VALVE DIAPHRAGM COMPRISING FUNCTIONAL REGIONS, AND DIAPHRAGM VALVE

原文（中文）

A valve diaphragm for a diaphragm valve includes a clamping section aligned with an imaginary vertical plane of an actuation axis, and a functional section surrounded by the clamping section. The functional section includes at least two flexing sections and a web-shaped sealing section that separates the flexing sections and connects two portions of the clamping section. The sealing section is configured to have, at least in part, a greater compressive yield point and/or a smaller compression set in a direction perpendicular to its longitudinal extent than along its longitudinal extent. This directional difference in mechanical properties allows the sealing section to maintain dimensional stability under compressive load while permitting flexibility along its length for improved sealing performance and durability.