Purchase now the Kuhnke 41.100.25 — Atlantechdrives provides you with this compact, high-reliability solenoid valve from the Kuhnke 41 series, designed for precise directional pneumatic control in industrial automation, machinery, and process equipment.
What Is the Kuhnke 41.100.25?
The 41.100.25 is a solenoid valve manufactured by Kuhnke (Kendrion), belonging to the well-established Kuhnke 41 series of compact pneumatic directional control valves. The part number structure decodes as follows: 41 identifies the valve body series; 100 denotes the nominal orifice or flow coefficient (Kv) variant; and 25 specifies the port size or pressure rating configuration. Together these identifiers define a specific valve with a defined flow rate, connection size, and operating pressure range for direct integration into industrial pneumatic circuits. The Kuhnke 41 series is a long-established product family found in a wide range of European industrial machinery, making the 41.100.25 a frequently required spare and replacement component for maintenance engineers working on Kuhnke-equipped systems. The series is renowned for its compact envelope, high cycle durability, and compatibility with the full Kuhnke coil and manifold ecosystem.
Key Technical Specifications
- Product series: Kuhnke 41 solenoid valve series
- Valve type: Pneumatic directional control solenoid valve
- Flow variant: .100 designation (consult Kuhnke 41 series datasheet for exact Kv value)
- Port / pressure configuration: .25 designation
- Operating medium: Filtered, lubricated or non-lubricated compressed air; neutral gases
- Operating pressure range: Typically 2–10 bar (verify in Kuhnke 41 series datasheet)
- Ambient temperature range: -10°C to +50°C
- Coil voltage options: Multiple voltages available; 24VDC most common — specify at ordering
- Electrical connection: DIN EN 175301-803 Form A
- Protection class: IP65 (connector installed)
- Duty cycle: 100% ED continuous duty
Compatibility and Applications
The Kuhnke 41.100.25 is a direct-fit replacement or spare for any Kuhnke 41 series installation specifying the .100.25 configuration. Typical applications include: packaging and converting machinery for high-speed pneumatic switching; automotive manufacturing in transfer lines and welding cells; printing and paper handling for web tension and gripper systems; semiconductor and electronics assembly in pick-and-place machinery; and general factory automation wherever the Kuhnke 41 series is the specified valve platform.
Expert Tips
When specifying or replacing the Kuhnke 41.100.25, always verify the coil voltage of the installed valve before ordering — the 41.100.25 body can be fitted with coils at different voltages (24VDC, 110VAC, 230VAC), and installing the wrong coil voltage is a common and costly maintenance error. If the valve is installed on a manifold, confirm it uses the sub-base mounting pattern specific to the Kuhnke 41 series, as non-Kuhnke manifolds are not compatible. For high-cycle applications above 5 million cycles per year, schedule periodic inspection of the valve seat and seals as preventive maintenance. Maintain a minimum supply pressure of 2 bar at the valve inlet to ensure consistent actuation force and repeatable switching performance. When sourcing spare coils separately, always specify the full valve series, voltage, and connector type — coil bore and retaining geometry are series-specific and not interchangeable across Kuhnke series.
Frequently Asked Questions
Q: Can the Kuhnke 41.100.25 be used with non-lubricated compressed air?
A: Yes. Kuhnke 41 series valves are suitable for both lubricated and non-lubricated compressed air, provided the supply is filtered to remove particulate and condensate. For non-lubricated applications, ensure air quality meets ISO 8573-1 Class 3 or better for solid particles and moisture to protect valve seals and internal surfaces.
Q: How do I identify whether the valve body or the coil has failed on a Kuhnke 41.100.25?
A: First verify the correct voltage is present at the coil terminals during the commanded ON state. If voltage is present but the valve does not actuate, measure coil resistance with a multimeter — open circuit (infinite resistance) indicates a burned coil; replace the coil only. If coil resistance is correct and voltage is present but the valve still fails to shift, the fault is mechanical — worn spool, contaminated body, or failed seal — and the valve body requires service or replacement.
Q: What is the expected service life of the Kuhnke 41.100.25?
A: Kuhnke 41 series solenoid valves are designed for tens of millions of switching cycles under correct operating conditions. Actual service life depends on cycle frequency, operating pressure, air quality, and ambient temperature. Kuhnke technical documentation provides rated cycle life data for critical application planning.
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