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武汉泽诚石化设备有限公司
武汉泽诚石化设备有限公司
呼吸人孔（HXF-HR型）防爆阻火呼吸人孔（HXF-HRZ型）BreathingManholeBreathingManholewithFlameArresting呼吸人孔、阻火呼吸人孔是安装在储罐顶上的安全应急通气装置
呼吸人孔（HXF-HR型） 防爆阻火呼吸人孔（HXF-HRZ型）
Breathing Manhole Breathing Manhole with Flame Arresting
呼吸人孔、阻火呼吸人孔是安装在储罐顶上的安全应急通气装置，通常与阻火呼吸阀配套使用，既然避免因意外原因造成罐内急剧超压或真空时，损坏储罐而发生事故，又能起到安全防火作用，是保护储罐的安全装置，特别适用于贮存物料以氮气封顶的拱顶常压罐。具有定压排放、定压吸入、开闭灵活、安全阻火、结构紧凑、密封性能好、安全可靠等优点。
Breathing Man hole and Breathing Manhole With Flame Arresting is a kind of emergent venting device for safety , which shall be installed on the top of the tank roof. It is usually used together with breather valve and flame arrester. It can not only avoid sudden extra-pressure or vacuum in tank causting storage tank, especially used for normal-pressuredome roof tanks with nitrogen-covered storage fuel. The products have advantages in exhaling and inhaling under fixed pressure, opening and closinged by accidents but also arrest the flame safely. At present it has been applied very well in protecfreely, safe arresting flame, compact structure, well-performed sealing and safety reliability etc.
阻火呼吸人孔“设备材质" Materials of construction：
NO | 1 | 2 | 3 | 4 | 5 | 6 |
构件 Component | 壳体 Body | 阀杆 Stem Guide | 阀盘 Pressure Disk | 阀座 Pressure Seat | 阀套 Coating | 阻火芯件 Fire Arresting |
材质 Material | 不锈钢 Steel 铝合金 Aluminums 碳钢 Casting | 304 316 316L PTFE | 304 316 316L PTFE | 304 316 316L PTFE | 304 316 316L PTFE | 304 316 316L PTFE |
注：连接标准：HG 、GB、 ANSI、 JIS、 DIN等等.
Standard Connection：HG、GB、ANSI、JIS、DIN、ect.
操作压力：-392pa——+1961pa （-40pammH2O——+200mmH2O）
Operating Pressure：-392pa——+1961pa （-40pammH2O——+200mmH2O）
阻火呼吸人孔“尺寸表" Dimension table：
DN | 450 | 500 | 600 | 700 | 750 |
L | 370 | 380 | 480 | 540 | 600 |
H | 658 | 708 | 808 | 908 | 955 |
阻火呼吸人孔“订货须知" Order Construction：
1、订货时请注明产品尺寸、操作压力及材质。
Please give clear indication of Dimension，operating pressure and material.
2、当需要其他标准法兰、材质或操作压力时请在订货时注明。
Please give clear indication of flange,material and operating pressure if you need other standard.
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