2.法蘭連接尺寸按:HG/T20592-2009;JB/T79-94
3.閥門檢查和試驗(yàn)按:GB/T13927-92
4.GB/T21465-2008
Q641F-16/25/40/64/100/160/250/320/420C/P-DN15
Q641F-16/25/40/64/100/160/250/320/420C/P-DN20
Q641F-16/25/40/64/100/160/250/320/420C/P-DN25
Q641F-16/25/40/64/100/160/250/320/420C/P-DN32
Q641F-16/25/40/64/100/160/250/320/420C/P-DN40
Q641F-16/25/40/64/100/160/250/320/420C/P-DN50
Q641F-16/25/40/64/100/160/250/320/420C/P-DN65
Q641F-16/25/40/64/100/160/250/320/420C/P-DN80
Q641F-16/25/40/64/100/160/250/320/420C/P-DN100
Q641F-16/25/40/64/100/160/250/320/420C/P-DN125
Q641F-16/25/40/64/100/160/250/320/420C/P-DN150
Q641F-16/25/40/64/100/160/250/320/420C/P-DN200
Q641F-16/25/40/64/100/160/250/320/420C/P-DN250