Hydraulic accumulator HAD0,7-250-1X/80G04A-1N111-BA

Hydraulic accumulator is a hydraulic device that can store a certain amount of energy to release the required hydraulic system.

Fluids only have low compressibility, while gases are highly compressible. All gas working principles are based on this difference when loading hydraulic accumulators.

The difference between airbag diaphragm accumulator lies in the type of separation element. The hydraulic accumulator is mainly composed of a fluid part and an airtight partition element gas section.

The fluid part is connected to the hydraulic circuit.

If a higher liquid pressure is applied to a specific amount of pressure gas, the gas volume decreases as the liquid pressure increases, and the gas pressure increases as the liquid pressure increases.

If the pressure of the fluid decreases, the fluid is pushed into the hydraulic system by the expanding gas until the pressure is balanced again.

　　Hydraulic accumulator HAD0,7-250-1X/80G04A-1N111-BA

Hydraulic solenoid valve is an automation basic component used to control fluids and belongs to actuators; Not limited to hydraulic and pneumatic. Electromagnetic valves are used to control the direction of hydraulic flow, and mechanical devices in factories are generally controlled by hydraulic cylinders, so electromagnetic valves are used.

1、 Characteristics

(1) External leakage is blocked, internal leakage is easy to control, and safe to use.

(2) The system is simple, easy to maintain, and cost-effective.

(3) Fast action, minimal power, and lightweight appearance.

　　Hydraulic accumulator HAD0,7-250-1X/80G04A-1N111-BA

2、 Classification

Hydraulic solenoid valve refers to the component used in hydraulic transmission to control the pressure, flow rate, and direction of liquid. The one that controls pressure is called a pressure control valve, the one that controls flow is called a flow control valve, and the one that controls on/off and flow direction is called a directional control valve.

1. Pressure control valves are divided into relief valves, pressure reducing valves, and sequence valves according to their purposes.

(1) Overflow valve: It can control the hydraulic system to maintain a constant state when the set pressure is reached. The overflow valve used for overload protection is called a safety valve. When the system malfunctions and the pressure rises to a limit that may cause damage, the valve port will open and overflow to ensure the safety of the system.

(2) Pressure reducing valve: It can control the branch circuit to obtain a stable pressure lower than the main circuit oil pressure. According to the different pressure functions it controls, pressure reducing valves can be divided into fixed value pressure reducing valves (with a constant output pressure), differential pressure reducing valves (with a constant input and output pressure difference), and proportional pressure reducing valves (with a certain ratio between input and output pressures).

(3) Sequential valve: It can make one actuator (such as hydraulic cylinder, hydraulic motor, etc.) move and then make other actuators move in sequence. The pressure generated by the oil pump first drives hydraulic cylinder 1 to move, and at the same time, it acts on area A through the inlet of the sequence valve. When hydraulic cylinder 1 moves * *, the pressure increases, and the upward thrust acting on area A is greater than the set value of the spring. The valve core rises to connect the inlet and outlet ports, causing hydraulic cylinder 2 to move.

2. Flow control valve adjusts the flow rate by adjusting the throttle area between the valve core and valve body and the local resistance it generates, thereby controlling the movement speed of the actuator. Flow control valves are divided into 5 types according to their purposes.

(1) Throttle valve: After adjusting the throttle area, it can keep the movement speed of the actuator with little change in load pressure and low requirements for motion uniformity basically stable.

(2) Speed regulating valve: It can maintain the inlet and outlet pressure difference of the throttle valve at a constant value when the load pressure changes. In this way, after adjusting the throttle area, regardless of changes in load pressure, the speed control valve can maintain a constant flow rate through the throttle valve, thereby stabilizing the movement speed of the actuator.

(3) Diverter valve: Regardless of the size of the load, a valve that can achieve equal flow between two actuators of the same oil source is called an equal amount diverter valve or a synchronous valve; The proportional diversion valve is used to distribute flow proportionally.

(4) Collecting valve: Its function is opposite to that of a diversion valve, distributing the flow into the collecting valve proportionally.

(5) Diverter and collector valve: It has both the functions of a diverter valve and a collector valve.

3. Directional control valves are divided into one-way valves and directional valves according to their purposes.

(1) One way valve: Only allows fluid to be connected in one direction in the pipeline, and to be cut off in the opposite direction.

(2) Directional valve: changes the on-off relationship between different pipelines according to the number of working positions of the valve core in the valve body, divided into two positions and three positions; According to the number of controlled channels, it can be divided into two channels, three channels, four channels, five channels, etc; According to the valve core driving method, manual motor, electric hydraulic, etc.

0531602565 HAD0,7-180-1X/35G04A-1N122-BA
0531602567 HAD0,7-180-1X/100Z06A-1N111-BA
0531602568 HAD0,7-180-1X/20G04A-1N111-BA
0531602570 HAD0,7-180-1X/13Z06A-1N111-BA
0531602571 HAD0,7-180-1X/35Z08E-1N111-BA
0531602572 HAD0,7-180-1X/40G04A-1N111-BA
0531602573 HAD0,7-180-1X/50G04A-1N111-BA
0531602574 HAD0,7-180-1X/30G04E-1N111-BA
0531602575 HAD0,7-180-1X/10Z06C-1E111-BA
0531602576 HAD0,7-180-1X/10G04A-1E111-BA
0531602577 HAD0,7-180-1X/15G04C-1N111-BA
0531602578 HAD0,7-180-1X/10G04E-1E111-BA
0531602579 HAD0,7-180-1X/18G04E-1E111-BA
0531602581 HAD0,7-207-1X/0F08A-2N111-USA
0531602584 HAD0,7-180-1X/80Z06F-1N111-BA
0531602585 HAD0,7-180-1X/25Z06F-1N111-BA
0531602586 HAD0,7-180-1X/40Z08E-1N111-BA
0531602587 HAD0,7-180-1X/15Z06E-1N111-BA
0531602588 HAD0,7-207-1X/0U04C-2N111-USA
0531602592 HAD0,7-180-1X/45G04A-1E111-BA
0531602598 HAD0,7-180-1X/0G04A-1N111-BA
0531602599 HAD0,7-180-1X/0Z06F-1N111-BA
0531602600 HAD0,7-250-1X/50Z06A-1N111-BA
0531602601 HAD0,7-250-1X/55Z06A-1N111-BA

The Rexroth diaphragm accumulator is built into the hydraulic drive system to store energy, absorb shock and vibration, and perform oil leakage compensation or volume compensation.

According to the Pressure Equipment Directive 97/23/EC, diaphragm accumulator belongs to pressure equipment.

HAD.. 1X/-2X diaphragm accumulator is limited to integration into machines and/or systems, or assembly with other components to form machines and/or systems.

During project planning, it is necessary to comply with the basic provisions of the European Union's Pressure Equipment Directive and Machinery Directive, as well as other local regulations outside the European Union.

Diaphragm type accumulators can only be debugged after integration into the intended machine/system, and the machine/system must comply with machine directives, pressure equipment directives, and other applicable local regulations.

Strictly adhere to the technical data, working conditions, and performance limitations specified in sample 50150.

Repairs can only be carried out by the manufacturer or its authorized dealers and agents. If this clause is not followed, the warranty will become invalid.

HAD.. 1X/-2X diaphragm accumulator is a technical equipment and should not be used for personal purposes.

2.3 Personnel Qualifications

Assembly, debugging, disassembly, and maintenance (including repair and maintenance) require basic knowledge of mechanics and hydraulics, as well as familiarity with relevant technical terms. To ensure operational safety, these activities can only be carried out by corresponding experts or appointed personnel under the guidance and supervision of experts.

Due to receiving technical training, possessing knowledge and experience, and understanding the relevant regulations for the job, experts are able to identify potential hazards and take appropriate safety measures. Experts must adhere to specific professional guidelines.

During assembly

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Be sure to depressurize and disconnect the relevant components before assembling the diaphragm accumulator. Ensure that the system does not restart. Regarding this, please always follow the operating instructions and any other technical documents related to the system.

Do not perform any welding, soldering, or mechanical operations on the diaphragm accumulator.

Before assembling the diaphragm accumulator, please check if it has been damaged during transportation.

Confirm whether the sealing surfaces of the seals and fluid joints are intact.

During assembly, it is necessary to ensure the cleanliness of the grade and prevent dust from entering the hydraulic pipeline, causing wear, failure, or malfunction.

Allow the product to adapt to the environment for a few hours before assembly to avoid condensation.

Fix the diaphragm accumulator securely to prevent accidental rolling or falling during assembly, in order to avoid personal injury or material damage to the diaphragm accumulator.

Before installing the hydraulic accumulator onto the fluid joint, ensure that the connection model on the hydraulic accumulator side corresponds to the connection model on the system side.

Use the installation fixture in 50150 to firmly fix the diaphragm accumulator, in order to release the pipeline joint and avoid loosening or damage caused by vibration.

Clean all leaked hydraulic oil as soon as possible during assembly to avoid slipping.

During debugging period

Ensure that the system has been depressurized before filling the diaphragm accumulator with nitrogen gas.

Only nitrogen gas with a volume ratio of 99.99% can be charged into the diaphragm accumulator. If other gases, especially air or oxygen, are added to the diaphragm accumulator, it may cause an explosion of the diaphragm accumulator.

When filling the diaphragm accumulator with nitrogen, always use filling and testing equipment that complies with sample 50150.

After inflating the accumulator, please clearly mark the visible working pressure on the diaphragm accumulator. At this point, do not use embossing, stamping, or other mechanical markings.

The product can only be debugged after installation is complete.

Follow the operating instructions of the machine/system.

during operation

Under the expected conditions of use of the hydraulic system, only authorized personnel may operate the adjusting elements of components or parts.

Only personnel authorized by the operator are allowed to enter the direct work area. This still needs to be executed when the system stops.

Ensure that the markings on the shell are always present and clearly visible. Otherwise, no further operation is allowed.

If there is an emergency, error, or other violation, the system should be shut down and ensure that it does not restart.

Diaphragm type accumulators must not use corrosive hydraulic oil. Otherwise, it may corrode and reduce the thickness of the container wall, leading to the rupture of the pressure vessel.

Ensure that the diaphragm accumulator is not subjected to any external force. The external force may damage the fluid joint and cause uncontrolled outflow of pressurized hydraulic oil