... : DIN/SMS/ISO... 4)connection: Weld Sanitary butterfly valve ( stainless steel butterfly valve, welded butterfly valve, flang butterfly valve, thresded butterfly ... , 300lb,600lb,900lb,1500lb,2500lb Body: Stainless Steel Disc or Ball: Stainless Steel+HF Stem: Stainless Steel Seat: Stainless Steel+HF Features Designed to API 6D Material ... ,Air,Gas,Vapor,Food,Pharmacy,Medicament,Oil,Acid,Alkali,Salt etc.