and is more expensive.

Working Principle of the Italian ATOS Piston Pump

The Italian ATOS piston pump is an important device in a hydraulic system. It relies on the reciprocating motion of the piston within the cylinder to change the volume of the sealed working cavity, thereby achieving oil suction and pressure. Piston pumps, with their advantages of high rated pressure, compact structure, high efficiency, and convenient flow regulation, are widely used in high-pressure, high-flow, and flow-adjustable 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, resulting in a reciprocating 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 piston out of or pushes it back into the cylinder block, completing the suction and discharge process. The oil in the working chamber formed by the piston and cylinder bore communicates with the pump's suction and discharge chambers through a distribution plate. A variable displacement mechanism is used to change the swashplate angle; adjusting the swashplate angle changes the pump's displacement.

ATOS Italian piston pumps are available in two main structural forms: axial piston pumps and radial piston pumps. Piston cylinders are used in radial piston pumps.

ATOS Piston Pump Stock List:

PVPC-LZQZ-5073/1D/18

PVPC-C-3029/1D

PVPC-C-3029/1D 11 /WG

PVPC-C-4046/1D

PVPC-C-4046/1S

PVPC-C-5073/1D

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 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