12OE, ANSI 150, SOFT SEAT BUTTERFLY VALVE, CENTERED (CONCENTRIC) SHAFT, LUG TYPE, BI-DIRECTIONAL, FOR MARINE PETROCHEMICAL SERVICE. FLANGED CONNECTION IN ACCORDANCE WITH ASME B16.5. APPROXIMATE WEIGHT IN AIR: 53KG. DESIGN IN ACCORDANCE WITH API 609 AND API 598. VALVE SEALING MUST BE IN ACCORDANCE WITH API 598. VALVE DESIGN PRESSURE: 20 BAR MAXIMUM OPERATING TEMPERATURE: 82 (O)C BODY TIGHTNESS: 30 BAR (1.5 X DESIGN PRESSURE) DISC TIGHTNESS: 6 BAR (AIR) MATERIALS: BODY: CARBON STEEL – ASTM A216 GR, WCB BODY SEAT: VITON STEM: STAINLESS STEEL 17-4 PH DISC: ASTM A351 CF8M EQUIPMENT TO BE SUPPLIED WITH THE FOLLOWING DOCUMENTATION: – CERTIFICATE OF CONFORMITY – PRESSURE TEST CERTIFICATE. – CERTIFICATION OF TRACEABLE MATERIAL WITH CASTINGS – 2 YEAR WARRANTY OF CONTINUOUS TROUBLE FREE OPERATION.