Hy-Grade Products Filter Products Hy-Grade Series F and L (Lug Wafer) Details Hy-Grade Series X (ASME B16.10 Face-to-Face) Details Hy-Grade Series FF Full Open / Full Open Wafer Details Hy-Grade Series T (Wafer Pattern) Details Hy-Grade Series D (High Performance Dual Plate) Details Hy-Grade Series H (Flanged, Buttwelding & Hub Ended) Details No results found Download Catalogs Series F and L Series X Series FF Series T Series D Series H Product Videos Dual Disc Single Disc