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襯氟閥門的安裝和維護

發布日期:2019-01-07    點擊數:

襯氟閥門的安裝和維護,有以下幾條注意事項:

襯氟閥門

1、襯氟閥門或管件法蘭蓋板不能隨意拆開,除非已準備與管理連接,否則PTFE法蘭面可能因溫差、異物造成磕碰劃傷或扭曲變形而影響密封,如因檢驗需要而移動蓋板,也必須待檢驗后速將蓋板重新復位,以保護PTFE法蘭面。

2、氟塑料或塑料襯里閥門及管件管路連接時,一般并不再單獨使用墊片,但與異種材料(金屬面等)法蘭面相接時,應采用適當墊片,以保護PTFE法蘭面。

3、產品在系統使用中,如在較高溫度下發生泄漏,應首先將系統溫度降至室溫后,再查明原因,進行維修。

4、不允許在閥門及管件上做任何高溫焊接工作,以免造成襯里層的永久損害。

5、安裝時法蘭螺母應按對角線方向對稱依次均勻旋緊,并配以適當力矩:

若法蘭密封面發生泄漏,并且泄漏位置螺母已經鎖緊,此時應放松泄漏位置螺母半圈,再將其對側施以同樣力矩再次鎖緊。

若上述辦法仍未止漏時,應檢查PTFE法蘭面是否有凹凸面壓痕、劃傷,屆時可用細砂紙、布予以整平重新連接。

6、閥門及管件應存于干燥通風的室內,嚴禁堆疊放置。

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