Back-up Ring, also named Convoluted Flanges for adapter.
Material: ductile iron A536 60-45-12 or CF8M.
Suite for IPS adapter.
Surface: Red prime paint/Epoxy Coating/E-coating/Hot dippted galvanized.
Flange Size: 1/2″-24″.
Designed per DR7, 267PSI.
Backup ring for IPS
