Knife Edge Gate Valves at Microfinish are designed to MSS SP81 and consists of two types; Series
50SF Flanged Water type and Series 50SW Lugged Water type. They are of Round port single piece
construction, Soft/ Metal seated 150 pressure class and sizes ranging from 2 to 30 inches. These valves
are generally used in slag flow line, slurry flow lines, ash flow lines, pulp flow lines, raw meal flow line
and similar applications. Valve operation options include manual gear, pneumatic and electric actuation.