Swing Swing Check Valve - CB | Gestra Swing Check Valve - CB | Gestra The Swing Check Valve - CB by Gestra is a high-quality valve designed to prevent backflow in piping systems. It features a robust swing mechanism that allows fluid to flow in one direction while automatically closing to prevent reverse flow. This valve is suitable for various applications, including water, steam, and other non-aggressive fluids. Its... View Flanged (Wafer) PN 16 PN 40 DIN 1.0460