The Velan Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off. This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient “wedging” to ensure a uniform seal contact.

Technical Bulletin (Long PDF) Technical Bulletin (Short PDF) IOM 150# Gate ISO Face to Face - Dimensions 300# Gate ISO Face to Face - Dimensions 150# Butterfly Face to Face - Dimensions 300# Butterfly Face to Face - Dimensions TorqSeal Features TorqSeal Cv Materials of Construction Test Procedures How to Order (PDF)