REXROTH solenoid valve 4WEH16E72/6EG24N9TK4 is in stock.

Brand

REXROTH/German Rexroth

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Petroleum, Mining, Energy, Electrical, General

REXROTH Solenoid Valves: This series of REXROTH solenoid valves consists of a pilot valve and a main valve core connected to form a channel combination. The normally closed type is closed when not energized. When the coil is energized, the generated magnetic force causes the moving and stationary iron cores to attract each other, opening the pilot valve port and allowing the medium to flow to the outlet. At this time, the pressure in the upper chamber of the main valve core decreases, falling below the pressure on the inlet side, creating a pressure difference that overcomes the spring resistance and causes it to move upward, thus opening the main valve port and allowing the medium to flow. When the coil is de-energized, the magnetic force disappears, and the moving iron core resets under the spring force, closing the pilot port. The medium then flows in through the balance hole, increasing the pressure in the upper chamber of the main valve core, which moves downward under the spring force, closing the main valve port. The normally open type operates on the opposite principle. Examples include: SLA, DF (φ15 and above), ZCZ, etc.

REXROTH solenoid valves: Available in normally closed and normally open types. The normally closed type is closed when de-energized. When the coil is energized, electromagnetic force causes the moving iron core to overcome the spring force and engage with the stationary iron core, directly opening the valve and allowing the medium to flow. When the coil is de-energized, the electromagnetic force disappears, and the moving iron core returns to its original position under the spring force, directly closing the valve port and preventing the medium from flowing. It has a simple structure, reliable operation, and works normally under zero differential pressure and micro-vacuum. The normally open type is the opposite. Examples include REXROTH solenoid valves with a flow diameter smaller than φ6.

REXROTH solenoid valves: This valve integrates primary and secondary opening valves. The main valve and pilot valve open the main valve port directly through electromagnetic force and differential pressure in stages. When the coil is energized, electromagnetic force is generated, causing the moving and stationary iron cores to attract each other. The pilot valve port opens and is located on the main valve port, with the moving iron core connected to the main valve core. At this time, the pressure in the upper chamber of the main valve is relieved through the pilot valve port. Under the combined action of pressure difference and electromagnetic force, the main valve core moves upward, opening the main valve for media flow. When the coil is de-energized, the electromagnetic force disappears. The moving iron core closes the pilot valve port under its own weight and spring force. The media then enters the upper chamber of the main valve core through the balance hole, increasing the pressure in the upper chamber. Under the action of spring reset and pressure, the main valve closes, cutting off media flow. The structure is reasonable, the operation is reliable, and it works reliably even at zero pressure difference. Examples include: ZQDF, ZS, and 2W.

Bosch-Rexroth pneumatic components from Germany are available at very competitive prices. We have a company in Germany and handle all customs clearance ourselves. Just provide the correct model number or a photo of the nameplate, and we can provide a timely quote.

Rexroth Pneumatic Cylinder Parameters:

Profile Cylinder, ISO 15552, Series PRA

* 32 - 125 mm

* Interface: G 1/8 - G 1/2 Double-acting

* With magnetic piston

* Cushioning: Elastic, Adjustable, Pneumatic

* Piston Rod: External thread

* ATEX optional

Compressed Air Connection Size: Internal thread

Working Pressure Range: 1.5 bar / 10 bar

Ambient Temperature: Minimum/Maximum -20°C / +80°C

Low/High Medium Temperature: -20°C / +80°C

Rexroth Pneumatic Medium: Compressed air

Particle Size: max. 50 μm

Oil Content in Compressed Air: 0 mg/m³ - 5 mg/m³ mg/m³?

Determine the piston thrust pressure: 6.3 bar

Rexroth Pneumatic Materials:

Cylinder Tube: Aluminum, Anodized

Piston Rod: Stainless Steel

Front Cover: Aluminum - Die Casting

Rear Cover: Aluminum - Die Casting

Rexroth Pneumatic Seals: Polyurethane

Special Nut for Piston Rod: Steel, Galvanized

Applicability of Rexroth Solenoid Valves: Inappropriate use is a waste of money and adds trouble!

1. Media Characteristics

1.1 Different types of solenoid valves should be selected for gas, liquid, or mixed states. For example, ZQDF is for air, ZQDF-Y for liquid, and ZQDF-2 (or -3) for steam. Otherwise, malfunctions may occur. The ZDF series multi-functional solenoid valves can be used for both gas and liquid. It is best to specify the media state when ordering so that the user does not need to adjust it during installation.

1.2 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. 1.3 Medium viscosity is typically below 50 cSt. If it exceeds this value, ZDF series multi-functional solenoid valves should be ordered as special orders for diameters greater than 15mm. For diameters less than 15mm, high-viscosity solenoid valves should be ordered.

1.4 When the medium cleanliness is not high, a backwash filter valve should be installed before the solenoid valve. For low pressure, a direct-acting diaphragm solenoid valve, such as CD-P, can be selected.

1.5 If the medium is directional and backflow is not allowed, ZDF-N and ZQDF-N valves are acceptable. However, if bidirectional flow is required, please specify the requirements.

1.6 The medium temperature should be within the allowable range of the solenoid valve.

2. Piping Parameters

2.1 Select the valve port and model according to the medium flow direction requirements and pipeline connection method. For example, for switching between one pipeline and two pipelines, select CA5 and Z3F for small diameters, and ZDF-Z1/2 for medium or large diameters. For controlling the convergence of two pipelines, select ZDF-Z2/1, etc.

2.2 Select the nominal diameter based on the flow rate and the valve's Kv value; alternatively, the same diameter as the pipe inner diameter can be selected. Please note that some manufacturers do not specify the Kv value, and often the valve orifice size is smaller than the interface pipe diameter. Do not prioritize lower prices and risk making a mistake.

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Rexroth solenoid valve 4WEH16E7X/EG24N9 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, Helón (Norgren)

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