[Integza] shows how he made one using 3D printed parts and also has a lot ... including a one-way valve design with no moving parts. A pulsejet expels exhaust and intakes air through the same ...

Johannesburg Water’s pressure reducing valve (PRV) programme is reducing the pressure on the water supply network across the City of Johannesburg. A critical component of the initiative is the ...

Whether its soldering, lasercutting, or 3D printing, all of these processes ... [Fab] went with a simple butterfly valve design, similar to the throttle valve in most gasoline-powered cars.