The handbook of Technical irrigaTion informaTion - Hunter Industries

Handbook of Technical Irrigation InformationOperating Pressures for PVC, Polyethylene Pipe and Copper TubePressure Rating (PSI) at 73.4°F (23°C)Nominal Size Sch 80 PVC* Sch 40 PVC*(SDR 13.5)CL 315(SDR 21)CL 200(SDR 26)CL 160(SDR 32.5)CL 125Sch 40 PE½" 850 600 315 *** *** *** 190¾" 690 480 315 200 *** *** 1501" 630 450 315 200 160 *** 1401¼" 520 370 315 200 160 *** 1201½" 470 330 315 200 160 *** 1002" 400 280 315 200 160 *** 902½" 420 300 315 200 160 *** 1003" 370 260 315 200 160 125 804" 320 220 315 200 160 125 706" 280 180 315 200 160 125 608" 250 160 315 200 160 125 ++10" 230 140 315 200 160 125 ++12" 230 130 315 200 160 125 ++Note:1) Pressure ratings are the maximum that should be applied. Surge pressures should be included.2) Pressure ratings must be reduced for temperatures over 23°C (73.4°F)3) These ratings do not apply for threaded pipe. Do not thread Sch 40 pipe4) “***” indicates pipe not listed because wall thickness less than 0.060 minimum5) Burst pressures are generally about 2.5 to 2.8 times the maximum pressure rating6) PVC 1120, 1220 code designations7) Non-threaded pipe8) “*”Sch 80 and Sch 40 pipe rounded to the nearest ten.Copper TubeNominalSizeType M Type L Type KAnnealed Hard Drawn Annealed Hard Drawn Annealed Hard Drawn½" 430 760 625 1105 780 1375¾" 350 610 495 875 750 13151" 295 515 440 770 575 10101¼" 295 515 385 680 465 8201½" 290 510 355 630 435 7652" 300 450 315 555 380 6652½" 235 410 295 520 355 5203" 220 385 275 490 340 6054" 215 380 255 450 315 5556" 190 335 215 385 305 5408" 200 350 240 420 325 58010" 205 355 240 425 330 58512" 205 360 225 395 330 585Rated Internal Working Pressure for Copper Tube for Service Temperatures up to 150°F, PSI66