1、給水用U-PVC管材
2、特點:具有強度高,無毒,流體阻力小,安裝方便,易于貯存運輸等特點,管材和管件采用橡膠密封圈或溶劑粘接密封,安全可靠;生產規格為公稱外徑φ20 mm ~φ450mm,公稱壓力0.4MPa~1.6MPa,適用用于城鄉市政供水系統
3、技術指標:
項 目project | 單位unit | 指標target |
密 度Density | ㎏/m3 | 1350-1460 |
維卡軟化溫度Uygur card softening point | ℃ | ≥80 |
縱向回縮率Longitudinal retraction rate | % | ≤5 |
二氯甲烷浸漬試驗The methylene chloride soaks the experiment | / | 表面無變化no change in the surface |
落錘沖擊( | % | ≤5 |
液壓試驗Water test | / | 無破裂、無滲漏not to burst,Does not seep |
連接密封試驗Joint packing experiment | / | 無破裂、無滲漏not to burst,Does not seep |
4、衛生指標:
項 目project | 指 標targect |
鎘的含量 ㎎/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 |
鉛的含量 ㎎/L Lead content | 次萃取≤1.0 first extract <= 1.0 |
第三次萃取≤0.3 Third extract <= 0.3 | |
錫的含量 ㎎/L Tin content | 第三次萃取≤0.02 third extract <= 0.02 |
氯乙烯單體含量 ㎎/㎏Chloroethylene monomer content | ≤1.0 <= 1.0 |