REXROTH solenoid valve 3DREM16P-7X/200YG24K4V in stock

Brand

REXROTH/German Rexroth

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Medical & Health, Environmental Protection, Food/Agricultural Products, Chemical, Petroleum

REXROTH Piston Pumps, REXROTH Proportional Valves, REXROTH Solenoid Valves, REXROTH Pneumatic Components

The selection of REXROTH solenoid valves should first follow the four principles of safety, reliability, applicability, and economy. Secondly, it should be based on six aspects of the on-site working conditions (i.e., pipeline parameters, fluid parameters, pressure parameters, electrical parameters, actuation method, and special requirements).

REXROTH Solenoid Valve Selection Basis:

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

1) Determine the nominal diameter (DN) according to the on-site pipeline inner diameter or flow requirements;

2) Connection method: Generally, >DN50 requires a flange connection; ≤DN50 can be freely selected according to user 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 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 voltage specifications are preferred for ease of use.

5. Selection Based on Continuous Operating 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, a normally open type cannot be selected; a continuously energized type should be chosen.

6. Selection of Auxiliary Functions Based on Environmental Requirements: Explosion-proof, check valve, manual operation, waterproof mist, water spray, submersible.

REXROTH Solenoid Valve Selection Principles

REXROTH Solenoid Valve Safety:

1. Corrosive Media: Plastic King Solenoid Valves and All-Stainless Steel Valves are recommended; for highly corrosive media, diaphragm type valves must be selected. 1. For neutral media, solenoid valves with copper alloy valve bodies are preferable; otherwise, rust particles will frequently flake off from the valve body, especially in applications with infrequent operation. Copper cannot be used for ammonia valves.

2. Explosive environments: Appropriate explosion-proof products must be selected. For outdoor installations or dusty environments, waterproof and dustproof models should be chosen.

3. The nominal pressure of the solenoid valve should exceed the maximum working pressure within the pipe.

REXROTH Solenoid Valve 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 used 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 typically below 50 cSt. If it exceeds this value, a multi-functional solenoid valve should be used for a nominal diameter greater than 15 mm; a high-viscosity solenoid valve should be used for a nominal diameter less than 15 mm.

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 bidirectional flow valve is required.

6) The medium temperature should be 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; alternatively, the same diameter as the pipeline inner diameter can be selected.

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

1) The maximum ambient temperature 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 Conditions

1) Select AC or DC solenoid valves according to the type of power supply. Generally, AC power is more readily available.

2) For voltage specifications, AC220V and DC24V should be preferred.

3) Power supply voltage fluctuations are typically +10% to -15% for AC and ±10% for DC. If these fluctuations exceed the tolerance, voltage stabilization measures must be taken.

4) The rated current and power consumption should be selected according to the power supply capacity. Note that the VA value is higher during AC startup; therefore, indirect-acting solenoid valves should be preferred when capacity is insufficient.

5. Control Accuracy

1) Ordinary solenoid valves only have open and closed positions. For high control accuracy and stable parameters, multi-position solenoid valves should be selected.

2) Activation Time: This refers to the time from when the electrical signal is connected or disconnected to when the main valve completes its action.

3) Leakage: The leakage values ​​given in the sample are for commonly used economic grades.

REXROTH Solenoid Valve Reliability:

1. Service Life: This is not included in the factory testing items but is a type testing item. To ensure quality, products from reputable manufacturers should be selected.

2. Duty Cycle: There are three types: continuous duty, intermittent duty, and short-time duty. For situations where the valve is open for extended periods with only short periods of closure, a normally open solenoid valve is preferable.

3. Operating Frequency: When high activation frequency is required, direct-acting solenoid valves should be preferred, and AC power supply is preferred.

4. Operational Reliability

Strictly speaking, this test is not yet formally included in China's solenoid valve professional standards. To ensure quality, products from reputable manufacturers should be selected. In some applications, the number of actuations is infrequent, but high reliability is required, such as in fire protection and emergency protection systems. This should not be taken lightly. For particularly critical applications, two valves should be used in combination for double protection.

REXROTH Solenoid Valve Economy:

It is one of the selection criteria, but it must be based on safety, applicability, and reliability.

Economy is not just about the product's price; priority should be given to its functionality and quality, as well as the costs of installation, maintenance, and other accessories.

More importantly, the cost of a single solenoid valve in the entire automation system and even the production line is negligible. Choosing the wrong valve to save money can lead to significant damage.

REXROTH solenoid valves in stock in Shanghai:

R901041085 ZDRS 6 VP-1X/100SMG24K32MG

R901025495 ZDRS 6 VP-1X/50AMG24K32MG

R900777725 ZDRS 6 VP-1X/210AMG24K32MG

R900756973 ZDRS 6 VP-1X/100AMG24K32MG

R902048735 INCHEINRICHTUNG, DREHDROSSEL 'LINKS'

R901234516 3DREM 16 P-7X/100YG24K4V

R901231067 3DREME 16 P-7X/200YG24K31A1V

R901225513 ZDREE 10 VP2-2X/315XLMG24K31A1M

R901220113 3DREME 10P-7X/200YG24K31A1V

R901218887 3DREM 16P-7X/200YG24K4V

R901218236 3DREM 10P-7X/200YG24K4V

R901218097 3DREME 10P-7X/200YG24K31F1V

R901213583 3DREE 16P-7X/200YG24K31A1V 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: Henstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

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