DIAPHRAGM VALVE; NOMINAL SIZE: 6"; MOUNTING TYPE: FLANGED ENDS; FLUIDS: WATER + CHEMICALS; OPERATING TYPE: PNEUMATIC ACTUATOR; BODY TYPE: WEIR; BODY MATERIAL: DUCTILE IRON; DIAPHRAGM MATERIAL: EPDM OR PTFE; MOD: MOD: 6"-25-1-T-3-HRTTAG: (290, 299)VALVE: 6 INCHESWEIR TYPE DIAPHRAGM VALVESCENTURY BRANDDUCTILE IRON ASTM A395 FLANGED BODIES INTERNALLY COATED WITH POLYPROPYLENE (25-1), OR TEFZEL (26-1) WITH 1-PIECE EPDM (E) OR PTFE DIAPHRAGMS (T), WITH CENTURY PNEUMATIC ACTUATORS TYPES H (NORMALLY OPEN), OR HRT (NORMALLY CLOSED) OF DIFFERENT SIZES (SIZE 0, 1, 2A, 3 AND 4) ACCORDING TO ORIGINAL SPECIFICATION; MODEL: (290, 299)