Type：cast，pressure seal bonnet

Nominal Size NPS：2"~14"

Pressure Grade Class：600~2500

Working Temperature：-29℃~500℃

Body Material： Carbon steel, Alloy steel,Stainless steel, Duplex stainless steel, Nickel alloy, etc

Design standard： NACE MR0175, BS1873,API623,ASME B16.34, API602,JB/T11484

Type of connection： BW,RF,RTJ

Operating：Manual, Electric

Applicable medium：H₂，H₂S, etc