Cast iron rubber lined wafer type butterfly valve pressure: 150lb ,PN10 ,PN16 CE,ISO,API, ABS Structure:butterfly valve Cast iron rubber lined wafer type butterfly valvesize: 2''-48'';pressure: 150lb;4. self cleaning function Cast iron rubber lined wafer type butterfly valve feature: Design standard: API609 , BS5155 , MSS-67-1995Face to face : API598Tubing flange: BS/ DIN / ANSI / JIS/ ASE / ASD ...