Rexroth solenoid valve R431005003 in stock

Brand

REXROTH/Germany Rexroth

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Mining, Road/Rail/Marine, Comprehensive

Rexroth Solenoid Valve 4WE6T6X/EW220N9K4 in Stock

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 detached 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 the coil to burn out. 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 Jammed: The clearance between the solenoid valve's spool sleeve and valve core is very small (less than 0.008mm), and it is usually assembled as a single piece. When mechanical impurities are introduced or there is insufficient lubricating oil, it is easy to jam. A temporary fix 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 there is sufficient lubricating oil.

4. Air Leakage: Air leakage will cause insufficient air pressure, making it difficult for the forced valve to open and close. This is caused by damaged sealing gaskets or worn spool sleeves, resulting in air leakage between several cavities. When troubleshooting a solenoid valve malfunction in a switching system, it is crucial to choose an appropriate time to address the issue while the valve is de-energized. If the problem cannot be resolved within a single switching interval, the switching system should be paused for further troubleshooting.

Rexroth Solenoid Valve Selection Criteria:

1. Select the solenoid valve based on pipeline parameters: nominal diameter (DN) and connection type.

1) Determine the nominal diameter (DN) based on the on-site pipeline inner diameter or flow requirements.

2) For connection type, generally, flange connections are required for DN > 50, while for DN ≤ 50, the user can choose freely according to their needs.

2. Selecting Solenoid Valves Based on Fluid Parameters: Material and Temperature Group

1) Corrosive fluids: Corrosion-resistant solenoid valves and all-stainless steel valves are recommended; Ultra-clean edible fluids: Food-grade stainless steel solenoid valves are recommended.

2) High-temperature fluids: Solenoid valves made with high-temperature resistant electrical and sealing materials should be selected, and piston-type valves are preferred.

3) Fluid state: Fluids can be gaseous, liquid, or mixed, especially when the diameter is greater than DN25, these must be clearly distinguished.

4) Fluid viscosity: Generally, any viscosity can be selected below 50 cSt. If it exceeds this value, a high-viscosity solenoid valve should be selected.

3. Selecting Solenoid Valves Based on Pressure Parameters: Principle and Structural Types

1) Nominal pressure: This parameter has the same meaning as other general-purpose valves and is determined by the nominal pressure of the pipeline.

2) Working pressure: If the working pressure is low, a direct-acting or step-direct-acting principle valve must be selected; when the minimum working pressure difference is above 0.04 MPa, direct-acting, step-direct-acting, and pilot-operated valves can all be selected. 4. Electrical Selection: AC220V or DC24V should be prioritized for ease of use.

Rexroth Business Units

Rexroth Mobile Machinery:

Rexroth Construction Machinery, Material Handling Equipment, Agricultural and Forestry Machinery, Commercial/Road Vehicles

Mechanical Applications and Engineering, Factory Automation:

Motion Mechanisms, Automotive Industry, Mining, Oil and Gas Drilling (Surface), Stage Technology, Chemical Industry, Printing and Paper Processing, Energy Technology, Material Handling, Glass Machinery Manufacturing, Rubber Processing, Semiconductor and Electronics Industry, Woodworking Industry, Horizontal Directional Drilling Rigs, Engines, Plastics Machinery and Grinders, Metallurgy, Mining Equipment, Assembly and Loading/Unloading, Dredgers, Offshore Engineering, Processing and Packaging, Testing Technology, Recycling and Waste Management, Marine Engineering, Motion Simulation Technology, Solar Energy, Machine Tools (Cutting), Hydraulic Engineering, Tunnel Boring Machines, Metal Forming Machines and Presses, Conveying Technology, Fluid Dynamics Research, Shipyard Equipment, Cement Industry, Sugar Industry, Pulp and Paper Machinery.

Renewable Energy:

Wind Energy

Product Group

Drive Technology, Electronic Drive & Control Technology, Casting Technology, Gear Technology, Industrial Hydraulics, Linear Drive Technology, Travel Hydraulics, Assembly Technology, Pneumatics, Tightening & Welding Technology

Rexroth's Strong Sales Channels

As the Rexroth brand gains increasing recognition in China, many domestic trading companies are beginning to import Rexroth products through overseas channels.

Key Projects

2010 Shanghai World Expo "Magic Ball"

—Bosch Rexroth Drive & Linear Drive Technology

During the 2010 Shanghai World Expo, Bosch Rexroth designed the drive and linear drive solutions and provided technical support for the interactive "Magic Ball" in the German Pavilion. The "Magic Ball" could cycle up to one million times, attracting tens of thousands of visitors. Bosch Rexroth's ingenious solution ensured operational safety and stability, meeting the continuous movement requirements of the "Magic Ball."

National Centre for the Performing Arts, China

—Bosch Rexroth Stage Control System

Bosch Rexroth provided the stage control system for the National Centre for the Performing Arts, China. The theater's main stage features 15 lifting platforms capable of rapidly and precisely completing a 6.8-meter lifting journey at a speed of 0.5 meters per second, while strictly controlling the noise generated to below 65 decibels.

Wuhan Yangtze River Tunnel

--Bosch Rexroth Hydraulic Cylinders

R431005003

R434005163

4WE6J6X/EW220N9K4

4WE6J6X/EW220RNZ5L

4WE6JA6X/EG24N9K4

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4WE6TB6X/EW220RNZ5L

4WE6U6X/EG24N9K4

4WE6U6X/EG24NZ5L The company mainly deals with 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