Prem Chem ValVes - Premier Valves

pressure test / spark test7Pressure test / spark test (standard Q/DFL-01-99)ValvetypePressurePN(Mpa)Body(Mpa)Body test (water)Size DNTest time(seconds)QualifiedstandardH(Mpa)Leakage testHigh pressure (water) / low pressure (air)L(Mpa)DNTest time(seconds)Qualifiedstandard0.6 0.90.71.0 1.5 ≤50 15 1.1 ≤50~200 15ButterflyBallPlugDiaphragmGlobeCheck(CompensatorTeeand elbow)1.6 2.4 1.8No2.5 3.8 65~200 60 2.8 0.6 250~450 30humidity4.0 6.0 4.46.4 9.6 ≥250 180 7.1 ≥500 6010.0 15.0 11.0Spark test equipment, voltage 10~12kv, the probe scans on lining surface evenly at the speed of ≤50mm/s.No white spark test.No leakageClassCheckvalveOther150lb 2.92.2≤2” 60 152 ½ ”~12” 60 60 No300lb 7.7 5.68”~12” 60 120 humidity≥14” 120 300600lb 15.3 11.20.6≤2”2 ½ ”~12”8”~12”≥14”6060601201560120120No leakageMedium Water, compressed air Test temperature 5ºC~38ºCStandardGB/T 13927 API598 For butterfly valves, its testing time is longer than standardUnitconvertingMPa=10.2kgf/cm2 150(class 150)=1.96MPa 300(class 300)=5.11MPa 600(class 600)=10.21MPaNote: To GB/T13927 and API598, some requirements are higher than the data above.A P.O. Box 11735, Randhart, South Africa, 1457 W www.premiervalves.co.zaT +2711-908-3760 F +2711-908-1268 E sales@premiervalves.co.za