Paasche - 3B Pressure Valve

3B Pressure Valve

Regulate airflow from propellant cans with precision brass control

Propellant cans deliver air at fixed pressure, manageable for consistent coverage, problematic for techniques requiring precise control. This brass valve solves that by regulating air volume between can and airbrush, transforming disposable propellant into a genuinely responsive system. Turn the knob to dial in exactly the pressure your work demands, from whisper-soft gradients to harder-edged definition.

All-brass construction ensures reliable performance across extended sessions. The valve maintains consistent regulation as can pressure gradually drops, compensating for that natural decline so your spray characteristics stay predictable from first stroke to last. Threads connect directly to standard propellant cans on one end, your airbrush hose on the other.

This setup works particularly well for portable airbrushing, plein air illustration, craft fairs, location work where compressor noise or power access creates problems. You gain meaningful control over disposable propellant without adding bulk or complexity. Adjust pressure on the fly as techniques shift, maintain consistent atomization as you work, and pack up without wrestling a compressor.

Airbrushing

Airbrushing Purchase Guide

Airbrush Types

Siphon Feed Side Mount

Paint is drawn from a bottle mounted on the side. Best for larger areas and thicker paints. Ideal for automotive and model painting.

Gravity Feed Top Mount

Paint flows from a top-mounted cup. More efficient paint usage and better for fine detail work. Preferred by illustrators and artists.

Bottle Feed Bottom Mount

Large capacity bottles for extended painting sessions. Great for automotive and industrial applications.

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