The Industrial 18-12 Valve Diaphragm is a rubber sealing component with an 18-1/2 inch outer diameter and 24 bolt holes spaced around the perimeter for mounting. It installs inside industrial valves to flex and isolate process fluids or gases while maintaining a tight seal under pressure. The bolt pattern and material allow repeated cycling in piping systems handling liquids, steam, or chemicals without metal-to-metal contact at the valve seat.
