Blog

Yes, cavitation in hydraulic and pneumatic valves can severely damage your system by causing erosion, noise, vibration, and reduced performance. In hydraulic systems, vapor bubbles implode violently, creating shock waves that pit metal surfaces. While less common in pneumatic systems due to air’s compressibility, rapid pressure drops can still cause component wear and efficiency loss.

Electromagnetic drives in pneumatic applications use solenoid principles to convert electrical energy into mechanical movement. When current flows through a coil, it generates a magnetic field that produces force on a ferromagnetic plunger, which then actuates valves controlling air flow in rodless cylinders and other pneumatic components.

Spool valves use sliding cylindrical elements with radial clearances for sealing and provide smooth flow transitions, while poppet valves employ axial seating with positive shut-off and typically offer superior sealing but with more abrupt flow characteristics.

Glandless spool valve technology eliminates traditional O-ring seals and gland packings by using precision-machined clearances, magnetic coupling, or integrated sealing mechanisms that prevent contamination ingress while maintaining zero external leakage and superior reliability.

Spool lap configuration—the dimensional relationship between spool lands and valve ports—determines whether a valve has continuous flow (underlap), positive shut-off (overlap), or instantaneous switching (zero-lap), directly affecting cylinder control characteristics, positioning accuracy, and energy efficiency.