Valve needle

Valve needle & valve seat - Precise control thanks to high-performance ceramics

Valves are essential components in numerous industrial applications. Their main task is to control or completely shut off the flow of liquids or gases. Depending on the area of application, the design, actuation principle and mode of operation vary - from simple mechanical to fully automatic.

A particularly precise variant is the needle valve, in which the valve piston is designed in the shape of a needle. Due to its axial movement in the direction of the sealing seat, it enables fine control of the volume flow, even with very small flow rates. This makes needle valves particularly suitable for dosing and fine control applications in process, chemical or laboratory technology.

Ceramic solutions for extreme requirements

Especially when used with corrosive or abrasive media, the demands on the material used increase significantly. Conventional metals wear out quickly or react chemically with the medium. Valve needles and valve seats made of high-performance ceramics, such as Cerazur®, offer a proven alternative here.

The advantages of ceramic components:

• High wear resistance - extends service life under high cycle loads

• Excellent chemical resistance - resists acids, alkalis and solvents

• Dimensional stability under temperature stress - ideal for thermally demanding processes

• No metallic particles or abrasion - for sensitive or clean process environments

Materials in use

• Cerazur® - A high-performance oxide ceramic with very high mechanical strength and resistance to aggressive media.

• Zirconium oxide - As the base material of Cerazur, it belongs to the group of oxide ceramics and is known for its strength, temperature stability and durability.

Thanks to these material properties, ceramic valve components can reduce operating costs, minimize downtimes and make processes more economical overall.

Compatible materials