REXROTH solenoid valve M-3SEW6U3X/420MG24N9K4 is in stock.

Brand

REXROTH/Germany Rexroth

Flow Direction

Unidirectional

3C Valve Category

Industrial

Application Areas

Environmental Protection, Biotechnology, Petroleum, Pharmaceutical/Biopharmaceutical, General

REXROTH Solenoid Valve Working Principle

A REXROTH solenoid valve has a sealed chamber with through-holes at different positions, each connecting to a different oil pipe. In the center of the chamber is a piston, and on either side are two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. By controlling the movement of the valve body, different drain holes are opened or closed. 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 malfunction in 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 receive power. 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. This can be caused by moisture in the coil, leading to poor insulation and magnetic leakage, resulting in excessive current and burnout. Therefore, prevent rainwater from entering the solenoid valve. Additionally, an overly stiff spring, excessive reaction force, or insufficient coil turns 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 stuck: The clearance between the solenoid valve's spool 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 lubrication, the valve can easily become stuck. One possible solution is to insert a steel wire through the small hole at the head to make it spring 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 lubricator spray hole is blocked and if the lubricating oil is sufficient.

4. Air Leakage: Air leakage will cause insufficient air pressure, making it difficult to open and close the forced valve. This is caused by damaged gaskets or worn spool 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

Rexroth solenoid valves are electromagnetically controlled industrial devices used to control fluids. They are fundamental automation components and 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; these include check valves, safety valves, directional control valves, and speed regulating valves.

Bosch Rexroth, a German company specializing in transmission and control systems, holds a leading position in industrial hydraulics, electronic motion and control, linear motion and assembly technology, pneumatics, hydraulic transmission services, and even mobile machinery hydraulics.

The working principle of a Bosch Rexroth solenoid valve is as follows: The solenoid valve has a sealed chamber with through-holes at different positions, each leading to a different oil pipe. In the center of the chamber is the valve itself, flanked by two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. By controlling the movement of the valve body, different drain holes are blocked or opened. The inlet hole is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the hydraulic cylinder, which in turn moves the piston rod, which in turn drives the mechanical device. Thus, controlling the current to the electromagnet controls the mechanical movement. The above describes the general principle of a solenoid valve. In reality, the working principle of a solenoid valve differs depending on the temperature and pressure of the medium flowing through it—for example, whether the pipeline is pressurized or unpressurized (free-flow). For instance, in a free-flow state requiring zero-pressure start, the coil, when energized, lifts the entire gate body. In a pressurized state, the coil, when energized, pulls out a pin inserted into the gate body, and the fluid pressure itself lifts the gate body. The difference between these two methods is that a free-flow solenoid valve, because the coil needs to lift the entire gate body, is larger, while a pressurized solenoid valve, which only needs to lift the pin, can be made smaller.

Bosch Rexroth Solenoid Valves (Germany)

R900566283 M-3SEW6U3X/420MG24N9K4

4WE6A Series Solenoid Valves

4WE6A6X/EW230N9K4

4WE6A6X/EW220N9K4

4WE6A6XEW220N9K4

4WE6A6X/EW230N9K4

4WE6A6X/EW230N9K4

4WE6B Series Solenoid Valves

4WE6B61/EG24N9K4

4WE6C Series Solenoid Valves

4WE6C61/EW230N9K4

4WE6C6X/EG24N9K4

4WE6C6X/EG24N9Z45L

4WE6C6X/OFEG24N9K4

4WE6C6X/EG24N9K4

4WE6C6XG24N25L

4WE6C6X/OFEG24N9K4R900564107

4WE6C-5X/AG24NZ4

4WE6C50B/AG 24Z4

4WE6C53/0FAG24N24

4WE6D Series Solenoid Valves

4WE6D52/OFBW110RNEX

4WE6D52/BW110RNEX

Rexroth 3-position 4-way, 2-position 4-way, and 2-position 3-way Solenoid Valves

4WE6D62/6EG24VN9K4

4WE6D7X/HG24N9K4

4WE6D73-62/EG24N9K33L/A12

4WE6D50/AG24NZ5L

4WE6D50/OFAG24NZ5L

4WE6D6X/EG24N9K4/V plug 00057292 prepared

4WE6D6X/EG24N9K4

4WE6D-6X/OFCG24N9Z5L

4WE6D6X/EG24N9K4

4WE6D-6X/OFCG24N9Z5L

4WE6D60/220V

4WE6D6X/OFSG24N9K4

4WE6D6X/OFEG24N9K4

4WE6D62/EG24N9K4 4WE6D6X/OFEG24N9K4/B18

4WE6D51/AG24NZ4

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