Check-All CAV-5942-A20 Flange Insert Check Valve is a 3-in stainless steel inline spring check valve designed to install between ANSI flanges. As part of Check-All’s Custom Design spring-check family (CAV), the flange insert style drops into the bolt circle between two mating flanges, enabling horizontal or vertical installation with minimal piping disruption. The spring-assisted mechanism closes promptly on reverse flow to prevent backflow and protect downstream equipment. Many valves in this series meet API 594 requirements.
