Description:

Rexroth Proportional Valve 4WRZE25W8-325-73 6EG24N9ETK31/F1D3M is a high-performance pilot-operated proportional directional valve produced by Bosch Rexroth, Germany. Circular connector, 7-pole (6+PE), in accordance with EN 175201-804.
When the solenoid coil is de-energized, the main control spool is held in the center position by the centering spring.
The main control spool is controlled by the pilot control valve and moves proportionally. For example, when the solenoid "B" is driven, the control spool moves to the right, and the pilot oil enters the pressure chamber through the pilot control valve, causing the main control spool to deflect proportionally to the electrical input signal. The hydraulic oil is connected from P to A and B to T through an orifice-type cross section with progressive flow characteristics. The pilot oil can be supplied to the pilot control valve internally through port P, or externally through port X. When the solenoid valve is closed, the control spool and the main control spool move back to the center position. Depending on the position of the valve core, the hydraulic oil can flow from P to A, from B to T, or from P to B and from A to T. The optional manual override device can move the control valve core when the solenoid valve is not energized, but it should be noted that accidental activation of the manual override may cause uncontrolled machine movement.

Application areas:

CNC machine tools: Used to accurately control the hydraulic system of machine tools to achieve high-precision processing operations.
Aerospace field: In aerospace equipment, this proportional valve can be used to control the hydraulic system of aircraft to ensure flight safety and operational accuracy.
Ceramic factory hydraulic equipment: In the ceramic production process, it is used to control the hydraulic system of equipment such as presses to ensure the quality and production efficiency of ceramic products.
Steel plant hydraulic machinery: In steel production, it is used to control the hydraulic system of equipment such as rolling mills and shears to improve production efficiency and product quality.
Die casting machinery: In the die casting process, it is used to control the hydraulic system of die casting machines to achieve precise metal forming.
Plastic machinery: In the plastic molding process, it is used to control the hydraulic system of equipment such as injection molding machines to ensure the quality and production efficiency of plastic products.
Blow molding machine equipment: used to control the hydraulic system of the blow molding machine to achieve precise molding of products such as plastic bottles.
Paper mill hydraulic equipment: in papermaking production, it is used to control the hydraulic system of equipment such as papermaking machines to improve production efficiency and paper quality.

Advantages:

Precise control: The flow direction and flow of hydraulic oil can be precisely controlled through proportional solenoids, which can meet the precise operation requirements under various complex working conditions.
High reliability: The pilot design and high-quality manufacturing process enable it to maintain stable performance even in harsh working environments and reduce the probability of failure.
Integrated electronic components: The built-in electronic components (OBE) enable the proportional valve to be easily integrated with the control system to achieve intelligent control.
Multiple installation methods: It has multiple installation methods, such as base plate installation and flange connection, which can meet the installation requirements of different equipment.
Rich optional functions: It provides an optional manual override device, which can quickly perform emergency processing when the solenoid valve fails or requires manual operation, thereby improving the availability and safety of the equipment.
Strong adaptability: It can adapt to a variety of hydraulic oils, including mineral oil and flame-retardant water-containing hydraulic oil, and has clear requirements for the cleanliness of hydraulic oil. Through effective filtration, it can extend the service life.

FAQ:

Q1: Wonder if you accept small orders?

A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.

Q2: Can you send products to my country?

A2: Sure, we can. If you do not have your own ship forwarder, we can help you.

Q3: What's your payment terms ?

A3: By T/T,LC AT SIGHT,100% full payment.

Q4: How long is your production lead time?

A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.

Q5: When can I get the quotation ?

A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.