Valve 3 is a 45-degree angle with a 30-degree back cut, while valve 4 is a 30-degree seat angle with a very shallow, 22-degree back cut. Flow testing revealed that valve 4 generated the most low ...

Achieving perfect 30, 45, and 60-degree angles doesn’t have to be difficult – it's all about understanding the geometry behind them. In this video, viewers will uncover four simple yet ...