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Product name:
ZHXRK型双抽屉式阻火呼吸人孔
specification:
Zoom in on the image
Category:
Pump valve fittings
--
呼吸阀|阻火器
Price:
factory price
Brand:
Shanghai
Place of Origin:
China
Available Quantity:
batch
delivery cycle:
Spot goods (or inquire by telephone)
Shanghai Beiyuan
Industry and Trade Co.,Ltd
+86-21-66770508
+86-139101609058
91way@163.com
13916950330
(Wechat)
ZHXRK型双抽屉式阻火呼吸人孔
Detailed product description:
ZHXRK型双抽屉式阻火呼吸人孔技术性能
1、 操作压力 正压:+1765Pa180mmH2O 负压:-392Pa-40mmH2O
2、 阻火等级:BS 5501:ⅡA级标准 3、使用温度:+60℃~30℃
3、 适用范围:特别适用于贮存物料以氮气封顶的拱顶常压罐
工作原理
在阻火呼吸正常工作情况下,阻火呼吸人孔基本保持密封状态,储罐处于正常压力。当呼吸阀正常工作满足不了因意外原因造成储罐压力急剧超压时,呼吸人孔的泄压盖自动顶开,进行紧急泄压,使罐内压力保持正常;当罐内压力急剧减压或超真空时,吸孔阀便开启急剧吸入大气,维护罐内正常压力;当吸入大气带有火花、火陷时,阻火层起到“器壁效应” 的作用来阻止火陷的通过,以保护储罐的安全。
型号意义:
ZHXRK型双抽屉式阻火呼吸人孔
(schematic diagram)
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