Rexroth solenoid valve 4WEH10J47/6EG24N9ETK4 in stock.

Brand

REXROTH/German Rexroth

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Road/Rail/Marine, Automotive & Parts, General

Rexroth is committed to providing safe, precise, efficient, and cost-effective drive and control technologies for all types of machinery and systems. The company integrates global application experience to develop innovative products, tailoring system solutions and services for customers in every segment of the mobile machinery, mechanical applications and engineering, factory automation, and renewable energy markets. Bosch Rexroth also provides customers with a wide range of hydraulic, electronic drive and control, pneumatic, gear, linear drive, and assembly technologies. The company operates in more than 80 countries worldwide, employs over 37,500 professionals, and achieved global sales of nearly €6.5 billion in 2012.

Rexroth solenoid valve selection should first follow four principles in order: safety, reliability, applicability, and economy. Secondly, it should be selected based on six aspects of the on-site operating conditions (i.e., piping parameters, fluid parameters, pressure parameters, electrical parameters, actuation method, and special requirements). 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, >DN50 requires a flange connection; ≤DN50 can be selected freely according to user 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: Valves can be gaseous, liquid, or mixed, especially for diameters greater than DN25, which must be clearly distinguished.

4) Fluid viscosity: Generally, below 50 cSt, any valve can be selected; 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 operation, waterproof mist, water spray, and submersible.

Rexroth Solenoid Valve Selection Principles

Safety:

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

2. Explosive environments: Products with the corresponding 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, for a nominal diameter greater than 15mm, use a multi-functional solenoid valve; for a nominal diameter less than 15mm, use a high-viscosity solenoid valve.

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 selected.

5) If the medium flows in a directional manner and backflow is not allowed, a bidirectional flow valve is required.

6) The medium temperature should be selected within the allowable range of the solenoid valve.

2. Piping Parameters

1) Select the valve port and model according to the medium flow direction requirements and pipeline connection method.

2) Select the nominal diameter according to the flow rate and valve Kv value, or select the same as the pipeline inner diameter.

3) Working pressure difference: For a minimum working pressure difference above 0.04Mpa, an indirect pilot-operated type can be selected; for a minimum working pressure difference close to or less than zero, a direct-acting or step-by-step direct-acting type must be selected. 3. Environmental Conditions

1) The maximum and minimum ambient temperatures should be within the allowable range;

2) In environments with high relative humidity or exposure to water droplets or rain, waterproof solenoid valves should be selected;

3) In environments with frequent vibration, bumps, and impacts, special types should be selected, such as marine solenoid valves;

4) In corrosive or explosive environments, corrosion-resistant types should be selected based on safety requirements;

5) If space is limited, multi-functional solenoid valves should be selected, as they eliminate the need for bypasses and three manual valves and facilitate online maintenance. 4. Power Supply Requirements

Rexroth Solenoid Valves

Rexroth Solenoid Valves

Rexroth Solenoid Valves

R900424147 DBDS10K1X/100

R900347498 Z2S6A1-6X/

R901188943 4WRZE16E150-7X/6EG24N9EK31/A1D3M

R900948924 4WEH10J47/6EG24N9ETK4/B10

0820060076

0820060026

Z2S10-1-3X

Z2FS6-5-4X/2QV

4WREE6W1-08-2X/G24K31/F1V upgraded to R901496449 4WREE6W1-08-3X/V/24F1 4WE6F6X/EG24N9K4

4WE6F6X/EG24NZ5L

4WE6F6X/EW220N9K4

4WE6F6X/EW220RNZ5L

4WE6FA6X/EG24N9K4

4WE6FA6X/EG24NZ5L

4WE6FA6X/EW220N9K4

4WE6FA6X/EW220RNZ5L

4WE6FB6X/EG24N9K4

4WE6FB6X/EG24NZ5L

4WE6FB6X/EW220N9K4

4WE6FB6X/EW220RNZ5L

4WE6G6X/EG24N9K4 4WE6G6X/EG24NZ5L

4WE6G6X/EW220N9K4

4WE6G6X/EW220RNZ5L

4WE6GA6X/EG24N9K4