タイトルまたは説明

Manufacturing Standard And Technical Parameter 1 Size: 2 to *4 inches 2 Pressure rating: 0.6 MPa to 1.6 MPa 3 Actuation mode: pneumatic 4 Design standard API**9, MSS-SP**7, JIS B***2, JIS B***4, BS ***5 5 Face to face: DIN***2, JIS B***2 6 Flange standard ASME/ANSI B*6.5 7 Test standard API**8, BS***5, DIN***0, JIS B***3 8 Suitable medium air, water, sewage, steam, coal gas, oil, etc. 9 Working temperature **0℃***0℃ Material of main parts： 1 Body cast iron, ductalloy, stainless steel, carbon steel 2 Disc ductalloy, stainless steel 3 Stem SS**0, SS**6 4 Seat ring NBR, EPDM, Silastic, Fluorubber, PTFE 5 Packing flexible graphite