Rexroth solenoid valve can not open the reason analysis and solutions

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9. Cause of failure: "left-handed" oil pump is installed with "right-handed", resulting in damage to the skeleton oil seal; Exclusion method: the "right-handed" pump cannot be installed on the "left-handed" machine, otherwise the skeleton oil seal will be damaged; 10. Cause of failure: The hydraulic oil is too dirty. Exclusion Method: Cleaning System, ...

Rexroth Pressure Reducing Valve Failure Analysis: 1. Air is mixed into the oil 2. The damping hole is sometimes clogged 3. The roundness of the hole between the slide valve and the valve body exceeds the regulations, so that the valve is stuck 4. The spring is deformed or stuck in the spool valve, making it difficult for the spool to move or the spring is too soft 5.

How Rexroth vane pumps work: 1. Single-acting vane pump The pump is composed of parts such as rotor 1, stator 2, blade 3, oil distribution pan and end cover. The inner surface of the stator is a cylindrical hole. There is eccentricity between the rotor and stator. The blades slide flexibly in the rotor slots ...

1. The speed and pressure of the pump should not exceed the specified value, and long-term use should be avoided, otherwise the life of the hydraulic pump will be affected. 2. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. ...

1. Workload cycle 2. Oil type 3. Minimum flow rate and maximum flow 4. Pressure range 5. System type: open system or closed system 6. Ambient temperature, system working temperature and cooling system 7. Oil pump type: gear pump, ...

1: Disassemble the proportional valve Unscrew the nut and slide out of the coil to remove the coil from the proportional end. Use a wrench to loosen and remove the tube. Remove the spring and slide the hex wrench from the tube. Then remove the spool from the valve. 2: Check the fatigue of all individual parts of the proportional valve, grinding ...

The balancing principle of the balancing valve and its function are explained The principle of balance The TA balancing concept is the concept of total equilibrium, which believes that only after the resistance of the system is adjusted and balanced, can each equipment obtain the design flow under the design operating conditions. Fluid network system for the HVAC industry ...

1. Cause of failure: the oil level of the hydraulic oil tank is too low; Exclusion method: Add hydraulic oil. 2. Cause of failure: Hydraulic oil is not used according to the season; Exclusion method: Usually suitable for 46# hydraulic oil (or 68#) without special replacement, consider using it when it is cold in the north in winter...

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Simplify the design The complete solution can be customized according to the user's needs Digital on-board electronics Compact design (integrated pressure sensor technology) External pressure sensor connection to meet the user's customized application needs The interface can be customized on demand ...

1. There are two oil inlets and one oil return port for the pressure reducing valve and one-way pressure reduction connected by threads and flanges, and one oil inlet and one oil return port for one-way pressure reduction and one-way pressure reduction connected by plate connection. During installation, attention must be paid to connect the oil drain port directly back to the Rexroth hydraulic pump oil tank, and keep the oil drain circuit unblocked.

1. According to the form of gear meshing, it can be divided into: external meshing and internal meshing 2. According to the tooth shape curve, it can be divided into: involute tooth form and cycloidal type 3. According to the form of the tooth surface, it can be divided into: spur gear type, helical gear type, herringbone gear type, arc tooth surface gear type 4. Press ...

● Robust and precise thanks to the Planetary Screw Assembly (PLSA). ● Digital engineering: freely configurable with a range of different options ● Compact design for easy integration 　　Robust, precise and efficient: EMC-HP stands for press-fitting, riveting, positioning and testing.

1) Piston pumps are generally used in the hydraulic transmission systems of machine tools, metallurgy, forging, mining and hoisting machinery, and are especially widely used in high-power hydraulic transmission systems. 2) REXROTH vane pumps are generally used in mining, coal, metallurgy, chemical industry, environmental protection and other industries. One...

Despite the challenging environment, Bosch Rexroth achieved double-digit sales growth in fiscal 2022; Demand for new orders remained strong at 7.3 billion euros; Record investments in R&D, innovation and production networks; Through acquisitions and mergers ...

Technical parameters 1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode; 2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter; 3) Working pressure difference: The minimum working pressure difference is above 0.04Mpa.

1. Daily maintenance 1) Strictly implement the post operation method and carefully fill in the operation records. 2) Check the bearing temperature and oil pressure regularly; Check the level height of the lubricating oil every shift. 3) Check whether there is leakage in the sealing part once per shift. 4) Do a good job in each shift ...

1) Swash plate axial piston variable pump, used for open hydraulic rotation back 2) Mainly used in the field of mobile machinery 3) The pump works under the condition of self-priming, mailbox pressurization or with built-in suction pump, (centrifugal pump). 4) The output flow rate is proportional to the driving speed, and ...

1. Hydraulic pump: Straight shaft swash plate piston pumps are divided into two types: pressure oil supply type and self-priming oil type. Most of the pressure oil supply hydraulic pumps use oil tanks with air pressure, and there are also hydraulic pumps with oil replenishment sub-pumps to provide pressure oil to the oil inlet of the hydraulic pump. The self-priming oil energy of the self-priming hydraulic pump ...