上海閥盛閥門(men)制造有限(xian)公司主要(yao)生產(chan)呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)，可提供呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)價(jia)格，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)說明書，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)實(shi)物(wu)圖，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)結構(gou)圖，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)外形尺寸(cun)，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)執行(xing)標準，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)工作(zuo)原理(li)，呼(hu)吸(xi)(xi)(xi)(xi)人(ren)孔(kong)(kong)(kong)(kong)作(zuo)用特點。

呼吸人孔型號意義： 
產品采用全天候密封結構，以配重來調節吸入閥瓣和泄壓蓋的開閉，以不銹鋼波紋帶為阻火層，來阻止火焰的通過，并設雙抽屜口，為清洗更換阻火層提供了方便，縮短了時間。總之，該產品具有定壓排放、定壓吸入、式閉靈活、安全阻火、結構緊湊、密封性能好、安全可靠等優點。
呼吸人孔主要技術參數：
1、操作壓力：正壓+1765Pa180mmH20負壓-392Pa-40mmH20
2、阻火等級：BS5501：IIA級標準化
3、使用溫度：+50- -30℃
4、使用范圍：特別適用于貯存物料以氮氣封頂的拱頂常壓罐。

呼吸人孔工作原理：

呼吸人孔主體材料：