BUTTERFLY VALVE DISC TYPE: CONCENTRIC; NOMINAL DIAMETER: 6.; BODY MATERIAL: PVDF; DISC MATERIAL: PVDF; ROD MATERIAL: AISI 316 STAINLESS STEEL; SEAT MATERIAL: VITON F; RING MATERIAL: VITON F; END: MOUNTING BETWEEN WAFER FLANGES; STANDARD: ASME B16.5; PRESSURE CLASS: 150 LBS; FACE TO FACE: 71.00 MM; OPERATION TYPE: MANUAL WITH STEERING WHEEL AND REDUCER; FLUID: HYDROCHLORIC ACID (18%); WORKING TEMPERATURE: 90 DEGREES CENTIGRADE; WORKING PRESSURE: 1.20 KGF/CM2; MANUFACTURER / REFERENCE ASAHI YUKIZAI: TYPE 57 + REDUCER 241