A216WCB WAF 150 12“ BORB VALVE, BASIC NAME VALVE MODIFIER NAME BUTTERFLY VALVE BODY MONOBLOCK BODY MATERIAL CARBON STEEL ASTM A216 WCB WAFER END END END TYPE FLAT FACE END PATTERN ASME B16.5 FACE TO FACE PATTERN API 609 A CONSTRUCTION ASME B16. 34 INTERNAL BOLTED DISC/STEM DISC STAINLESS STEEL ASTM A351 CF8M DISC LINER BARE DISC STEM STAINLESS STEEL ASTM A351 CF8M RTFE SEAT STEM SEAL PTFE TFM SPRING LOADED PISTON RING INSPECTION AND TEST API 598 PRESSURE CLASS 150 NOMINAL DIAMETER 12“ ADDITIONAL REQUIREMENTS SEE NOTE TRADE REFERENCE SEE NOTE: TRADE REFERENCE: METSO-12815W112236XZCQY-B1JKU16/55. ADDITIONAL REQUIREMENTS: – TFM STEM SEAL WITH LIVE LOADED; – AIR SUPPLY PRESSURE LIMITED TO 3 BAR; – THE VALVE WORKS WITH NATURAL GAS AT A PRESSURE OF 35000 MMC; – VALVE BODY PAINTED IN YELLOW EPOXY ACCORDING TO STANDARD MUNSELL 5Y8/12. SPECIFICATION NOTE: – THE VALVE MUST BE SUPPLIED WITH THE FOLLOWING CERTIFICATES: – ISO15848 BH; – SIL3.