Rexroth solenoid valves are available in stock.
$274.08
4WRZ10W685-7X/6EG24N9EK4 When the Rexroth solenoid valve is energized, the electromagnetic force opens the pilot orifice, causing the pressure in the upper chamber to drop rapidly. This creates a pressure differential around the closing element, with the pressure lower at the top and higher at the bottom. The fluid pressure then pushes the closing element upward, opening the valve. When de-energized, the spring force closes the pilot orifice, and the inlet pressure quickly creates a pressure differential around the closing element through the bypass orifice, with the pressure lower at the bottom and higher at the top. This fluid pressure then pushes the closing element downward, closing the valve.
Brand
REXROTH/Germany Rexroth
Flow Direction
One-way
3C Valve Category
Industrial
Application Areas
Environmental Protection, Biotechnology, Petroleum, Pharmaceutical/Biopharmaceutical, General
A Rexroth solenoid valve contains a sealed chamber with through-holes at different locations, each connecting to a different oil pipe. Inside the chamber is a piston, flanked by two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. Controlling the movement of the valve body opens or closes different drain holes. The inlet hole is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the cylinder, which in turn moves the piston rod, which in turn drives the mechanical device. Thus, controlling the flow of current to the electromagnets controls the mechanical movement.
A Rexroth solenoid valve consists of an electromagnetic coil and a magnetic core, and contains one or more holes. When the coil is energized or de-energized, the movement of the magnetic core causes fluid to flow through the valve body or be cut off, thereby changing the flow direction. The electromagnetic components of a solenoid valve consist of a fixed iron core, a moving iron core, and a coil; the valve body consists of a spool, a sleeve, and a spring base. The solenoid coil is directly mounted on the valve body, which is enclosed in a sealing tube, forming a simple and compact assembly. Commonly used solenoid valves in production include 2-position 3-way, 2-position 4-way, and 2-position 5-way valves. Here, we'll first explain the meaning of "2-position": for a solenoid valve, it means energized and de-energized; for the valve it controls, it means open and closed.
A malfunction of a Rexroth solenoid valve will directly affect the operation of switching and regulating valves. Common malfunctions include the solenoid valve not operating. The following troubleshooting steps should be taken:
1. Loose or disconnected solenoid valve wiring. The solenoid valve will not be energized. Tighten the wiring.
2. Burned-out solenoid valve coil. Disconnect the solenoid valve wiring and use a multimeter to measure. If an open circuit is detected, the solenoid valve coil is burnt out. The causes include: Moisture in the coil leading to poor insulation and magnetic leakage, resulting in excessive current and burnout. Therefore, it's crucial to prevent rainwater from entering the solenoid valve. Additionally, an overly stiff spring, excessive reaction force, or too few coil turns resulting in insufficient suction can also cause coil burnout. In an emergency, the manual button on the coil can be switched from the normal "0" position to the "1" position to open the valve.
3. Solenoid valve jamming: The clearance between the solenoid valve's spool sleeve and valve core is very small (less than 0.008mm), and they are usually assembled as a single piece. When mechanical impurities are introduced or there is insufficient lubricating oil, jamming can easily occur. A possible solution is to insert a steel wire through the small hole at the head to spring it back. The fundamental solution is to disassemble the solenoid valve, remove the valve core and valve core sleeve, and clean them with CCI4 to ensure the valve core moves freely within the valve sleeve. During disassembly, pay attention to the assembly sequence of each component and the location of external wiring to ensure correct reassembly and wiring. Also check if the oil mist lubricator nozzle is blocked and if there is sufficient lubricating oil.
4. Air Leakage: Air leakage causes insufficient air pressure, making it difficult to open and close the forced valve. This is caused by damaged gaskets or worn slide valves, resulting in air leakage between several cavities. When troubleshooting a solenoid valve malfunction in a switching system, choose an appropriate time to address the issue when the solenoid valve is de-energized. If the problem cannot be resolved within a single switching interval, pause the switching system and address it at a later time.
Rexroth solenoid valves are electromagnetically controlled industrial devices, fundamental automation components used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. There are many types of solenoid valves, each playing a different role in the control system. Commonly used types include check valves, safety valves, directional control valves, and speed control valves.
A Rexroth solenoid valve consists of an electromagnetic coil and a magnetic core, and is a valve body containing one or more orifices. When the coil is energized or de-energized, the rotation of the magnetic core causes fluid to flow through the valve body or be cut off, thus changing the fluid direction. The electromagnetic components of a solenoid valve consist of a fixed iron core, a moving iron core, and a coil; the valve body comprises a spool, a sleeve, and a spring base. The solenoid coil is directly mounted on the valve body, which is enclosed in a sealing tube, forming a simple and compact assembly. Commonly used solenoid valves in production include 2-position 3-way, 2-position 4-way, and 2-position 5-way valves. Here, let's first explain the meaning of "2-position": for a solenoid valve, it means energized and de-energized; for the valve it controls, it means open and closed.
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Our company mainly deals in 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, ROSS
British brands: Norgren
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi
