Ụdị mbuli elu dị ala nwere valvụ nchekwa lever
A47H-16C, A47H-25C, A47H-40C
A47Y-64C, A47H-64C
A47Y-100C, A47H-100C
A na-eji valvụ nchekwa a maka akụrụngwa na pipeline nke uzuoku, ikuku wdg. ọkara ihe okpomọkụ na-arụ ọrụ na-erughị 350 Celsius C. Were maka ngwaọrụ nchebe ọzọ. Flange njikọ akụkụ nke iso Standard usoro otu nke JB/T-94.
