... .DN25mm~DN300mm 2.PN1.6, PN4.0 ANSI150, 300 eccentric plug rotary ball control (shut-off) valve1. Micro Processor Control, mechanics ... item:local LCD, flow characteristics curve transferring, Field Bus,water/explosion- proof design.8. Eccentric structure can reduce the wear of ... . Soft sealing type can reach zero leakage, hard sealing type plug and seat can be coated with high rigidity alloy to ...