Micro 3-Way Solenoid Valve for Medical & Beauty Devices

Pneumatic Logic & Connection Tips

The core function of this 3-way valve is to provide flexible air-path switching. Since it utilizes a normally open (NO) architecture, it automatically vents pressure if the device loses power—a critical safety feature for wearable devices. When connecting the tubing, we recommend an interference fit to ensure the seal remains airtight even in high-vibration environments.

Circuit Driving & Efficiency

Since most applications involve battery-powered portables, we’ve optimized the coil's power draw. The current requirement is low enough that developers can drive it directly using standard MOSFETs or transistors. For devices requiring long duty cycles, using PWM (Pulse Width Modulation) is a smart way to further manage heat. This keeps the device casing cool to the touch while extending battery life.

Noise Shielding & Layout

For products requiring extreme quiet—like eye massagers—relying solely on the valve’s internal silent design isn't always enough. We suggest using soft silicone brackets or dampening foam to "float" the valve during installation. This prevents the metal frame from resonating against the device’s internal housing. Thanks to its incredibly lightweight footprint, you can tuck it into tight corners in any orientation without worrying about shifting the device’s center of gravity.