1、U-PVC特点:
①具有强度高,无毒,流体阻力小,安装方便,易于贮存运输等特点,
②管材和管件采用橡胶密封圈或溶剂粘接密封,安全可靠。
③生产规格为公称外径φ20 mm ~φ450mm,公称压力0.4MPa~1.6MPa,适用用于城乡市政供水系统
2、技术指标:
项 目project | 单位unit | 指标target |
密 度Density | ㎏/m3 | 1350-1460 |
维卡软化温度Uygur card softening point | ℃ | ≥80 |
纵向回缩率Longitudinal retraction rate | % | ≤5 |
二氯甲烷浸渍试验The methylene chloride soaks the experiment | / | 表面无变化no change in the surface |
落锤冲击(0℃)TIR Drop hammer impact (0 ℃) TIR | % | ≤5 |
液压试验Water test | / | 无破裂、无渗漏not to burst,Does not seep |
连接密封试验Joint packing experiment | / | 无破裂、无渗漏not to burst,Does not seep |
3、卫生指标:
项 目project | 指 标targect |
镉的含量 ㎎/LCadmium content | 三次萃取,每次≤0.01 three extracts, each time <= 0.01 |
汞的含量 ㎎/L Mercury content | 三次萃取,每次≤0.001 three extracts, each time <= 0.001 |
铅的含量 ㎎/L Lead content | *次萃取≤1.0 first extract <= 1.0 |
第三次萃取≤0.3 Third extract <= 0.3 | |
锡的含量 ㎎/L Tin content | 第三次萃取≤0.02 third extract <= 0.02 |
氯乙烯单体含量 ㎎/㎏Chloroethylene monomer content | ≤1.0 <= 1.0 |
来源:石家庄迪龙塑胶有限公司