泄漏修理管道带

Technical requirements: 1 hydrostatic test: DN100-DN150: 2.5Mpa DN200-DN250: 2.2Mpa DN300-DN350:1.6Mpa DN400-DN600:1.4Pma 2 tightness test: It is needed when used for gas pipeline. Not less than 0.6Mpa when text with the media of Oxygen 3 standards of rubble sealing washer : (HG/T3901—2000) 3.1 hardness: 50IRHD±51RHD 3.2 tensile strength: ≥9Mpa 3.3 elongationatrupture: ≥375% 3.4 compression set: 72h X 23centigrad ≤12% 3.5 hot air aging: 7d X 70 centigrade hardnesschange: -51IRHD +81IRDH -51IRDH +81IRDH tensile strength change: ≥-20% elongationatrupture change: -30% +10% 3.6 volumetric change in water: 7d X 70 centigrade -1% +8% specificationscope of outside diameter of pipeline(mm)lengthPressure weightsteelC.I (mm)(Mpa)(kg)BXD-DN100-K300106-116113-1233001.8 8BXD-DN150-K300157-170165-1753001.8 9BXD-DN200-K300209-229212-2323001.6 15BXD-DN250-K300263-283264-2843001.6 16BXD-DN300-K300314-334316-3363001.2 17BXD-DN400-K300401-431414-4443001.0 24BXD-DN500-K300504-534517-5473001.0 25BXD-DN600-K300605-635620-6503001.0 27