CONTROL VALVE ; TYPE: CONTROL ; NOMINAL DIAMETER: 6” ; PRESSURE# CLASS: PN16 ; CONNECTION: FLANGED; BODY: CAST IRON ; ADDITIONAL CHARACTERISTIC: A) SPECIAL GROOVED CYLINDER B) PISTON GUIDE# BRONZE (2.0923) C) CAST PISTON, (1.4308) D)SEAL RING E)INTERNAL# AGAINST CORROSION F)DIMENSION FACE TO FACE: 500 MM ; FLUID: WATER ; OBTURATOR:# BALANCED; FLOW RATE CHARACTERISTIC: EQUAL, PERCENTAGE; FLOW COEFFICIENT: 11.40%; SEALING CLASS: VI; ACTUATOR: DOUBLE ACTING PISTON;# ACTION:, OPENS ON FAILURE; POSITIONER: ELECTRO PNEUMATIC ; INPUT SIGNAL: 4-20 MA; OUTPUT SIGNAL: 0.2 – 1.0 BAR; REFERENCE COMMERCIAL:# ERHARD-NEEDLE R KV PN16 DN300