... from DN 1/2" to DN24" and the pressure from PN150lb to 4500lb. API code. Various models of valves ... and instrument valves can be supplied accordance with the standard & code of GB, ASME, API, ANSI, AWWA, DIN, BS, ... valves can be supplied from PN1.0MPa to PN42MPa, or PN150lb to PN4500lb. The size of the valves ... can be supplied from DN 1/2" to DN24" and more biger size (for special requirement ...