The minsup® Shouldered Butterfly Valve LCD SGI Nitrile Seat SS. DISC 290 Psi WP is a heavy-duty lever-operated butterfly valve designed for reliable shut-off and flow control in demanding mining and industrial pipelines. Built with an SG iron body, nitrile seat lining, and corrosion-resistant stainless steel disc and shaft, it offers strong durability, low flow resistance, and dependable sealing, with a working pressure of up to 290 PSI for water applications, making it well suited to air, water, and slurry service in tough site conditions.