Quality Control Tips for Consistent Air Breathing Valve Production
https://siliconesealstudio.almoheet-travel.com/how-to-match-a-silicone-valve-seal-to-flow-rate-and-product-viscosity
Custom parts can help a product feel easier and cleaner to use. The air breathing valve is a strong example because small changes can affect the result. The right design can reduce waste and improve control