Rexroth solenoid valve 4WEH 16 K7X/6EG24N9K4 in stock

Brand

REXROTH/Germany Rexroth

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Mining, Electrical, General

A Rexroth solenoid valve has a sealed chamber with through-holes at different positions, 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.

Rexroth Solenoid Valve Selection Criteria:

1. Selecting the solenoid valve based on pipeline parameters: Nominal diameter (DN), connection type

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

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

2. Selecting the solenoid valve based on fluid parameters: Material, temperature group

1) Corrosive fluids: Corrosion-resistant solenoid valves and all-stainless steel 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 should be chosen.

3) Fluid state: Fluids can be gaseous, liquid, or mixed, especially for diameters greater than DN 25, which must be clearly distinguished.

4) Fluid viscosity: Generally, any fluid 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 Structure

1) Nominal Pressure: This parameter has the same meaning as other general-purpose valves, 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 must be selected. For a minimum working pressure difference of 0.04 MPa, direct-acting, step-direct-acting, and pilot-operated valves can all be selected.

4. Electrical Selection: AC220V and DC24V voltage specifications should be prioritized for convenience.

5. Selecting Based on Continuous Working Time: Normally Closed, Normally Open, or Continuously Energized

1) When the solenoid valve needs to be open for a long time, and the continuous time is longer than the closing time, a normally open type should be selected.

2) If the opening time is short or the opening and closing times are infrequent, a normally closed type should be selected.

3) However, for some safety protection applications, such as furnace and kiln flame monitoring, normally open valves cannot be selected; a continuously energized type should be chosen. 6. Select auxiliary functions according to environmental requirements: explosion-proof, check valve, manual, waterproof mist, water spray, and submersible.

Rexroth solenoid valves are made of all stainless steel; for highly corrosive media, diaphragm type valves must be selected. For neutral media, copper alloy valves with valve bodies are also recommended; otherwise, rust particles will often fall from the valve body, especially in infrequent applications. Copper valves cannot be used for ammonia.

2. Explosive environments: Products with the appropriate explosion-proof rating must be selected. For outdoor installations or dusty environments, waterproof and dustproof models should be selected.

3. The nominal pressure of the solenoid valve should exceed the maximum working pressure in the pipeline.

Applicability:

1. Media characteristics

1) Different types of solenoid valves should be selected for gaseous, liquid, or mixed states;

2) Different specifications of products should be selected for different media temperatures; otherwise, the coil will burn out, the seals will age, and the lifespan will be severely affected;

3) Media viscosity is usually below 50 cSt. If this value is exceeded, use a multi-functional solenoid valve if the pipe diameter is greater than 15mm; use a high-viscosity solenoid valve if the pipe diameter is less than 15mm.

4) When the cleanliness of the medium is not high, a backwash filter valve should be installed before the solenoid valve. For low pressure, a direct-acting diaphragm solenoid valve can be used.

5) If the medium flows in a directional manner and backflow is not allowed, a double-acting diaphragm solenoid valve is required.

Rexroth solenoid valves and proportional valves are available for immediate sale.

4WEH 16 G7X/6EG24N9ETK4 R900926886

4WEH 16 G7X/6EG24N9K4 R900926378

4WEH 16 H7X/6EG24N9ETK4 R900926207

4WEH 16 H7X/6EG24N9K4 R900933198

4WEH 16 J7X/6EG24N9ETK4 R900922085

4WEH 16 J7X/6EG24N9K4 R900925580

4WEH 16 M7X/6EG24N9ETK4 R900926887

4WEH 16 M7X/6EG24N9K4 R900929281

4WEH 16 R7X/6EG24N9ETK4 R900925977

4WEH 16 R7X/6EG24N9K4 R900929283

4WEH 16 T7X/6EG24N9ETK4 R900926888

4WEH 16 T7X/6EG24N9K4 R900942302

4WEH 16 V7X/6EG24N9K4 R900712908

4WEH 16 W7X/6EG24N9ETK4 R900925961

4WEH 16 W7X/6EG24N9K4 R900927092

4WEH 16 K7X/6EG24N9K4 R900963501

4WEH 22 E7X/6EG24N9K4 R900981655

4WEH 22 G7X/6EG24N9ETK4/B10P4.5 R900930144

4WEH 22 G7X/6EG24N9K4 R900927611

4WEH 22 H7X/6EG24N9ETK4/B10P4.5 R900730904

4WEH 22 H7X/6EG24N9K4 R900934810

4WEH 22 J7X/6EG24N9ETK4/B10P4.5 R900932049

4WEH 22 J7X/6EG24N9K4 R900916452

4WEH 22 M7X/6EG24N9K4 R900766705

4WEH 22 Q7X/6EG24N9ETK4/B10 R900951218

4WEH 22 Q7X/6EG24N9K4 R900747704

4WEH 22 R7X/6EG24N9ETK4/B10 R900932992

4WEH 22 R7X/6EG24N9K4 R900923680

4WEH 22 W7X/6EG24N9ETK4/B10 R900956272

4WEH 22 W7X/6EG24N9K4 R900978642

4WEH 22 HD7X/6EG24N9ETK4/B10 R900926507

4WEH 22 HD7X/6EG24N9K4 R900925823

4WEH 22 HK7X/6EG24N9ETK4/B10 R900753578

4WEH 22 K7X/6EG24N9ETK4/B10 R900963669

4WEH 22 K7X/6EG24N9K4 R900978132

4WEH 22 Z7X/6EG24N9K4 R900705849

4WEH 32 C6X/6EG24N9EK4/B10P4.5 R900700270

4WEH 32 H6X/6EG24N9K4 R900951221

4WEH 32 J6X/6EG24N9ETK4/B10 R900932052

4WEH 32 J6X/6EG24N9K4 R900933558

4WEH 32 M6X/6EG24N9EK4/B10 R900766461

4WEH 32 M6X/6EG24N9K4 R900947975

4WEH 32 Q6X/6EG24N9ETK4/B10 R900961918

4WEH 32 Q6X/6EG24N9K4 R900702114

The company mainly deals in European and American brands and can purchase brands from any European country. For example, our advantageous 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

British brands: Helon Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi