... 3.Standard: ANSI B16.5,ANSI B16.47 ,GB,DIN,JIS ,BS,EN. 4.working press: CLASS 150 ... WN DN15~DN4000SO DN10~DN1000BL/PL DN10~DN2500Standard:ASME B16.5/ B16.47 ,DIN 2630,/2632/2631/2633DIN 2634 ... Special design available according to requirement Other details : American Series:CLASS 150, CLASS 300, CLASS 400, CLASS 600, ... CLASS 900, CLASS 1500, CLASS 2500European Series:PN 2.5, PN 6, PN 10, PN 16 ...