Malleable iron square head plug (Cored plug)
- Certificate: UL Listed / FM Approved
- Standard: ASME B16.14
- Material: Malleable iron ASTM A197
- Thread: NPT
- W. pressure: Class 150, 300 psi (-29°C to 66°C)
- Surface: Black iron / hot dip galvanized
Malleable iron countersunk plug (Square socket) is used to mount at the pipe end by male threaded connection with countersunk end, so to block the pipeline and form liquid or gas tight seal.