b'CHECK VALVES - SCREWED & WELD ENDSCREWED & WELD END CHECK VALVESSTANDARD PORT CLASS 2500DIMENSIONS PISTON CHECK / BALL CHECKStd Port (in) 1/2 3/4 1 1-1/4 1-1/2 2L (mm/in) 127 5 155 6.13 210 8.25 229 9 229 9 235 9.25H (mm/in) 94 3.69 116 4.57 147 5.75 176 6.94 176 6.94 195 7.625P (mm/in) 11 0.44 13 0.5 18 0.69 23 0.88 26 1 35 1.38Wt (kgs/lbs) 4.0 8.8 7.0 15.4 14.0 30.9 21.0 46.3 21.0 46.3 30.0 66.2Typical Cv Factor 1.2 3.4 6.2 9.8 12.9 18.265NB~150NB(2-1/2~6)refertodrawing.2690Classrefertodrawing.DIMENSIONS Y-PISTON CHECKStd Port (in) 1/2 3/4 1 1-1/4 1-1/2 2L (mm/in) 127 5 155 6.13 210 8.25 229 9 229 9 235 9.25H (mm/in) 94 3.69 116 4.57 147 5.75 176 6.94 176 6.94 195 7.625P (mm/in) 11 0.44 13 0.5 18 0.69 23 0.88 26 1 35 1.38Wt (kgs/lbs) 4.0 8.8 7.0 15.4 14.0 30.9 21.0 46.3 21.0 46.3 30.0 66.2Typical Cv Factor 3.9 5.9 12.9 24.9 29.9 39.065NB~150NB(2-1/2~6)refertodrawing.2690Classrefertodrawing.Dimensionsareindicativeandvaryaccordingtostandard,portdesignandbodymaterial.Refertoas-builtdrawing.Socket Weld Thread (NPT) Butt WeldDesignStandard:ASMEB16.11 DesignStandard:ASMEB1.20.1 DesignStandard:ASMEB16.2520 AUSTRALIAN PIPELINE VALVE'