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.
2. Adjust the handle clockwise to increase the pressure, and adjust the handle counterclockwise to decrease the pressure.
3. When it is necessary to access the pressure gauge to measure the inlet pressure, the M14x1.5 screw plug on the shell can be controlled and replaced with the corresponding pipe joint.
4. When the valve is working, the air infiltration causes the oil to fluctuate and produce the sound of sleep, so the air does not enter the hydraulic oil of the pump.
5. When the oil pump and the oil circuit are normal, and the primary oil circuit of the valve is too low or the force is equal to zero, the valve cover should be disassembled, and the oil drain pipe should be checked to see if it is blocked, and whether the pressure regulating core and damping hole are clean.
6. When using remote control, the remote control port screw plug can be unscrewed and connected to the control oil circuit.
When setting the double-acting pressure of a mechanical Tule hydraulic pump, the correct method is to zone the pressure 1-1.5kg/cm2 (15-20 psig) above the back pressure. This is true in most cases. Sometimes, however, in order to achieve the required displacement of the pump, it is necessary to set the drive pressure slightly higher.
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More on that
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What are the functions of Rexroth relief valves?
1. It plays the role of pressure stabilization and overflow (the valve port is normally open)
In the fixed pump oil inlet or return oil throttling speed control system
2. Safety protection function (valve port normally closed)
Variable pump hydraulic system, fixed pump bypass throttling speed regulation system and non-throttling speed regulation system.
3. The effect of anti-load
4、 ...
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Rexroth Hydraulic Pumps – Routine maintenance and troubleshooting of gear pumps
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 ...
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Introduction to the characteristics of Rexroth relief valves
1. Because the action area of the poppet valve is very small, even if the pressure is very high, the spring rate is still not large, and the pressure regulation is light;
2. Because the spring of the main valve is very soft, the excitation fluctuation is small when the overflow volume changes. Good static characteristics;
3. It can adapt to the requirements of different pressure regulation ranges;
4. The main spool adopts ...
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What are the relevant applications for Rexroth vane pumps?
Rexroth vane pump speed selection
Rexroth vane pump flow rate and speed linear relationship, relative to low speed screw pump, high speed screw pump can increase the flow and head, but the power is significantly increased, high speed accelerates the wear between the rotor and the stator, must make the screw ...
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Rexroth hydraulic pump - how to use the piston pump
1. Preparation before starting: check the fastening of each component; Check the oil level of the oil tank, the height of the oil level is subject to the engraving line of the oil window on the oil tank, N46 in summer, N32 hydraulic oil in winter. High-pressure pumps and pumps above 140 should use the same type of anti-wear hydraulic oil. Check the pressure gauge range, liquid ...
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The basic structure and working principle of Rexroth relief valves
1. Direct-acting relief valve
How it works:
The hydraulic force and the spring force are directly balanced to control the opening and closing action of the valve core, so as to ensure that the pressure of the oil inlet is basically constant.
Peculiarity:
(1) The hydraulic pressure of the valve core is balanced by the spring force, so when the system pressure is very high...
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Classification of Rexroth solenoid valves and their introduction
1. Direct-acting solenoid valve
Principle: When the normally closed type is energized, the electromagnetic coil generates electromagnetic force to lift the open part from the valve seat and open the valve; When the power is off, the electromagnetic force disappears, the spring presses the opening on the valve seat, and the valve is open.
Features: In vacuum, negative pressure, zero pressure ...
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The working principle of the Rexroth vane pump PV7 series
The working principle of Rexroth vane pump PV7 series: Rexroth vane pump PV7 series is a pump in which the blades in the rotor groove are in contact with the pump casing (stator ring) to press the suction liquid from the oil inlet side to the oil discharge side. Because there are two kinds of vane pumps in history, according to the different types of pumps, a) specifically refers to the positive displacement pump ...
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Rexroth's ACTIVE Cockpit interactive software solution has been upgraded
At a glance: 81% more widget space
Fast positioning with the new navigation concept
Efficient features like favorites, quick search, media management, and more
The Bosch Rexroth ACTIVE Cockpit interactive software solution is suitable for a wide range of applications. ...
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Classification and function of Rexroth pressure control valves
1. Rexroth relief valve
Overflow, pressure stabilizer, which is used to regulate and maintain the oil supply pressure of the pump while overflowing the excess oil in the system. When the regulated pressure is reached, the hydraulic system is controlled to keep it in a constant state. Relief valves for overload protection are called safety valves. ...
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The opening ceremony of the second phase of the Bosch Rexroth plant in Xi'an was a complete success
On November 11, 2020, the opening ceremony of the second phase of Bosch Rexroth (Xi'an) Electronic Drive and Control Co., Ltd. was grandly held. With the completion of the second phase of the project, the Xi'an plant will become the overall supplier of the group's global intelligent manufacturing and industrial automation solutions, and Bosch Rexroth will provide the best solutions for the Chinese market.
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How to use Rexroth balance valves
1. The flow direction of the medium should be consistent with the direction of the arrow of the valve body;
2. The differential pressure balance valve should be installed on the return pipe, the valve is connected to the guide pipe, and the other end of the pressure guide pipe is connected with the water supply pipe, and it is recommended to install a 1/2" ball valve at the water supply end of the pressure guide pipe in order to start the function of eliminating blockage;
3、 ...
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Bosch Rexroth becomes a new partner of NEVONEX
· Bosch Rexroth Telematics Units (RCUs) help expand the digital ecosystem in agriculture
· The RCU can also be used as the basis for the manufacturer's own telematics solution
After partnering with Bosch Rexroth, NEVO, a manufacturer-independent provider of digital services ecosystem for agriculture ...
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Rexroth hydraulic pumps – use, repair and assembly of gear pumps
1. What should I pay attention to when using a gear pump?
(1) The oil suction height of the gear pump shall generally not be greater than 500mm.
(2) The gear pump should be directly connected with the motor through the flexible coupling, generally not rigidly connected or connected with the power source through the gear pair and belt mechanism, so as to avoid unilateral force, ...
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Rexroth hydraulic pump - piston pump maintenance precautions
1. Check whether the piston pump is damaged and corroded, and replace it if so.
2. Check the fit of the plunger pair. Insert the end of the plunger into the plunger sleeve, tilt it about 60°, and if the plunger can slide slowly under its own action, it will fit well.
3. Check the tightness of the plunger pair. Use...
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What are the common faults of Rexroth servo motors?
1. Aging of circuit board components: The components in the Rexroth servo motor circuit board may have problems such as aging and damage as the use time increases, resulting in the circuit board not working normally.
2. Poor circuit board contact: Rexroth servo motor circuit board is connected with other equipment.
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What should I pay attention to when installing the Rexroth Pressure Reducing Valve Model DR6?
1. For easy operation and maintenance, the valve is generally installed upright on the horizontal pipeline.
2. The installation of Rexroth pressure reducing valve DR6 must be in strict accordance with the direction of the arrow on the valve body to keep consistent with the direction of fluid flow. If the water quality is not clean and contains some impurities, it must be decompressed at Rexroth ...
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Rexroth oil lift piston pump parts repair method
1) If the cylinder body is inlaid with copper sleeve, it can be repaired by replacing the copper sleeve. First of all, trim the diameter of a set of plunger rods to a uniform size, and then polish the outer diameter with sandpaper of more than 1000#. There are three ways to install copper sleeves in the cylinder block: (a) Heating and hot charging of the cylinder block or low-temperature freezing and extrusion of the copper sleeve, interference ...
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What should be paid attention to in the maintenance of Rexroth oil pump?
1. Water will corrode the oil pump, so it is forbidden to use the oil pump to vacuum the substance containing water.
2. For substances containing a large amount of solvent, remove most of the solvent in the oven first, and then use an oil pump to vacuum.
3. Use the vacuum pump in the correct order to prevent suck-back. ...
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How to select Rexroth solenoid valve and its selection points
1. Select the solenoid valve according to the pipeline parameters: diameter specification (i.e., DN) and interface mode
1. Determine the diameter (DN) size according to the inner diameter size or flow requirements of the on-site pipeline.
2. Interface mode, generally DN50 to choose flange interface, DN50 can be freely selected according to user needs...
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