Mine non pressure door
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Mine non pressure door ,TEL156-1033-3958 Mine non pressure balance damper, mine non pressure damper, mine two-way split damper, balance the function of non pressure damper The air pressure in the coal mine is usually very high. It is difficult to open the old-fashioned air door, which often requires one or several people to force or pry open, wasting time. The non pressure air door is easy to open. No matter how strong the tunnel wind is, it can be easily pushed open. And it turns off automatically. It saves a lot of time. Moreover, the old-fashioned damper structure is unstable and the annual maintenance cost is high.
Mine non pressure door ,TEL156-1033-3958
礦用無壓平衡風門，礦用無壓風門，礦用雙向對開風門，平衡無壓風門的作用
煤礦井下風壓一般都很大，老式的風門開啟困難，往往需要一個(ge) 或者幾個(ge) 人用力或者撬開，浪費時間。無壓風門開啟方便，無論巷道風有多大，都可以輕鬆推開。而且自動關(guan) 閉。大大節省了時間。而且老式的風門結構不穩定，每年維修費用較高。
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